CN100553008C

CN100553008C - Light-emitting component and luminescent device

Info

Publication number: CN100553008C
Application number: CNB200580040713XA
Authority: CN
Inventors: 中島晴惠; 川上祥子; 熊木大介; 瀬尾哲史; 池田寿雄; 坂田淳一郎; 岩城裕司
Original assignee: Semiconductor Energy Laboratory Co Ltd
Current assignee: Semiconductor Energy Laboratory Co Ltd
Priority date: 2004-11-30
Filing date: 2005-11-28
Publication date: 2009-10-21
Anticipated expiration: 2025-11-28
Also published as: CN101065858A

Abstract

A target of the present invention provides a kind of light-emitting component, and it includes organic compounds and inorganic compound, and has low driving voltage.Light-emitting component of the present invention comprises a plurality of layers between pair of electrodes, comprises a layer in described a plurality of layers, and it comprises the carbazole derivates of general formula (1) expression and shows the inorganic compound that electronics is accepted character with respect to described carbazole derivates.By using this structure, electronics transmits between carbazole derivates and inorganic compound, and charge carrier produces in inside, therefore can reduce driving voltage of light-emitting.

Description

Light-emitting component and luminescent device

Technical field

The present invention relates to light-emitting component, the layer that this element comprises pair of electrodes and comprises luminescent substance, this luminescent substance can be luminous by applying electric field.In addition, the invention still further relates to the luminescent device that comprises described light-emitting component.

Background technology

The light-emitting component that uses luminescent material to form has the characteristics of thin, in light weight, the high speed of response of volume and low voltage drive.Therefore, people have very high expectation for its application in flat-panel monitor of future generation.In addition, it is said that luminescent device that light-emitting component is wherein arranged with matrix form has the advantage than the visibility of wideer visual angle of conventional liquid crystal display device and Geng Jia.

In a kind of basic structure of light-emitting component, the layer (luminescent layer) that comprises the organic compound with luminosity is between pair of electrodes.By this light-emitting component is applied voltage, from described electrode pair electronics and hole are transported to luminescent layer respectively, make electric current pass through described light-emitting component.By the combination again of these charge carriers (being electronics and hole), described organic compound with luminosity is excited then.When it has just launched light when excitation state is got back to ground state.

In the excitation state of organic compound deposits yields, there are excited singlet state and excited triplet state.The light that excited singlet state produces is called as fluorescence, and the light that excited triplet state produces is called as phosphorescence.

The thickness of this formed light-emitting component is generally equal to or less than 1 micron, for example is 0.1 micron.These light-emitting components have thin, the lightweight remarkable advantage of volume.In addition.Because be equal to or less than about 1 microsecond from the injection charge carrier to the luminous required time, described light-emitting component also has the advantage of high response speed.In addition, can launch enough light by only applying approximately the three ten-day period of hot season to the direct voltage of tens of volts, therefore the required energy consumption of described light-emitting component is lower.Because these advantages are so described light-emitting component has caused people's attention as flat-panel monitor element of future generation.

In addition, formed light-emitting component is the form of film.Therefore, by forming the large area light emitting element, can obtain the luminous of sheet at an easy rate.As the line source of representative the time, be difficult to obtain the light of this feature as the point-source of light of representative or with fluorescent lamp when using with incandescent lamp or LED.Therefore, described light-emitting component has the very high use value as the sheet light source, can be used for purposes such as illumination.

But described light-emitting component has the characteristics of durability weak point and poor heat resistance.These problems have hindered the development of this light-emitting component.As described in non-patent literature 1, usually organic compound is stacked to be gone out organic film and forms light-emitting component by using.Therefore it is believed that the short durability of organic compound and the fragility of organic film have caused the problems referred to above.

On the other hand, people replace organic film to form light-emitting component at the layer of attempting using organic compound and inorganic compound to mix formation.For example, patent documentation 1 has disclosed a kind of light-emitting component, and in the luminescent layer that this light-emitting component uses, the fluorescence organic molecule is dispersed in the metal oxide.In addition, patent documentation 2 has disclosed by more stacked layer of light-emitting component that forms, in these layers, organic compound (compound with hole transport character, compound with electric transmission character, the compound that perhaps has luminosity) be dispersed in the silica matrix by covalent bond.Durability or the thermal endurance of having reported described light-emitting component in these documents obtain to improve.

But in

patent documentation

1 and 2 light-emitting components that disclosed, described organic compound is dispersed in the metal oxide with insulating property (properties) simply.Therefore, there is a problem in the light-emitting component that disclosed in the

patent documentation

1 and 2, and promptly with respect to the light-emitting component of routine, electric current is more difficult to flow through in the

document

1 and 2 described light-emitting components (promptly, provide the required voltage of specific quantity electric current to increase, promptly resistance has increased).

The brightness of the light that these light-emitting components are launched increases pro rata with the current density that flows through this light-emitting component, thereby has caused the problem that the required voltage (being driving voltage) of certain luminance increases that obtains.Can obtain long wearing and good thermal endurance even if this makes in the metal oxide by organic compound is dispersed in simply, but driving voltage and energy consumption can improve all.

In order to suppress the short circuit that light-emitting component causes owing to reasons such as dust, the thickness that increases light-emitting component is effectively.But when the thickness of the light-emitting component that is disclosed in

patent documentation

1 or 2 increased, driving voltage also can further increase.That is to say that the thickness that increases the light-emitting component of conventional structure is actually very difficult.

[non-patent literature I]: C.W.Tang etc., Applied Physics Letters, the 51st volume, the 12nd phase, 913-915 page or leaf (1987).

[patent documentation 1]: Japanese Patent Application Publication flat 2-288092 number.

[patent documentation 2]: Japanese Patent Application Publication 2000-306669 number.

Summary of the invention

In view of the above problems, a target of the present invention provides a kind of light-emitting component, and this light-emitting component includes organic compounds and inorganic compound, and has low driving voltage.Another target of the present invention provides a kind of light-emitting component, though this light-emitting component increase comprise luminescent substance the layer thickness in, still can suppress the increase of driving voltage.Another target of the present invention provides the luminescent device that comprises this light-emitting component.

By conscientious test, the inventor finds and can solve the problems referred to above by apply the layer that one deck includes organic compounds and inorganic compound simultaneously for light-emitting component that with respect to described organic compound, described inorganic compound shows the character of accepting electronics.

That is to say, in one aspect of the invention, light-emitting component has a plurality of layers between pair of electrodes, comprise a layer in these a plurality of layers, this layer comprises the carbazole derivates of general formula (1) expression, and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1).

R wherein ¹Any one that expression is following: hydrogen, the alkyl that comprises 1-6 carbon atom, the aryl that comprises 6-25 carbon atom, the heteroaryl that comprises 5-9 carbon atom, aryl alkyl and comprise the acyl group of 1-7 carbon atom;

R ²Any one that expression is following: the substituting group of hydrogen, the alkyl that comprises 1-6 carbon atom and general formula (2) expression;

Ar ¹To Ar ⁶Can be identical or mutually different, represent the heteroaryl that comprises the aryl of 6-25 carbon atom or comprise 5-9 carbon atom independently;

X can be identical or mutually different with Y, represents the divalent heterocyclic group that comprises the bivalent aromatic hydrocarbon group of 6-25 carbon atom or comprise 5-10 carbon atom independently.

In above structure, described inorganic compound need be to show the material that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1).Specifically, described inorganic compound is the oxide of transition metal, is following one or more specifically: titanium dioxide, vanadium oxide, molybdenum oxide, tungsten oxide, rheium oxide, ruthenium-oxide, chromium oxide, zirconia, hafnium oxide, tantalum oxide and silver oxide.

In another aspect of the present invention, light-emitting component comprises a plurality of layers between pair of electrodes, in described a plurality of layer, one comprises the carbazole derivates shown in the general formula (1) and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1) for contacted layer with one of described electrode.

In addition, in above-mentioned general formula (1), R ¹In the preferably following group any one: methyl, ethyl, the tert-butyl group, phenyl, 4-xenyl and 1-naphthyl.

In above-mentioned general formula (1), R ²Be preferably the hydrogen or the tert-butyl group.Perhaps R ²Preferably has the structure shown in the general formula (2), wherein Ar ¹, Ar ², Ar ³Have respectively and Ar with X ⁴, Ar ⁵, Ar ⁶The substituting group identical with Y.

In addition, in the carbazole derivates shown in the general formula (1), the carbazole derivates shown in the following general formula (3) is preferred.

R in the formula ¹Any one that expression is following: hydrogen, comprise the alkyl of 1-6 carbon atom, comprise the aryl of 6-25 carbon atom, comprise the heteroaryl of 5-9 carbon atom, aryl alkyl and comprise the acyl group of 1-7 carbon atom;

R ²Any one that expression is following: hydrogen comprises the alkyl of 1-6 carbon atom and the substituting group shown in the general formula (4);

Ar ¹And Ar ²Can be identical or mutually different, represent the heteroaryl that comprises the aryl of 6-25 carbon atom or comprise 5-9 carbon atom independently.

In general formula (3), R ¹In the preferably following group any one: methyl, ethyl, the tert-butyl group, phenyl, 4-xenyl and 1-naphthyl.

In addition, in general formula (3), R ²The preferably hydrogen or the tert-butyl group.Perhaps R ²Preferably has the structure shown in the general formula (4), wherein Ar ¹And Ar ²Has identical substituting group.

More preferably use the carbazole derivates shown in the general formula (5).

R wherein ¹Any one that expression is following: hydrogen, comprise the alkyl of 1-6 carbon atom, comprise the aryl of 6-25 carbon atom, comprise the heteroaryl of 5-9 carbon atom, aryl alkyl and comprise the acyl group of 1-7 carbon atom;

R ²Any one that expression is following: hydrogen comprises the alkyl of 1-6 carbon atom and the substituting group of structural formula (6) expression.

In general formula (5), R ¹In the preferably following group any one: methyl, ethyl, the tert-butyl group, phenyl, 4-xenyl and 1-naphthyl.

In addition, in general formula (5), R ²The preferably hydrogen or the tert-butyl group.Perhaps, R ²The structure that preferably has general formula (6).

In addition, the preferred carbazole derivates that uses with the structure shown in the following general formula (103):

R ²Any one that expression is following: hydrogen comprises the alkyl and the represented substituting group of structural formula (104) of 1-6 carbon atom.

In general formula (103), R ¹In the preferably following group any one: methyl, ethyl, the tert-butyl group, phenyl, 4-xenyl and 1-naphthyl.

In addition, in general formula (103), R ²The preferably hydrogen or the tert-butyl group.Perhaps R ²Preferably has the structure shown in the structural formula (104).

In addition, the present invention includes luminescent device with above-mentioned light-emitting component.Luminescent device in this specification is represented a kind of image display device, luminescent device or light source (comprising lighting device).In addition, the module that luminescent device of the present invention also comprises wherein connector (for example FPC (flexible printer circuit), TAB (belt engages automatically) band or TCP (band carries encapsulation)) links to each other with panel, wherein have printed substrate to be positioned at the module of TAB band or TCP end, and wherein IC (integrated circuit) is directly installed on module on the light-emitting component by COG (chip places on glass) method.

Light-emitting component of the present invention has a layer, and this layer comprises the carbazole derivates of general formula (1) expression and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1).Therefore, electronics transmits between carbazole derivates and inorganic compound, thereby produces charge carrier.Because charge carrier produces in inside, so can reduce driving voltage.

In addition, owing to described charge carrier produces in inside, so described light-emitting component has splendid conduction property.Therefore, when the thickness of the layer that comprises luminescent substance increased, the rising of driving voltage can obtain to suppress.Therefore, can prevent short circuit, can under the prerequisite that does not cause driving voltage to raise, improve colorimetric purity by optical design.

In addition, in light-emitting component of the present invention, the layer that comprises luminescent substance not only includes organic compounds, but also comprises inorganic compound.Therefore, described light-emitting component has splendid thermal endurance and long wearing.

In addition, the light-emitting component of the application of the invention can provide to have less defective and the lower luminescent device of energy consumption.

The accompanying drawing summary

Fig. 1 is the schematic diagram of light-emitting component of the present invention;

Fig. 2 is the schematic diagram of light-emitting component of the present invention;

Fig. 3 A-3C is the schematic diagram of light-emitting component of the present invention;

Fig. 4 A-4C is the schematic diagram of light-emitting component of the present invention;

Fig. 5 is the schematic diagram of light-emitting component of the present invention;

Fig. 6 A-6C is the schematic diagram of light-emitting component of the present invention;

Fig. 7 A-7C is the schematic diagram of light-emitting component of the present invention;

Fig. 8 A and 8B are the schematic diagrames of luminescent device of the present invention;

Fig. 9 A-9E is to use the schematic diagram of the electronic equipment of luminescent device of the present invention;

Figure 10 is the schematic diagram of luminescent device of the present invention;

Figure 11 comprises 3, the absorption spectrum of the hybrid films of 6-two [N-(4-diphenyl amino phenyl)-N-phenyl amino]-9-phenyl carbazole and molybdenum oxide;

Figure 12 is the schematic diagram of an example of light-emitting component of the present invention;

Figure 13 has shown carbazole derivates 3-[N-of the present invention (4-diphenyl amino phenyl)-N-phenyl amino]-the 9-phenyl carbazole ¹H-NMR figure;

Figure 14 has shown carbazole derivates 3-[N-of the present invention (4-diphenyl amino phenyl)-N-phenyl amino]-the 9-phenyl carbazole ¹H-NMR figure;

Figure 15 has shown carbazole derivates 3 of the present invention, 6-two [N-(4-diphenyl amino phenyl)-N-phenyl amino]-9-phenyl carbazole ¹H-NMR figure;

Figure 16 has shown carbazole derivates 3 of the present invention, 6-two [N-(4-diphenyl amino phenyl)-N-phenyl amino]-9-phenyl carbazole ¹H-NMR figure;

Figure 17 has shown carbazole derivates 3-[N-of the present invention (4-diphenyl amino phenyl)-N-phenyl amino]-the thermogravimetric measurement result of 9-phenyl carbazole;

Figure 18 has shown carbazole derivates 3 of the present invention, the thermogravimetric measurement result of 6-two [N-(4-diphenyl amino phenyl)-N-phenyl amino]-9-phenyl carbazole;

Figure 19 shown comprise 3-[N-(4-diphenyl amino phenyl)-N-phenyl amino]-abosrption spectrogram of the hybrid films of 9-phenyl carbazole and molybdenum oxide;

Figure 20 shown comprise 3-[N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amino]-abosrption spectrogram of the hybrid films of 9-phenyl carbazole and molybdenum oxide;

Figure 21 has shown and has comprised 3, the abosrption spectrogram of the hybrid films of 6-two [N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amino]-9-phenyl carbazole and molybdenum oxide;

Figure 22 has shown N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amine ¹H-NMR figure;

Figure 23 has shown N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amine ¹H-NMR figure;

Figure 24 has shown N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amine ¹³C-NMR figure;

Figure 25 has shown 3-[N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amino]-the 9-phenyl carbazole ¹H-NMR figure;

Figure 26 has shown 3-[N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amino]-the 9-phenyl carbazole ¹H-NMR figure;

Figure 27 has shown 3,6-two [N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amino]-9-phenyl carbazole ¹H-NMR figure;

Figure 28 has shown 3,6-two [N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amino]-9-phenyl carbazole ¹H-NMR figure;

Figure 29 has shown the brightness-voltage characteristic figure of the light-emitting component of execution mode 10;

Figure 30 has shown the brightness-current efficiency characteristic pattern of the light-emitting component of execution mode 10;

Figure 31 has shown the emission spectrum figure of the light-emitting component of execution mode 10;

Figure 32 has shown the brightness-voltage characteristic figure of the light-emitting component of execution mode 11;

Figure 33 has shown the brightness-current efficiency characteristic pattern of the light-emitting component of execution mode 11;

Figure 34 has shown the emission spectrum figure of the light-emitting component of execution mode 11;

Figure 35 has shown the schematic diagram of the light-emitting component of execution mode 10;

Figure 36 is the schematic diagram of the light-emitting component of execution mode 11;

Figure 37 is the schematic diagram of light-emitting component of the present invention.

Best mode for carrying out the invention

Describe embodiments of the present invention below with reference to accompanying drawings in detail.Those skilled in the art are readily appreciated that, execution mode disclosed herein and details can improvement in every way under the prerequisite that does not deviate from purpose of the present invention and scope.The invention is not restricted to hereinafter described execution mode.

In addition, in the electrode pair of light-emitting component of the present invention, an electrode is as anode, when this electrode is applied electromotive force, when making the electromotive force of this electrode be higher than another electrode, this electrode light-emitting, another electrode is as negative electrode, when this electrode is applied electromotive force, make when the electromotive force of this electrode is lower than electrode as anode this cathodoluminescence.

[execution mode 1]

In execution mode 1, light-emitting component of the present invention is described with reference to Fig. 1.

Light-emitting component shown in Figure 1 has a kind of structure, and the layer 103 that wherein comprises luminescent substance is between first electrode 101 and second electrode 102.The described layer 103 that comprises luminescent substance comprises ground floor 111, and described ground floor 111 comprises the carbazole derivates shown in the general formula (1), and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1).

Specifically, the carbazole derivates of general formula (1) expression has splendid hole injection character and splendid hole transport character.Therefore, the described carbazole derivates that comprises general formula (1) expression and show electronics with respect to the carbazole derivates shown in the general formula (1) to accept the layer of inorganic compound of character preferred as the layer with hole transport character.That is to say the described carbazole derivates that comprises general formula (1) expression and show electronics with respect to the carbazole derivates shown in the general formula (1) and accept the ground floor 111 of inorganic compound of character preferably than the more close anode of luminescent layer.In execution mode 1, ground floor 111 and first electrode, the 101 contacted situations as anode of providing will be described.

Described ground floor 111 comprises the carbazole derivates shown in the general formula (1) and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1).Inject character and splendid hole transport character because the carbazole derivates of described general formula (1) expression has splendid hole, described ground floor 111 preferably contacts with first electrode 101.

Contained carbazole derivates has the represented structure of general formula (1) in the described ground floor 111.

Specifically, the alkyl that comprises 1-6 carbon atom can comprise for example methyl, ethyl, n-pro-pyl, normal-butyl, n-hexyl etc.Also can use branched alkyl, for example the isopropyl and the tert-butyl group.

The aryl of the described 6-25 of a comprising carbon atom for example can comprise specifically phenyl, 4-xenyl, 1-naphthyl, 2-naphthyl, 9-antolyl group, 9-phenanthryl, 1-pyrenyl, 9,9 '-dimethyl-2-fluorenyl, spiral shell-9,9 '-two fluorenes-2-base etc.In addition, also can use to comprise substituent aryl, for example between tolyl, p-methylphenyl, 2-fluorophenyl, 3-fluorophenyl and 4-fluorophenyl.

The heteroaryl of the described 5-9 of a comprising carbon atom can comprise 2-pyridine radicals, 8-quinolyl, 3-quinolyl etc. specifically.

Described aryl alkyl can comprise benzyl etc. specifically.

The acyl group of the described 1-7 of a comprising carbon atom can comprise for example acetyl group, benzoyl, propiono etc. specifically.

In addition, the bivalent aromatic hydrocarbon group of the described 6-25 of a comprising carbon atom can comprise the bivalent aromatic hydrocarbon group that following structural formula (7)-(18) are represented specifically.

The divalent heterocyclic group of the described 5-10 of a comprising carbon atom is with the divalent heterocycle shown in following structural formula (19)-(24) specifically.

In above-mentioned general formula (1), R ¹In the preferably following group any one: methyl, ethyl, the tert-butyl group, phenyl, 4-xenyl and 1-naphthyl.

In above-mentioned general formula (1), R ²Be preferably the hydrogen or the tert-butyl group.Perhaps R ²Preferably has the structure shown in the general formula (2), wherein Ar ¹, Ar ², Ar ³Have respectively and Ar with X ⁴, Ar ⁵, Ar ⁶The substituting group identical with Y.Work as Ar ¹, Ar ², Ar ³Have respectively and Ar with X ⁴, Ar ⁵, Ar ⁶Identical with Y substituent the time because described identical substituting group can with carbazole skeleton bonding, so syntheticly be easy to carry out.

In addition, in the carbazole derivates of the structure with general formula (1) expression, the carbazole derivates with the structure shown in the general formula (3) can synthesize at an easy rate, is preferred therefore.

In addition, in general formula (3), R ²The preferably hydrogen or the tert-butyl group.Perhaps R ²Preferably has the structure shown in the general formula (4), wherein Ar ¹And Ar ²Preferably has identical structure.

Specifically, the carbazole derivates that more preferably has the structure of general formula (5) expression.

In addition, in general formula (5), R ²The preferably hydrogen or the tert-butyl group, perhaps, R ²The structure that preferably has structural formula (6).

In addition, more preferably use carbazole derivates with the structure shown in the following general formula (103):

R wherein ¹During expression is following any one: hydrogen, comprise the alkyl of 1-6 carbon atom, comprise the aryl of 6-25 carbon atom, comprise the heteroaryl of 5-9 carbon atom, aryl alkyl and comprise the acyl group of 1-7 carbon atom;

R ²During expression is following any one: hydrogen comprises the alkyl and the represented substituting group of structural formula (104) of 1-6 carbon atom.

Preferably transition metal is used as contained inorganic compound in the described ground floor 111.Specifically, can use for example titanium dioxide, vanadium oxide, molybdenum oxide, tungsten oxide, rheium oxide, ruthenium-oxide, chromium oxide, zirconia, hafnium oxide, tantalum oxide, silver oxide etc.Described various transition metal oxide is to show the material that electronics is accepted character and can be accepted electronics and generation hole from the carbazole derivates of described general formula (1) expression with respect to the carbazole derivates shown in the general formula (1).Because the carbazole derivates of described general formula (1) expression has splendid hole transport character, so carbazole derivates can transmit the hole of generation effectively.Thereby can reduce driving voltage of light-emitting.

In addition, because charge carrier is ground floor 111 inner generations, so ground floor 111 has high conductivity.Therefore, when the thickness of ground floor 111 increased, the increase of driving voltage can be suppressed.Therefore, can suppress the short circuit of light-emitting component, can improve colorimetric purity and can not increase driving voltage by optical design.

In addition, owing to light-emitting component of the present invention not only includes organic compounds but also comprises inorganic compound, so these light-emitting components have long wearing and splendid thermal endurance.

The second layer 112 has lighting function.The described second layer 112 can comprise independent layer or a plurality of layer.For example, the second layer 112 can combine by the various layers with various functions that will be except luminescent layer and forms, and these various layers with various functions for example are electron injecting layer, electron transfer layer, hole blocking layer, hole transmission layer and hole injection layer.The described second layer 112 also can use known material to form.Can use small molecular mass material and high molecular weight material.In addition, the organic compound material that can use organic compound material and part to comprise inorganic compound forms the described second layer 112.

In addition, in this execution mode, because described ground floor 111 is as hole injection layer, so can not provide hole injection layer in the second layer 112.

Can be with known material as the material that character is injected in the hole that has that is used for forming described hole injection layer.Specifically, preferably use vanadium oxide, molybdenum oxide, the metal oxide of ruthenium-oxide and aluminium oxide and so on.In addition,, porphyrin compound can be used effectively, phthalocyanine (abbreviation: H can be used for the situation of organic compound ₂-Pc), copper phthalocyanine (abbreviation: Cu-Pc) etc.The electroconductive polymer that can comprise easy generation chemical doping quantizes compound.Specifically, can use the polystyrolsulfon acid ester that mixed (polystyrene sulfonate) (abbreviation: PSS), polyaniline (abbreviation: PAni) (abridge: PEDOT) etc. by the poly-ethylidene dioxy base thiophene of etc.ing.

Can use known material as the material that is used for forming hole transmission layer with hole transport character.Aromatic amine (promptly comprising phenyl ring-nitrogen key) compound is a preferable material.The material that is widely used for forming hole transmission layer can comprise for example 4,4 '-two [N-(3-aminomethyl phenyl)-N-phenyl-amino]-biphenyl (abbreviation: TPD); (abbreviation: NPB), it is the derivative of TPD to 4,4 '-two [N-(1-naphthyl)-N-phenyl-amino]-biphenyl; The star burst aromatic amine compound, for example 4,4 ', 4 " three (N, N-diphenyl-amino)-triphenylamines (abbreviation: TDATA) and 4,4 ', 4 " three [N-(3-aminomethyl phenyl)-N-phenyl-amino]-triphenylamines (abbreviations: MTDATA).

Described luminescent layer comprises the material with luminosity.The material that has luminosity in this article is the material that has splendid luminous efficiency and can launch the light with predetermined wavelength.Although to the not special restriction of luminescent layer, in described luminescent layer, the material that preferably has luminosity be dispersed in use energy gap greater than this material of energy gap with material of luminosity make layer in.This layer can prevent described light quencher owing to the concentration of this material with material emission of luminosity.In addition, described energy gap is represented the energy gap between lumo energy and the HOMO energy level.

To the described not special restriction of the material with luminosity that is used for forming luminescent layer.Can use the material that has splendid luminous efficiency, can launch the light of predetermined emission wavelength.For example, for red-emitting, have the material of the emission spectrum of 600-680 nanometer peak value below can using: 4-dicyano methylene-2-isopropyl-6-[2-(1,1,7,7-tetramethyl julolidine-9-yl) vinyl]-(abbreviation: DCJTI) of 4H-pyrans; 4-dicyano methylene-2-methyl-6-[2-(1,1,7,7-tetramethyl julolidine-9-yl) vinyl]-(abbreviation: DCJT) of 4H-pyrans; The 4-dicyano methylene-2-tert-butyl group-6-[2-(1,1,7,7-tetramethyl julolidine-9-yl) vinyl]-(abbreviation: DCJTB) of 4H-pyrans; Periflanthene; 2,5-dicyano-1,4-two [2-(10-methoxyl group-1,1,7,7-tetramethyl julolidine-9-yl) vinyl] benzene; Or the like.For transmitting green light, can use the material of emission spectrum with 500-550 nanometer peak value, N for example, N '-dimethyl quinaldine ketone (quinacridon) (abbreviation: DMQd), the coumarin 6, (abbreviation: Alq of cumarin 545T and three (oxine) aluminium ₃).In order to launch blue light, can use the material of emission spectrum with 420-500 nanometer peak value: 9,10-two (2-naphthyl)-tert-butyl anthracene (abbreviation: t-BuDNA); 9,9 '-dianthranide; 9, (the abbreviation: DPA) of 10-diphenylanthrancene; 9, (the abbreviation: DNA) of 10-two (2-naphthyl) anthracene; (the abbreviation: BGaq) of two (2-methyl-oxine)-4-phenyl phenol-galliums; (the abbreviation: BAlq) of two (2-methyl-oxine)-4-phenyl phenol aluminium; Or the like.Except above-mentioned fluorescent material, following phosphorus can be used as the material with luminosity: pyridine carboxylic acid two [2-(3,5-two (trifluoromethyl) phenyl) pyridine-N, C ²'] iridium (III) (abbreviation: Ir (CF ₃Ppy) ₂(pic)); Acetopyruvic acid two [2-(4, the 6-difluorophenyl) pyridine (pyridinato)-N, C ²'] iridium (III) (abbreviation: FIr (acac)); Pyridine carboxylic acid two [2-(4, the 6-difluorophenyl) pyridine-N, C ²'] iridium (III) (FIr (pic)); Three (2-phenylpyridine-N, C ²') iridium (abbreviation: Ir (ppy) ₃); Or the like.

To being used for disperseing having the not special restriction of material of the material of luminosity.For example, can use anthracene derivant, for example 9,10-two (2-naphthyl)-2-tert-butyl anthracene (abbreviation: t-BuDNA); Carbazole derivates, for example 4,4 '-two (N-carbazyl) biphenyl (abbreviation: CBP); Metal complex, for example two [2-(2-hydroxy phenyl) pyridine] zinc (abbreviation: Znpp ₂) and two [2-(2-hydroxy phenyl) benzoxazole (benzoxazolato)] zinc (abbreviation: ZnBOX) etc.

Can specifically, can use representational metal complex with known material as the material that is used for forming electron transfer layer, for example three (oxine) aluminium (abbreviation: Alq with electric transmission character ₃); (the abbreviation: Almq of three (4-methyl-oxine) aluminium ₃); (the abbreviation: BeBq of two (10-hydroxy benzo [h]-oxyquinoline) beryllium ₂); (the abbreviation: BAlq) of two (2-methyl-oxines)-(4-hydroxyl-biphenyl)-aluminium; (the abbreviation: Zn (BOX) of two [2-(2-hydroxy phenyl)-benzoxazoles] zinc ₂); And two [2-(2-hydroxy phenyl)-benzothiazole (benzothiazolate)] zinc (abbreviation: Zn (BTZ) ₂).Also can preferably use hydrocarbon compound in addition, for example 9,10-diphenylanthrancene and 4,4 '-two (2, the 2-diphenylacetylene) biphenyl.Also can use triazole derivative in addition, 3-(4-tert-butyl-phenyl)-4-(4-ethylphenyl)-5-(4-xenyl)-1,2 for example, 4-triazole; Phenanthroline derivative, for example bathophenanthroline and bathocuproine.

Can be with known material as the material that electronics injects character that has that is used for forming electron injecting layer.Specifically, preferably alkali metal salt and alkali salt, for example calcirm-fluoride, lithium fluoride, lithia and lithium chloride.Perhaps can use for example three (oxine) aluminium (abbreviation: Alq ₃) and bathocuproine (abbreviation: BCP) etc. and so on, wherein added material dopant compound, that have electric transmission character of lithium and so on.

In this execution mode, only in luminescent layer, added luminous contributive dopant, only observe light by the dopant emission.But the dopant that for example can in electron transfer layer or hole transmission layer, add the different light of emission.In the time of the complementary colors of the color of the light of luminescent layer emission and the light of the dopant emission of the layer that adds other, just can launch white light.

By changing the kind of first electrode 101 and second electrode 102, the light-emitting component of this execution mode has different variations.Fig. 3 A-3C and Fig. 4 A-4C have shown the schematic diagram of these variations.In addition, the numbering of using among Fig. 1 also is used for Fig. 3 A-3C and Fig. 4 A-4C.In addition, numbering 100 expressions are used for supporting the substrate of light-emitting component of the present invention.

Fig. 3 A-3C has shown an example separately, wherein comprises the ground floor 111 and the second layer 112 that comprise in the layer 103 of luminescent substance and is layered in above the described substrate 100 according to this order.In the case, when first electrode 101 is to use that the material with light transmission forms, when second electrode 102 is to use the have light shield character material of (being light reflectance properties specifically) to form, light can see through substrate 100 emissions as described in Fig. 3 A.In addition, have light shield character when first electrode 101 the is to use material of (being light reflectance properties specifically) forms, second electrode 102 is to use the material with light transmission to form, and then light can be as seeing through the opposite side emission of substrate 100 as described in Fig. 3 B.In addition, when first electrode 101 and second electrode 102 all were to use the material with light transmission to form, light can be simultaneously to substrate 100 and the emission of substrate opposite side shown in Fig. 3 C.

Fig. 4 A-4C has shown an example separately, the layer that wherein comprises luminescent substance in 103 the contained second layer 112 and ground floor 111 according to this sequential cascade on described substrate 100.In the case, have light shield character when first electrode 101 is to use the material of (being light reflectance properties specifically) forms, when second electrode 102 is to use the material with light transmission to form, light can see through substrate 100 emissions as described in Fig. 4 A.In addition, form when first electrode 101 is to use that material with light transmission forms, second electrode 102 to be to use to have light shield character the material of (being light reflectance properties specifically), then light can be as seeing through the opposite side emission of substrate 100 as described in Fig. 4 B.In addition, when first electrode 101 and second electrode 102 all are to use the material with light transmission to form, light can be shown in Fig. 4 C simultaneously to the opposite side emission of substrate 100 and substrate 100.

In the light-emitting component of present embodiment, because described ground floor 111 comprises the carbazole derivates of general formula (1) expression and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1), ground floor 111 shows splendid hole and injects character and hole transport character.Therefore, even when the thickness of described ground floor 111 increases, the increase of driving voltage also can be suppressed.Therefore, can in the increase that suppresses driving voltage, prevent the light-emitting component short circuit.In addition, because colorimetric purity obtains raising by optical design, so the thickness of ground floor 111 can freely be set.

In addition, when shown in Fig. 4 A-4C, the second layer 112 and ground floor 111 form on second electrode 102 successively, when forming first electrode 101 thereon by sputter then, can avoid wherein existing the second layer 112 of the material with luminosity to damage.

[execution mode 2]

In execution mode 1, the described carbazole derivates that comprises general formula (1) expression and show electronics with respect to the carbazole derivates shown in the general formula (1) to accept the layer of the inorganic compound of character be contacted with anode.In addition, execution mode 2 will be described a kind of situation, in the case, comprise the carbazole derivates of general formula (1) expression and show the layer of inorganic compound that electronics accepts character between anode and luminescent layer with respect to the carbazole derivates shown in the general formula (1), it does not contact with anode.

An example that will show the structure of light-emitting component of the present invention among Fig. 2.The layer 303 that comprises luminescent substance is set between first electrode 301 and second electrode 302.The described layer that comprises luminescent substance 303 comprises a kind of structure, and wherein ground floor 311, the second layer 312 and the 3rd layer 313 are stacked according to this order.

Ground floor 311 has the function of injected hole.Can be with known material as the material that character is injected in the hole that has that is used for forming hole injection layer.Specifically, can use the material shown in the execution mode 1.

The described second layer 312 comprises the carbazole derivates of general formula (1) expression and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1).The structure identical with ground floor shown in the execution mode 1 111 can be used for the described second layer 312.

Described the 3rd layer 313 has luminous function.The structure identical with the second layer 112 described in the execution mode 1 can be used for the 3rd layer 313.

By using said structure, even when the thickness of the second layer 312 increases, also can suppress the increase of driving voltage.Therefore, can prevent the short circuit of light-emitting component, can improve colorimetric purity, can also suppress the increase of driving voltage simultaneously by optical adjustment.

[execution mode 3]

In this execution mode, will have the light-emitting component that is different from light emitting element structure in the execution mode 1 with reference to Fig. 5 description.

Fig. 5 has shown an example of light emitting element structure of the present invention.The layer 203 that comprises luminescent substance is set between first electrode 201 and second electrode 202.The described layer 203 that comprises luminescent substance comprises ground floor 211,212, the three layers 213 and the 4th layers 214 of the second layers, and these layers are according to described sequential cascade.

Light-emitting component in this execution mode operates according to following mode.Described light-emitting component is being applied voltage, and when making the electromotive force of the electrode 201 of winning be higher than the electromotive force of second electrode 202, second electrode 202 is injected from the 4th layer 214 in the hole, and electronics injects the described second layer 212 from the 3rd layer 213 simultaneously.In addition, ground floor 211 is injected from first electrode 201 in the hole, and the second layer 212 is injected from ground floor 211 in the hole.From ground floor 211 injected holes with from the 3rd layer of 213 injected electrons combination again the second layer 212, make material be excited with luminosity.Then, luminescent substance is luminous when excitation state is returned ground state.

Can with execution mode 1 in first electrode 101, second electrode 102, ground floor 111 structure identical with the second layer 112 be used for first electrode 201, the second electrodes 202, ground floor 211 and the second layer 212.That is to say that described first electrode can use known material to form.Described ground floor 211 comprises the carbazole derivates of general formula (1) expression and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1).The described second layer 212 comprises the material with luminosity.

Described the 3rd layer 213 is the layers that comprise the material with the donor level that produces electronics.For example, can comprise: comprise material and show layer to the material of electronic property with respect to described material with electric transmission character with electric transmission character for the 3rd layer.Material with electric transmission character as herein described is the material that electric transmission character is better than hole transport character.Described material with electric transmission character is had no particular limits.For example can comprise: metal complex, for example three (oxine) aluminium (abbreviation: Alq ₃); (the abbreviation: Almq of three (4-methyl-oxine) aluminium ₃); (the abbreviation: BeBq of two (10-hydroxy benzo [h]-oxyquinoline) beryllium ₂); (the abbreviation: BAlq) of two (2-methyl-oxines)-(4-phenyl phenol)-aluminium; (the abbreviation: Zn (BOX) of two [2-(2-hydroxy phenyl)-benzoxazoles] zinc ₂); And two [2-(2-hydroxy phenyl)-benzothiazole (benzothiazolate)] zinc (abbreviation: Zn (BTZ) ₂).Exception can be used as the material with electric transmission character with following material: 2-(4-xenyl)-5-(4-tert-butyl-phenyl)-1, the 3, (abbreviation: PBD) of 4-oxadiazole; 1, (the abbreviation: OXD-7) of 3-two [5-(to tert-butyl-phenyl)-1,3,4-oxadiazole-2-yl] benzene; 3-(4-tert-butyl-phenyl)-4-phenyl-5-(4-xenyl)-1,2, (the abbreviation: TAZ) of 4-triazole; 3-(4-tert-butyl-phenyl)-4-(4-ethylphenyl)-5-(4-xenyl)-1,2, (the abbreviation: p-EtTAZ) of 4-triazole; Bathophenanthroline (abbreviation: BPhen); Bathocuproine (abbreviation: BCP); Or the like.Describedly show material to electronics with respect to material there is no particular restriction with electric transmission character.For example, can use alkali metal, for example lithium and caesium; Alkaline-earth metal, for example magnesium and calcium; Rare earth metal, for example erbium and ytterbium etc.In addition, also can the material of alkali metal oxide and alkaline earth oxide will be selected from, for example lithia (Li ₂O), calcium oxide (CaO), sodium oxide molybdena (Na ₂O), potassium oxide (K ₂O) and magnesium oxide (MgO) as show material with respect to material to electronics with electric transmission character.In addition, described alkali metal oxide, alkaline earth oxide etc. have low activity, so they can be handled at an easy rate.Described the 3rd layer 213 preferably comprises with respect to the material with electric transmission character and shows material to electronics, make that the material that shows to electronics is 0.5-2 with the mol ratio with material (promptly showing the material to electronics with respect to the material with electric transmission character (material with electric transmission character)) of electric transmission character.In addition, described the 3rd layer 213 can comprise the n N-type semiconductor N, for example zinc oxide, zinc sulphide, arsenic zinc, tin oxide and titanium dioxide.

Described the 4th layer 214 comprises the carbazole derivates of general formula (1) expression and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1).Therefore, the inorganic compound that provides in the execution mode 1 can be used for described the 4th layer of inorganic compound that comprises.In addition, can with ground floor 211 contained identical inorganic compounds, perhaps with ground floor 211 in contained different inorganic compound as the inorganic compound that comprises in described the 4th layer 214.

By using said structure, as shown in Figure 5, when light-emitting component was applied voltage, near the electronics transmission interface between the 3rd layer 213 and the 4th layers 214 made to produce electronics and hole.Described the 3rd layer 213 with electric transmission to the second layer 212, simultaneously the 4th layer 214 with hole transport to second electrode 202.That is to say that the 3rd layer 213 and the 4th layers 214 combination generates layer as charge carrier.In addition, we can say that described the 4th layer 214 has the function of cavity conveying to second electrode 202.In addition, when another second layer and another the 3rd layer also are layered between the 4th layer of 214 and second electrode 202, can form the multi-photon light-emitting component.

In addition, because the carbazole derivates of ground floor 211 and the expression of the 4th layer of 214 each self-contained general formula (1) and show the inorganic compound that electronics is accepted character, so ground floor and the 4th layer have extremely strong hole and inject and transport property with respect to the carbazole derivates shown in the general formula (1).Therefore, even the thickness of ground floor 211 and the 4th layer 214 increases, the increase of driving voltage also can be suppressed.Therefore, in the light-emitting component of this execution mode, the thickness of ground floor 211 and the 4th layer 214 can enlarge markedly.That is to say, can increase first electrode and second distance between electrodes.In addition, can prevent the short circuit of light-emitting component effectively.In addition, in order to improve colorimetric purity by optical design, the layer thickness of the second layer 212 both sides can freely be set.In addition, when first electrode 201 or second electrode 202 are after formation comprises the layer 203 of luminescent substance, when forming, can reduce the destruction of the second layer 212 that existence is wherein had the material of luminosity by sputter.In addition, form ground floor 211 and the 4th layer 214 by using identical materials, the layer that comprises layer 203 both sides of luminescent substance will use identical materials to form, and expection has and suppresses the effect that stress twists.

In addition, in the light-emitting component of this execution mode, by changing the kind of first electrode 201 and second electrode 202, light-emitting component has many variations.Fig. 6 A-6C and Fig. 7 A-7C have shown the schematic diagram of these variations.The used numbering of Fig. 5 also is used for Fig. 6 A-6C and Fig. 7 A-7C.Numbering 200 expressions are used for supporting the substrate of light-emitting component of the present invention.

Fig. 6 A-6C has shown an example separately, and the layer 203 that wherein comprises luminescent substance comprises ground floor 211,212, the three layers 213 and the 4th layers 214 of the second layers, and these layers are stacked from substrate 200 sides according to this order.In the case, when first electrode 201 uses the material with light transmission to form and second electrode 202 when using the material with light shield character (specifically, light reflectance properties) to form, light can see through substrate 200 emissions as shown in Figure 6A.When first electrode 201 is to use the have light shield material of (specifically, light reflectance properties) to form and second electrode 202 when being formed by the material with light transmission, light can emit by the opposite side through substrate 200 shown in Fig. 6 B.In addition, when first electrode 201 and second electrode 202 all were to use the material with light transmission to form, light can see through substrate 200 and substrate simultaneously shown in Fig. 6 C opposite side emitted.

Fig. 7 A-7C has shown an example separately, and the layer 203 that wherein comprises luminescent substance comprises the 4th layer 214, the three layers 213, the second layer 212 and ground floor 211, and these layers are stacked from substrate 200 sides according to this order.In the case, when first electrode 201 uses the material with light shield character (specifically, light reflectance properties) to form and second electrode 202 when using the material with light transmission to form, light can see through substrate 200 emissions shown in Fig. 7 A.When first electrode 201 is to use the material with light transmission to form and second electrode 202 when being formed by the material with light shield (specifically, light reflectance properties), light can see through substrate 200 shown in Fig. 7 B opposite side emit.In addition, when first electrode 201 and second electrode 202 all were to use the material with light transmission to form, light can see through substrate 200 and substrate 200 simultaneously shown in Fig. 7 C opposite side emitted.

Perhaps as shown in figure 37, the layer that comprises material shown in Figure 5 and comprise the carbazole derivates of general formula (1) expression and show electronics and accept the position of layer of the inorganic compound of character and can change with the donor level that can produce electronics with respect to the carbazole derivates shown in the general formula (1).Figure 37 has shown an example, and the layer 703 that wherein comprises luminescent substance comprises ground floor 711, the second layer 712, the 3rd layer 713 and the 4th layers 714, and these layers are stacked between first electrode 701 and second electrode 702 according to this order.Described ground floor 711 can use the material with the donor level that can produce electronics to form, can use the carbazole derivates of general formula (1) expression for the 3rd layer 713 and show the inorganic compound formation that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1), the material that can use to have the donor level that can produce electronics for the 4th layer 714 forms.In the case, owing to comprise the carbazole derivates of general formula (1) expression for the 3rd layer 713 and show the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1), so the 3rd layer 713 has splendid hole transport character.Therefore, described driving voltage of light-emitting can obtain to reduce.In addition, in order to improve colorimetric purity by optical design, the 3rd layer 713 thickness can freely be set.

[execution mode 4]

In this execution mode, the luminescent device that comprises light-emitting component of the present invention will be described.

In this execution mode, the luminescent device that comprises light-emitting component of the present invention in the pixel portion is described with reference to Fig. 8 A and 8B.Fig. 8 A is the vertical view of this luminescent device, and Fig. 8 B is along the A-A ' of Fig. 8 A and the sectional view of B-B '.The represented numbering 601 of dotted line has shown driving circuit section (source signal line drive circuit); 602, pixel portion; And 603, driving circuit section (gate signal line drive circuit).In addition, numbering 604 has shown hermetic sealing substrate, numbering 605 expression encapsulants.The inside that sealed material 605 surrounds is space 607.

Lead-in wire 608 is to be used for circuit to source signal line drive circuit 601 and gate signal line drive circuit 603 input signals.Lead-in wire 608 is from FPC (flexible printer circuit) 609 receiving video signals, clock signal, enabling signal and reset signal as outside input terminal.Although only shown FPC among Fig. 8 A, printed substrate (PWB) can be linked to each other with FPC.Luminescent device in this specification not only comprises the main body of luminescent device, but also comprises FPC or the FPC that links to each other with PWB.

With reference to Fig. 8 B cross section structure is described below.Driving circuit section and pixel portion form on device substrate 610.Only shown among Fig. 8 B as the source signal line drive circuit 601 of a described drive circuit part and a pixel in the described pixel portion 602.

The cmos circuit that wherein is combined with n-channel TFT 623 and p-channel TFT 624 is provided in described source signal line drive circuit 601.In addition, known cmos circuit, PMOS circuit or nmos circuit can be used to form among the TFT of drive circuit.Although described drive circuit is to be incorporated on the device substrate of present embodiment, the invention is not restricted to this structure.Perhaps can provide drive circuit in described device substrate outside.

Pixel portion 602 comprises a plurality of pixels, and these pixels comprise switching TFT 611, Current Control TFT612 and first electrode 613 that is electrically connected with the drain electrode of Current Control TFT612 separately.Formed the edge that insulator 614 covers first electrode 613.Use the positive light-sensitive acrylic resin film to form insulator 614 in this specification.

In addition, make the upper rim of described insulator 614 or the curved surface that lower limb partly has certain radian, cover to improve.For example, when using the positive light-sensitive acrylic resin, the top of insulator 614 is become have the certain curvature radius curved surface of (0.2-3 micron) as the material of insulator 614.In addition, can use a kind of formation insulator 614 in the following light-sensitive material: be insoluble to negative light-sensitive acryhic material in the etchant by photoirradiation, and be dissolved in positive light-sensitive acryhic material in the etchant by photoirradiation.

On first electrode 613, formed layer 616 and second electrode 617 that comprises luminescent substance.The material that preferred herein use has big work function forms first electrode 613 as anode.For example can use the monofilm of tin indium oxide (hereinafter being called ITO) film, siliceous indium oxide tin film, the indium oxide film that comprises the zinc oxide of 2-20 weight %, titanium nitride film, chromium film, tungsten film, Zn film and Pt film and so on.Can also use the lamination that comprises titanium nitride film and mainly contain the film of aluminium in addition, and comprise titanium nitride film, mainly contain the film of aluminium and the three-decker of titanium nitride film etc.In addition, when using lamination to form first electrode 613, it has lower impedance as lead-in wire, can obtain desirable ohmic contact.This first electrode can be used as anode in addition.

The described layer 616 that comprises luminescent substance is to form by known method, and described known method is an evaporation of for example using evaporation mask to carry out, ink-jet method and spin-coating method etc.The described layer 616 that comprises luminescent substance comprises the carbazole derivates that contains general formula (1) expression and shows the layer that electronics is accepted the inorganic compound of character with respect to the carbazole derivates shown in the general formula (1).Can be with small molecular mass material, intermediate molecular weight material (comprising oligomer and dendritic (dendrimer)) or high molecular weight material as other material that comprises in the layer 616 that contains luminescent substance.In addition, often with organic compound with the form of individual layer or lamination as be used to comprise described luminescent substance layer material.Yet in the present invention, the layer 616 that comprises luminescent substance can comprise that also part contains the organic compound of inorganic compound.

In addition, inject character because the carbazole derivates of formula (1) expression has splendid hole, accept the layer of the inorganic compound of character and preferably be arranged on position than the more close anode of luminescent layer so comprise the carbazole derivates of general formula (1) expression and show electronics with respect to the carbazole derivates shown in the general formula (1).

Second electrode 617 is formed on the layer 616 that comprises luminescent substance, as negative electrode.The preferred materials with low work function that use of second electrode 617 form, and described material is for example Al, Mg, Li, Ca, its alloy or its compound, for example MgAg, MgIn, AlLi, CaF ₂, LiF or CaCl2.When being transmitted through in second electrode 617 at the described light that produces in the layer 616 of luminescent substance that comprises, can use the lamination of thin metal film and nesa coating (for example ITO comprises the indium oxide of the zinc oxide of 2-20 weight %, the tin indium oxide that comprises silicon, zinc oxide (ZnO) etc.) to form second electrode 617.

With encapsulant 605 described hermetic sealing substrate 604 and device substrate 610 are glued together, make it have a kind of structure, wherein light-emitting component 618 is arranged in by the space 607 of device substrate 601, hermetic sealing substrate 604 and encapsulant 605 formation of surrounding.Fill this space 607 with filler in addition.Except filling inert gas (for example nitrogen, argon gas etc.) to described space, sometimes also can be to packing matcrial 605 wherein.

The preferred epoxy resin that uses is as described encapsulant 605.More preferably, use the as far as possible little material of the permeability of moisture and oxygen as described encapsulant.Can use following material as described hermetic sealing substrate 604: the plastic base of glass substrate, quartz base plate or FRP (glass fiber-reinforced plastics), PVF (polyvinyl fluoride), Mylar (polyester film), polyester or acrylic resin and so on preparation.

As mentioned above, can make the luminescent device that comprises light-emitting component of the present invention.

Because luminescent device of the present invention comprises the carbazole derivates of general formula (1) expression and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1), thus driving voltage can be reduced, thus reduce power consumption.

In addition, even when ought describedly comprise the thickness of the layer of luminescent substance and increase, the increase of driving voltage also can be suppressed.Therefore can when preventing the light-emitting component short circuit, suppress the rising of driving voltage.In addition, can when improving colorimetric purity, suppress the rising of driving voltage by optical design.Therefore, can make luminescent device with less defective and good color purity.

As mentioned above, light-emitting component has been described wherein by the active luminescent device of transistor driving.Perhaps can using wherein, light-emitting component is the passive luminescent device that drives under the situation of the driving element that transistor and so on is not provided.Figure 10 has shown the perspective view of passive luminescent device constructed in accordance.In Figure 10, between electrode on the substrate 951 952 and electrode 956, provide the layer 955 that comprises luminescent substance.The edge of described electrode 952 covers with insulating barrier 953.On this insulating barrier 953, provide isolation parietal layer 954.The sidewall of described isolation parietal layer 954 tilts, and makes that the distance between two sidewalls narrows down gradually along the direction towards substrate surface.That is to say that the cross section of described isolation parietal layer 954 narrow side directions is trapezoidal, downside (contacting towards the surface of insulating barrier 953 and with insulating barrier 953) is shorter than upside (towards insulating barrier 953 surfaces, and not contacting with insulating barrier 953).By isolation parietal layer 954 is provided by this way, the defective that can prevent light-emitting component because electrostatic charge etc. caused.In addition, the light-emitting component of the application of the invention is formed on the passive luminescent device of running under the low driving voltage, and described passive luminescent device can operate with low energy consumption.

[execution mode 5]

The various electronic application that comprise the luminescent device that uses light-emitting component manufacturing of the present invention will be described in this execution mode.

Use comprises that the electric equipment of the luminescent device manufacturing of light-emitting component of the present invention for example comprises: video camera, for example video camera and digital camera; Glasses type displayer, navigation system, sound reproducer (for example car audio system and audio frequency component device), personal computer, game machine, portable data assistance (mobile computer, portable phone, portable game machine, e-book), image reconstructor (being to play the recording medium of digital universal disc (DVD) and so on and the device of display image specifically) of recording medium etc. is housed.Fig. 9 A-9E has shown the object lesson of these electronic equipments.

Fig. 9 A has shown television receiver, and it comprises shell 9101, supporting base 9102, display part 9103, speaker portion 9104, video input terminal 9105 etc.Use comprises that the luminescent device of light-emitting component of the present invention makes described television receiver as display part 9103.Luminescent device of the present invention uses the electric energy of much less, and has defective still less.In addition, owing to can suppress the rising of driving voltage, can improve the colorimetric purity in the luminescent device, the color rendition acquisition improves, and makes to show meticulous image.And described television receiver comprises that also all are used for the device of display message, for example be used for computer device, be used for receiving the device of TV broadcasting and be used for the device of display ads.

Fig. 9 B has shown PC, and it comprises fuselage 9201, shell 9202, display part 9203, keyboard 9204, external-connected port 9205, indication mouse 9206 etc.Described computer uses the luminescent device that comprises light-emitting component of the present invention to make as display part 9203.Luminescent device of the present invention uses the electric energy of much less, and has defective still less.In addition, owing to can suppress the rising of driving voltage, can improve the colorimetric purity in the luminescent device, the color rendition acquisition improves, and makes to show meticulous image.

Fig. 9 C has shown glasses type displayer, and it comprises fuselage 9301, display part 9302, temples part 9303 etc.Use comprises that the luminescent device of light-emitting component of the present invention is as the described glasses type displayer of display part 9302 manufacturings.Luminescent device of the present invention uses the electric energy of much less, and has defective still less.In addition, owing to can suppress the rising of driving voltage, can improve the colorimetric purity in the luminescent device, the color rendition acquisition improves, and makes to show meticulous image.

Fig. 9 D has shown pocket telephone, and it comprises, and fuselage 9401, shell 9402, display part 9403, audio frequency importation 9404, audio output part divide 9405, operation keys 9406, external-connected port 9407, antenna 9408 etc.Use comprises that the luminescent device of light-emitting component of the present invention is as the described pocket telephone of display part 9403 manufacturings.By in display part 9403, on black matrix, show wrongly written or mispronounced character and suppress the energy consumption of this pocket telephone.Luminescent device of the present invention uses the electric energy of much less, and has defective still less.In addition, owing to can suppress the rising of driving voltage, can improve the colorimetric purity in the luminescent device, the color rendition acquisition improves, and makes to show meticulous image.

Fig. 9 E has shown video camera, and it comprises fuselage 9501, display part 9502, shell 9503, external-connected port 9504, receiver of remote-control sytem 9505, picture receiver 9506, battery 9507, audio frequency importation 9508, operation keys 9509, eyepiece part 9510 etc.Use comprises that the luminescent device of light-emitting component of the present invention is as the described video camera of display part 9502 manufacturings.Luminescent device of the present invention uses the electric energy of much less, and has defective still less.In addition, owing to can suppress the rising of driving voltage, can improve the colorimetric purity in the luminescent device, the color rendition acquisition improves, and makes to show meticulous image.

As mentioned above, comprise that the range of application of luminescent device of light-emitting component formed according to the present invention is extremely wide, described luminescent device can be applicable to various electric equipments field.Comprise by use and the luminescent device of light-emitting component of the present invention can provide electronic equipment with much lower energy consumption, less defects and splendid color rendition.

[execution mode 6]

This execution mode will be described the carbazole derivates of general formula (1) expression.

The object lesson of the carbazole derivates of described general formula (1) expression comprises following structural formula (25)-(102) represented carbazole derivates.Yet, the invention is not restricted to following structural formula.

R in general formula (1) ²When being hydrogen, obtain structural formula (25)-(38) represented carbazole derivates, the R in general formula (1) ²In the time of for alkyl, obtain structural formula (39)-(52) represented carbazole derivates.

In each structure of the carbazole derivates of structural formula (53)-(66) expression, identical substituting group and carbazole skeleton bonding are arranged.These carbazole derivates have the carbazole derivates of structure of different substituents easier to be synthetic than carbazole skeleton bonding wherein.That is to say, work as R ²When having the structure of general formula (2), the Ar in the general formula (1) ¹And Ar ⁴, Ar ²And Ar ⁵, Ar ³And Ar ⁶, and X have identical structure respectively with Y, these identical substituting groups can with carbazole skeleton bonding.Therefore, described carbazole derivates is easier to be synthetic.

Carbazole derivates of the present invention can also comprise halogen shown in structural formula (67)-(75).

X and Y the position of substitution can not only be depicted as the ortho position replacement as structural formula (28), (42) and (56) in general formula (1) and (2), but also the position replaces between can being depicted as structural formula (76)-(78).Also can there be contraposition to replace in addition.

X in general formula (1) and (2) and Y substituting group can be depicted as heterocycle as structural formula (79)-(102).

Can use the method for various reactions as the carbazole derivates shown in the synthetic general formula (1).For example can adopt the method shown in the following reaction mechanism mechanism of reaction (A-1).Yet the method for the carbazole derivates shown in the synthetic general formula (1) is not limited thereto.

[embodiment]

[embodiment 1]

In embodiment 1, represented 3-[N-(4-diphenyl amino the phenyl)-N-phenyl amino of structural formula (28) has been described]-(abbreviation: synthetic method PCzDPA1) of 9-phenyl carbazole.

3-[N-(4-diphenyl amino phenyl)-N-phenyl amino]-the 9-phenyl carbazole

[the 1st step]

The synthetic method of 4-bromine triphenylamine at first will be described.The synthetic course of 4-bromine triphenylamine is seen (A-2).

35.6 gram (200 milli rub) N-bromine succinimides (NBS) are added in 1.5 liters of ethyl acetate solutions of 54.0 grams (220 millis rub) triphenylamine and stir and spend the night.Then this mixture is concentrated into 1 liter, with the mixture of 1 liter 5% aqueous sodium acetate solution washing concentrating.After the washing, this solution further is concentrated into about 50 milliliters, precipitates the white powder that obtains 46.5 grams (productive rate 73%) by adding methyl alcohol.

[the 2nd step]

The synthetic method of N-(4-diphenyl amino phenyl)-N-phenyl amine will be described below.The synthetic course of N-(4-diphenyl amino phenyl)-N-phenyl amine is seen (A-3).

At first in three-neck flask, following component is mixed: 559 milligrams of (6 millis rub) 4-bromine triphenylamines, 345 milligrams of (0.6 milli rubs) two (dibenzalacetone) palladiums (0) and 577 milligrams of (6 millis rub) tert-butoxy sodium, atmosphere in the flask is replaced with nitrogen, then, add 5 milliliters of dry toluenes in the mixture in three-neck flask, outgased about 3 minutes, and in mixture, no longer left bubble.The hexane solution (10%) that adds 559 milligrams of (6 millis rub) aniline, 0.37 milliliter of (1.8 millis rub) tri-butyl phosphine in mixture stirred 5 hours under 80 ℃, nitrogen atmosphere.Prove by thin-film chromatography (TLC) then and have 4-bromine triphenylamine (in the raw material a kind of) in the stirred mixture hardly.Add saturated aqueous sodium chloride to finish reaction, obtain toluene layer and water layer.With about 100 milliliters of ethyl acetate extraction water layers, this ethyl acetate layer is mixed mutually with the toluene layer that obtains before.In this mixed solution, add magnesium sulfate to remove moisture, remove by filter magnesium sulfate then.Concentrated filtrate uses 1: 20 solvent of ethyl acetate and hexane then, carries out purifying by silicagel column.After the purifying, further concentrate, the object material after concentrating adds hexane.Precipitate object with supersonic wave cleaning machine then.When making precipitation, concentrating and precipitating makes 700 milligrams of (productive rate 42%) cream-coloured powders once more.

[the 3rd step]

The synthetic method of 3-iodo-9-phenyl carbazole will be described below.The synthetic course of N-phenyl-3-iodine carbazole is seen (A-4).

4.9 grams (20 millis rub) N-phenyl carbazole is dissolved in 100 milliliters of glacial acetic acid, to wherein slowly adding N-iodine succinimide.This mixture at room temperature stirs and spends the night then.After beginning to react 2.5 hours, it is muddy that this mixture begins to become.3.5 after hour, occur the light orange precipitation that suspends in the solution.This suspension is splashed in 300 milliliters of saturated aqueous sodium chloride, make shallow orange red-the block object of pink colour.This block body and function water cleans three times, adds 200 milliliters of ethyl acetate then and dissolves this bulk object, successively cleans this solution with sodium acid carbonate and water then.Add magnesium sulfate to remove moisture, by removing by filter magnesium sulfate.In the solution that makes, add hexane,, make 5 gram (productive rate 68%) white powders by heating this mixture and carrying out recrystallization.

Perhaps also can synthesize 3-iodo-9-phenyl carbazole by the following method.24.3 grams (100 millis rub) N-phenyl carbazole is dissolved in 600 milliliters of glacial acetic acid, and to wherein slowly adding 22.5 grams (100 millis rub) N-iodine succinimide, this mixture at room temperature stirs and spends the night then.After the reaction beginning 2.5 hours, it is muddy that this mixture becomes.3.5 after hour, occur the light orange precipitation that suspends in this solution.Filter this suspension.The material that filters out washs with sodium acid carbonate, washes with water then.At last with methanol wash filter material, obtain 24.7 the gram (productive rate 67%) white powders.

[the 4th step]

3-[N-(4-diphenyl amino phenyl)-N-phenyl amino will be described below]-(abbreviation: synthetic method PCzDPA1) of 9-phenyl carbazole.The synthetic course of PCzDPA1 is seen (A-5).

Specifically, in three-neck flask, 627.64 milligrams of (1.7 millis rub) 3-iodo-9-phenyl carbazoles, 672.86 milligrams of (2.0 millis rub) N-(4-diphenyl amino phenyl)-N-phenyl amine, 57.5 milligrams of (0.1 milli rubs) two (dibenzalacetone) palladiums and 335 milligrams of (3.5 millis rub) tert-butoxy sodium are mixed.Atmosphere in the three-neck flask is replaced with nitrogen.Add 3.5 milliliters of dry toluenes in the mixture in three-neck flask, carry out 3 minutes degassing operation.Add 0.4 milliliter of tri-butyl phosphine (10 weight % hexane solution) then in mixture, slight then this flask of jolting up and down mixes wherein material.This material added thermal agitation 10 minutes at 80 ℃ under 200 watts microwave radiation.After the reaction, add saturated aqueous sodium chloride, use 100 milliliters of ethyl acetate extraction products.Also in product, add magnesium sulfate in addition to remove moisture, then by removing by filter magnesium sulfate.Filtrate is concentrated, use 1: 1 ethyl acetate and hexane solvent, by the silicagel column purifying.Add hexane in the solution behind purifying, carry out recrystallization and make 650 milligrams of (productive rate 65%) cream-coloured powders.The NMR data are as follows. ¹H-NMR(300MHz，DMSO-d)；δ＝6.89-7.05(m，13H)，7.21-7.28(m，9H)，7.32-7.43(m，3H)，7.50-7.69(m，5H)，8.02(s，1H)，8.14(d，j＝7.2，1H)。In addition, Figure 13 has shown ¹H-NMR figure, Figure 14 have shown the enlarged drawing in the 6.0-9.0ppm scope among Figure 13.

The PCzDPA1 that makes has been carried out thermogravimetric-differential thermal analysis (TG-DTA).The results are shown in Figure 17, in Figure 17, the longitudinal axis in left side is represented heat (microvolt), and the longitudinal axis on right side is represented weight (%, the weight of initial measurement is designated as 100%).In addition, the transverse axis of downside represent temperature (℃).(SeikoInstruments Inc. makes, and TG/DTA-320) measures, under nitrogen atmosphere, by with 10 ℃/minute heating rate thermophysical property being estimated to use thermogravimetric/differential thermal analyzer.As a result, by the relation between weight and the temperature (thermogravimetric analysis) as can be known, under condition of normal pressure, 95% or the temperature when following that weight is reduced to starting weight are 375 ℃.In addition, (As One Corporation makes, and observing fusing point when ATM-01) measuring is 185-186 ℃ using the fusing point instrument.

Although described the synthetic 3-[N-(4-diphenyl amino phenyl) of use 3-iodo-9-phenyl carbazole-N-phenyl amino in this embodiment]-(abbreviation: method PCzDPA1) of 9-phenyl carbazole.But when using 3-bromo-9-phenyl carbazole, also can synthesize PCzDPA1.3-bromo-9-phenyl carbazole is more cheap than 3-iodo-9-phenyl carbazole.On the other hand, time when the reaction time ratio when using 3-iodo-9-phenyl carbazole uses 3-bromo-9-phenyl carbazole is short, even make catalyst (being two (dibenzalacetone) palladium (0) in the above-mentioned reaction mechanism mechanism of reaction) amount and part (being tri-butyl phosphine in above-mentioned reaction mileage) amount be reduced in about 1/10, reaction still can be carried out.

[embodiment 2]

The synthetic method that is used for carbazole derivates of the present invention hereinafter will be

described.In embodiment

2,3 shown in will description scheme formula 56,6-two [N-(4-diphenyl amino phenyl)-N-phenyl amino]-9-phenyl carbazole (abbreviation: synthetic embodiment PCzDPA2).

3,6-two [N-(4-diphenyl amino phenyl)-N-phenyl amino]-9-phenyl carbazole

[the 1st step]

Below describe 3, the synthetic method of 6-two iodo-9-phenyl carbazoles.3, the synthetic course of 6-two iodo-9-phenyl carbazoles is shown in (A-6).

Specifically, 24.3 grams (100 millis rub) N-phenyl carbazole is dissolved in 700 milliliters of glacial acetic acid, to wherein adding 44.9 grams (200 millis rub) N-iodine succinimide lentamente.This mixture at room temperature stirs and spends the night then.The reaction beginning is this mixture change muddiness after 2.5 hours, begins precipitation after 3.5 hours.The precipitation that filtration makes is suspended in it in sodium bicarbonate solution and neutralizes.Filtration product and water clean, and drying makes 47 gram white powders (productive rate 95%) then.

[the 2nd step]

Describe below 3,6-two [N-(4-diphenyl amino phenyl)-N-phenyl amino]-9-phenyl carbazole (abbreviation: synthetic method PCzDPA2).(A-7) the synthetic course that has shown PCzDPA2 in.

Specifically, in three-neck flask, restrain (11 millis rub) 3 with 5.44,6-two iodo-9-phenyl carbazoles, 9 grams (27 millis rub) N-(4-diphenyl amino phenyl)-N-phenyl amine, 500 milligrams of (0.87 milli rubs) two (dibenzalacetone) palladiums and 3.35 milligrams of (35 millis rub) tert-butoxy sodium mix, then with the atmosphere in the nitrogen replacement three-neck flask.Add 100 milliliters of dry toluenes then in the mixture in three-neck flask, outgased then 3 minutes.Add 4 milliliters of tri-butyl phosphines (hexane solutions of 10 weight %) afterwards to this mixture, this mixture stirred 16 hours under 80 ℃, nitrogen atmosphere.After the reaction, add saturated aqueous sodium chloride, with 200 milliliters of ethyl acetate extraction products.In product, add magnesium sulfate to remove moisture.Filter then to remove magnesium sulfate.Concentrated filtrate dropwise adds the filtrate after concentrating in 1: 10 the solvent of ethyl acetate and hexane and suspends.Collect the supernatant of this suspension then.Use 1: 10 the ethyl acetate and the solvent of hexane then, the supernatant of collecting by the silicagel column purifying, and concentrate and make cream-coloured powder.5: 1 the solvent that the insoluble component of suspension is used toluene and hexane carries out purifying by silicagel column, concentrates to make cream-coloured powder.The cream-coloured powder that makes like this is object, and total weight is 6.5 grams (productive rate 75%).The NMR data of this object are as follows. ¹HNMR(300MHz，DMSO-d)；δ＝6.86-6.97(m，26H)，7.18-7.36(m，14H)，7.35(d，j＝9.0，2H)，7.52-7.66(m?5H)，7.99(s，2H)。Figure 15 has shown ¹H NMR figure, Figure 16 have shown the enlarged drawing of 6.0-9.0ppm part among Figure 15.

The PCzDPA2 that makes has been carried out thermogravimetric-differential thermal analysis (TG-DTA).The results are shown in Figure 18, in Figure 18, the longitudinal axis in left side is represented heat (microvolt), and the longitudinal axis on right side is represented weight (%, the weight of initial measurement is designated as 100%).In addition, the transverse axis of downside represent temperature (℃).Use thermogravimetric/differential thermal analyzer (SeikoInstruments Inc. makes, and TG/DTA 320) to measure.Under nitrogen atmosphere, by the thermophysical property of the PCzDPA2 that makes being estimated with 10 ℃/minute heating rate.As a result, by the relation between weight and the temperature (thermogravimetric analysis) as can be known, under condition of normal pressure, 95% or the temperature when following that weight is reduced to starting weight are 460 ℃.In addition, (As One Corporation makes, and observing fusing point when ATM-01) measuring is 173-181 ℃ using the fusing point instrument.

[embodiment 3]

In embodiment 3, will describe the carbazole derivates that comprises general formula (1) expression and show the specific embodiment of layer that electronics is accepted the inorganic compound of character with respect to embodiment 3 described carbazole derivates.Use among the embodiment 2 synthetic by 3 of structural formula (56) expression, 6-two [N-(4-diphenyl amino phenyl)-N-phenyl amino]-9-phenyl carbazole (abbreviation: PCzDPA2) as described carbazole derivates.Use molybdenum oxide as described inorganic compound.

At first glass substrate is fixed on the substrate holder in the vacuum evaporation apparatus.Then PCzDPA2 and molybdenum oxide (VI) are provided to independently independently in the electric resistor heating type evaporation source, by in the air in extracting vacuum evaporation apparatus out, PCzDPA2 and molybdenum oxide carried out coevaporation form the layer that comprises PCzDPA2 and molybdenum oxide.In the case, PCzDPA2 is with the rate of film build evaporation of 0.4 nm/sec, and the evaporation capacity of molybdenum oxide is 1/4 (mass ratio) of PCzDPA2.Therefore, the mol ratio between PCzDPA2 and the molybdenum oxide is about 1: 1.5.In addition, the thickness setting that will comprise the film of PCzDPA2 and molybdenum oxide is 50 nanometers.

The curve C of Figure 11 has shown the absorption spectrum measurement result of the hybrid films that comprises PCzDPA2 and molybdenum oxide that makes like this.As a comparison, also shown the absorption spectrum (curve A) that only contains the film of PCzDPA2 among Figure 11, and the absorption spectrum (curve B) that only contains the film of molybdenum oxide.

As can be seen from Figure 11, the hybrid films represented of curve C shows the absorption (with dashed lines is irised out among the figure) of the new kind that can't find out from the film that only contains PCzDPA2 or the film that only contains molybdenum oxide.This causes owing to electronics transmits between PCzDPA2 and molybdenum oxide, thinks that molybdenum oxide accepts electronics from PCzDPA2, produces the hole in PCzDPA2.

Therefore, in the hybrid films that comprises PCzDPA2 and molybdenum oxide of Xing Chenging, charge carrier produces in inside in this embodiment, therefore can reduce driving voltage of light-emitting.

[embodiment 4]

An example of light-emitting component of the present invention will be described with reference to Figure 12 in embodiment 4.In embodiment 4, a kind of light-emitting component will be described, its PCzDPA2 and conduct that comprises structural formula (56) expression shows the molybdenum oxide that electronics is accepted the inorganic compound of character with respect to PCzDPA2.

Formed the indium oxide tin film that comprises silicon by sputter, as first electrode 401 as anode.

Show the molybdenum oxide that electronics is accepted character by the PCzDPA2 of coevaporation structural formula (56) expression and with respect to PCzDPA2 then, make that the mol ratio of PCzDPA2 and molybdenum oxide is 1: 1, thereby on first electrode, form ground floor 411.The thickness setting of described ground floor 411 is in 120 nanometers.In addition, coevaporation method is a kind of evaporation of evaporating from a plurality of evaporation sources simultaneously.

Next, by vacuum vapor deposition method, use NPB on ground floor 411, to form the hole transmission layer 412 of 10 nanometer thickness.Next, by coevaporation Alq ₃Three (oxine) aluminium that comprises that has formed 40 nanometer thickness with coumarin 6 (is abridged: Alq ₃) and the luminescent layer 413 of coumarin 6.In this execution mode, with Alq ₃The mass ratio of-coumarin 6 is adjusted to 1: 0.005.Like this coumarin 6 is dispersed in Alq ₃In.Next, by vacuum evaporation Alq ₃On luminescent layer, formed the Alq that comprises of 40 nanometer thickness ₃Electron transfer layer 414.Next, on described electron transfer layer, form the electron injecting layer that comprises LiF 415 of 1 nanometer thickness by vacuum evaporation LiF.Then, carry out vacuum evaporation, on described electron injecting layer, form second electrode 402 of 200 nanometer thickness by using aluminium.

As mentioned above, can form the light-emitting component with the layer that comprises PCzDPA2 and molybdenum oxide, wherein molybdenum oxide is to show the inorganic compound that electronics is accepted character with respect to PCzDPA2.Because the light-emitting component of embodiment 4 has the layer (wherein molybdenum oxide is to show the inorganic compound that electronics is accepted character with respect to PCzDPA2) that comprises PCzDPA2 and molybdenum oxide, charge carrier produces in inside, injects and transport property so this light-emitting component has splendid charge carrier.Therefore can reduce the driving voltage of light-emitting of this embodiment.

In addition, because charge carrier produces in inside, described light-emitting component has high conductivity.Therefore, when the thickness of ground floor 411 increased, the rising of driving voltage can be suppressed.Therefore, can prevent short circuit,, under the prerequisite that does not improve driving voltage, improve colorimetric purity by optical design.

In addition, the layer of luminescent substance that comprises the light-emitting component of this execution mode 403 not only includes organic compounds but also comprises inorganic compound, and therefore described light-emitting component has splendid thermal endurance and long wearing.

[embodiment 5]

Use description to a kind of synthetic method of carbazole derivates of the present invention below.In embodiment 5 with the 3-[N-shown in the description scheme formula (33) (4-diphenyl amino phenyl)-N-(1-naphthyl) amino]-the 9-phenyl carbazole (abbreviation: synthetic method PCzTPN1).

[the 1st step]

A kind of synthetic method of N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amine has at first been described.(A-8) the synthetic course that has shown N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amine in.

Specifically, in flask, 3.2 gram (10 milli rub) 4-bromine triphenylamines, 1.4 grams (10 millis rub) 1-amino naphthalenes, 58 milligrams of (0.1 milli rubs) two (dibenzalacetone) palladiums (0) and 3.0 grams (30 rub in the least) tert-butoxy sodium are mixed.Atmosphere in the flask replaces with nitrogen, adds 40 milliliters of anhydrous dimethyl benzene then in the mixture in flask.The mixture that is added with dehydration dimethylbenzene was outgased about 3 minutes, in mixture, no longer leave bubble.In mixture, add 540 milligrams of (1.0 millis rub) 1,1-two (diphenylphosphino) ferrocene, this mixture stirred 6.5 hours under 90 ℃ nitrogen atmosphere.In mixture, add about 300 milliliters of toluene, use florisil (trade name, florisil), aluminium oxide and this mixture of diatomite filtration then.The filtrate water of gained and saturated aqueous sodium chloride washing.Use the dried over mgso organic layer.Product is filtered, concentrate then, use silica gel column chromatography (ratio of toluene and hexane is 3: 7) purifying then.The solution that makes is concentrated, to wherein adding hexane, product is applied ultrasonic wave then.The solid that makes is filtered, make 1.8 gram (productive rate 46%) N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amine white powders.The NMR data of object are as follows. ¹H?NMR(300MHz，DMSO-d)；δ＝6.93-7.00(m，8H)，7.09(d，j＝8.7，2H)，7.23-7.32(m，5H)，7.39(t，j＝7.8，1H)，7.48-7.52(m，3H)，7.86-7.90(m，1H)，8.20-8.23(m，2H). ¹³C?NMR(60MHz，DMSO-d)；δ＝113.2，118.6，120.9，121.7，122.2，122.6，125.0，126.0，126.2，126.6，127.0，128.1，129.3，134.4，139.1，139.6，141.4，147.6。Figure 22 has shown ¹H NMR spectrum, Figure 23 has shown the enlarged drawing of 6.5-8.5ppm part among Figure 22.Figure 24 has shown ¹³C NMR spectrum.

[the 2nd step]

3-[N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amino is described below]-(abbreviation: a kind of synthetic method PCzTPN1) of 9-phenyl carbazole.3-[N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amino has been described (A-9)]-(abbreviation: synthetic course PCzTPN1) of 9-phenyl carbazole.

Mix 740 milligrams of (2.0 millis rub) 3-iodo-9-phenyl carbazoles, 700 milligrams of (1.8 millis rub) N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amine, 12 milligrams of (0.02 milli rubs) two (dibenzalacetone) palladiums and 600 milligrams of (6.0 millis rub) tert-butoxy sodium in flask, the atmosphere in the flask substitutes with nitrogen.In mixture, add 5 milliliters of anhydrous dimethyl benzene, outgased 3 minutes.Add 0.1 milliliter of (0.05 milli rubs) tri-butyl phosphine (hexane solutions of 10 weight %) in mixture, this mixture stirred 5.5 hours under 90 ℃ nitrogen atmosphere.In mixture, add about 100 milliliters toluene, this mixture florisil (trade name, florisil), aluminium oxide and diatomite filtration.The filtrate water of gained and saturated aqueous sodium chloride washing.Use the dried over mgso organic layer.Product is filtered, concentrate then, use silica gel column chromatography (ratio of toluene and hexane is 3: 7) purifying then.The solution that makes is concentrated, to wherein adding hexane, product is applied ultrasonic wave then.Filter, make 500 milligrams of (productive rate 44%) PCzTPN1 yellow powders.The NMR data of object are as follows. ¹H?NMR?(300MHz，DMSO-d)；δ＝6.74(d，j＝8.7，2H)，6.88-7.00(m，8H)，7.16-7.67(m，23H)，7.84(d，j＝8.4，1H)，7.97(d，j＝8.1，1H)，8.02(s，1H)，8.08(t，j＝7.8，2H)。Figure 25 has shown ¹The HNMR spectrum, Figure 26 has shown the enlarged drawing of the 6.0-8.5ppm part of Figure 25.

The PCzTPN1 that makes has been carried out thermogravimetric-differential thermal analysis (TG-DTA).(Seiko InstrumentsInc. makes, and TG/DTA-320) measures, under nitrogen atmosphere, by with 10 ℃/minute heating rate the thermophysical property of the PCzTPN1 that makes being estimated to use thermogravimetric/differential thermal analyzer.As a result, by the relation between weight and the temperature (thermogravimetric analysis) as can be known, under condition of normal pressure, 95% or the temperature when following that weight is reduced to starting weight are 380 ℃.

[embodiment 6]

In embodiment 6, use description to the synthetic method of a kind of carbazole derivates of the present invention.In this embodiment, with 3 shown in the description scheme formula (61), 6-two [N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amino]-9-phenyl carbazole (abbreviation: synthetic method PCzTPN2).

[the 1st step]

(A-10) described 3 in, 6-two [N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amino]-9-phenyl carbazole (abbreviation: synthetic course PCzTPN2).

Specifically, in flask with 740 milligrams (1.5 milli rub) 3,6-two iodo-9-phenyl carbazoles, 1.2 grams (3 millis rub) N-(4-diphenyl amino phenyl)-N-(1-naphthyl) amine, 18 milligrams of (0.03 milli rubs) two (dibenzalacetone) palladiums and 1.0 restrain (10 millis rub) tert-butoxy sodium and mix, and the atmosphere in the flask substitutes with nitrogen.Add 7.5 milliliters of anhydrous dimethyl benzene in mixture, outgased then 3 minutes, add 0.2 milliliter of (0.1 milli rubs) tri-butyl phosphine (hexane solutions of 10 weight %) afterwards in mixture, this solution stirred 7 hours under 90 ℃, nitrogen atmosphere.In mixture, add about 300 milliliters of toluene, this solution florisil (trade name, florisil), aluminium oxide and diatomite filtration.The filtrate water of gained and saturated aqueous sodium chloride washing.The organic layer dried over mgso.Product is filtered, concentrates, use silica gel column chromatography (ratio of toluene and hexane is 3: 7) purifying then.The solution that makes is concentrated.Add hexane then, product is applied ultrasonic wave.Filtration obtains solid, makes 1.0 milligrams of PCzTPN2 yellow powders (productive rate 66%).The NMR data of object are as follows. ¹H?NMR(300MHz，DMSO-d)；δ＝6.68(d，j＝9.0，4H)，6.86-6.97(m，16H)，7.20-6.97(m，16H)，7.20-7.65(m，25H)，7.83(d，j＝8.1，2H)，7.95-7.98(m，4H)，8.05(d，j＝8.4，2H)。Figure 27 has shown ¹H NMR spectrum, Figure 28 has shown the enlarged drawing of 6.0-8.5ppm part among Figure 27.

The PCzTPN2 that makes has been carried out thermogravimetric-differential thermal analysis (TG-DTA).Use thermogravimetric/differential thermal analyzer (Seiko InstrumentsInc. makes, and TG/DTA 320) to measure.Under nitrogen atmosphere, by the thermophysical property of the PCzTPN2 that makes being estimated with 10 ℃/minute heating rate.As a result, by the relation between weight and the temperature (thermogravimetric analysis) as can be known, under condition of normal pressure, 95% or the temperature when following that weight is reduced to starting weight are 470 ℃.

[embodiment 7]

In embodiment 7, will describe the carbazole derivates that comprises general formula (1) expression and show the specific embodiment of layer that electronics is accepted the inorganic compound of character with respect to carbazole derivates.3-[N-(4-diphenyl amino the phenyl)-N-phenyl amino that uses embodiment 1 synthetic structural formula (28) to represent]-(abbreviation: of 9-phenyl carbazole PCzDPA1) as carbazole derivates.Use molybdenum oxide as inorganic compound.

At first glass substrate is fixed on the substrate holder in the vacuum evaporation apparatus.Then PCzDPA1 and molybdenum oxide (VI) are provided to independently independently in the electric resistor heating type evaporation source, by in the air in extracting vacuum evaporation apparatus out, PCzDPA1 and molybdenum oxide carried out coevaporation form the layer that comprises PCzDPA1 and molybdenum oxide.Make PCzDPA2 when in the case, PCzDPA1 and molybdenum oxide being carried out coevaporation: the mass ratio of molybdenum oxide is 4: 1.Therefore, the mol ratio between PCzDPA1 and the molybdenum oxide is about 1.0: 1.0.In addition, the thickness setting that will comprise the film of PCzDPA1 and molybdenum oxide is 90 nanometers.

The curve C of Figure 19 has shown the absorption spectrum measurement result of the hybrid films that comprises PCzDPA1 and molybdenum oxide that makes like this.As a comparison, also shown the absorption spectrum (curve A) that only contains the film of PCzDPA1 among Figure 19.In Figure 19, the longitudinal axis is represented absorption intensity (given unit), and transverse axis is represented wavelength (nanometer).

As can be seen from Figure 19, the hybrid films that contains PCzDPA1 and molybdenum oxide that curve C is represented shows the absorption (with dashed lines is irised out among the figure) of the new kind that can't find out from the film that only contains PCzDPA1.This causes owing to electronics transmits between PCzDPA1 and molybdenum oxide, thinks that molybdenum oxide accepts electronics from PCzDPA1, produces the hole in PCzDPA1.

Therefore, in the hybrid films that comprises PCzDPA1 and molybdenum oxide of Xing Chenging, charge carrier produces in inside in this embodiment, therefore can reduce driving voltage of light-emitting.

[embodiment 8]

In embodiment 8, will describe the carbazole derivates that comprises general formula (1) expression and show the specific embodiment of layer that electronics is accepted the inorganic compound of character with respect to carbazole derivates.Use 4-[N-(4-diphenyl amino phenyl)-(1-naphthyl) amino of general formula (33) expression synthetic among the embodiment 5]-(abbreviation: of 9-phenyl carbazole PCzTPN1) as described carbazole derivates.Use molybdenum oxide as described inorganic compound.

At first glass substrate is fixed on the substrate holder in the vacuum evaporation apparatus.Then PCzTPN1 and molybdenum oxide (VI) are provided to independently independently in the electric resistor heating type evaporation source, by in the air in extracting vacuum evaporation apparatus out, PCzTPN1 and molybdenum oxide carried out coevaporation form the layer that comprises PCzTPN1 and molybdenum oxide.Make PCzTPN1 when in the case, PCzTPN1 and molybdenum oxide being carried out coevaporation: the mass ratio of molybdenum oxide is 4: 1.Therefore, the mol ratio between PCzTPN1 and the molybdenum oxide is about 1.0: 1.1.In addition, the thickness setting that will comprise the film of PCzTPN1 and molybdenum oxide is 100 nanometers.

The curve C of Figure 20 has shown the absorption spectrum measurement result of the hybrid films that comprises PCzTPN1 and molybdenum oxide that makes like this.As a comparison, also shown the absorption spectrum (curve A) that only contains the film of PCzTPN1 among Figure 20.In Figure 20, the longitudinal axis is represented photon absorbing intensity (given unit), and transverse axis is represented wavelength (nanometer).

As can be seen from Figure 20, the hybrid films that contains PCzTPN1 and molybdenum oxide that curve C is represented shows the absorption (with dashed lines is irised out among the figure) of the new kind that can't find out from the film that only contains PCzTPN1.This causes owing to electronics transmits between PCzTPN1 and molybdenum oxide, thinks that molybdenum oxide accepts electronics from PCzTPN1, produces the hole in PCzTPN1.

Therefore, in the hybrid films that comprises PCzTPN1 and molybdenum oxide of Xing Chenging, charge carrier produces in inside in this embodiment, therefore can reduce driving voltage of light-emitting.

[execution mode 9]

In embodiment 9, will describe the carbazole derivates that comprises general formula (1) expression and show the specific embodiment of layer that electronics is accepted the inorganic compound of character with respect to carbazole derivates.Use 3 of structural formula (61) expression synthetic among the embodiment 6,6-two [N-(4-diphenyl amino phenyl)-N-phenyl amino]-9-phenyl carbazole (abbreviation: PCzTPN2) as described carbazole derivates.Use molybdenum oxide as described inorganic compound.

At first glass substrate is fixed on the substrate holder in the vacuum evaporation apparatus.Then PCzTPN2 and molybdenum oxide (VI) are provided to independently independently in the electric resistor heating type evaporation source, by in the air in extracting vacuum evaporation apparatus out, PCzTPN2 and molybdenum oxide carried out coevaporation form the layer that comprises PCzTPN2 and molybdenum oxide.Make PCzTPN2 when in the case, PCzTPN2 and molybdenum oxide being carried out coevaporation: the mass ratio of molybdenum oxide is 4: 1.Therefore, the mol ratio between PCzTPN2 and the molybdenum oxide is 1.0: 1.8.In addition, the thickness setting that will comprise the film of PCzTPN2 and molybdenum oxide is 110 nanometers.

The curve C of Figure 21 has shown the absorption spectrum measurement result of the hybrid films that comprises PCzTPN2 and molybdenum oxide that makes like this.As a comparison, also shown the absorption spectrum (curve A) that only contains the film of PCzTPN2 among Figure 21.In Figure 21, the longitudinal axis is represented photon absorbing intensity (given unit), and transverse axis is represented wavelength (nanometer).

As can be seen from Figure 21, the hybrid films that contains PCzTPN2 and molybdenum oxide that curve C is represented shows the absorption (with dashed lines is irised out among the figure) of the new kind that can't find out from the film that only contains PCzTPN2.This causes owing to electronics transmits between PCzTPN2 and molybdenum oxide, thinks that molybdenum oxide accepts electronics from PCzTPN2, produces the hole in PCzTPN2.

Therefore, in the hybrid films that comprises PCzTPN2 and molybdenum oxide of Xing Chenging, charge carrier produces in inside in this embodiment, therefore can reduce driving voltage of light-emitting.

[embodiment 10]

Describe light-emitting component of the present invention in detail with reference to Figure 35 below.

The tin indium oxide that comprises silica by use carries out sputter, has formed first electrode 2102 on glass substrate 2101.The thickness setting of described first electrode 2102 is in 110 nanometers.The area of described first electrode is set in 2 millimeters * 2 millimeters.

Next, the substrate that has first electrode on it is fixed on the substrate holder that is arranged in vacuum evaporation apparatus, the electrode of winning is positioned at below the substrate.Then described vacuum evaporation apparatus is found time, pressure is reduced to about 10 ^-4Handkerchief.Then, by coevaporation PCzPCN1 and molybdenum oxide (VI), on described first electrode 2102, form the layer 2103 that comprises composite material of the present invention.Layer 2103 the thickness setting that comprises composite material of the present invention is in 50 nanometers.The mass ratio of PCzPCN1-molybdenum oxide (VI) is adjusted to 4: 2.In addition, described coevaporation is a kind of at an indoor method of evaporating that is evaporated simultaneously by a plurality of evaporation sources.

Next, by being heated by resistive method, using NPB to evaporate and forming thickness is the hole transmission layer 2104 of 10 nanometers.

Then by coevaporation Alq ₃And coumarin 6, forming thickness on hole transmission layer 2104 is the luminescent layer 2105 of 40 nanometers.With Alq ₃-coumarin 6 mass ratio is adjusted to 1: 0.01.Then coumarin 6 is dispersed in and comprises Alq ₃The layer in.

By heating, on luminescent layer, form electron transfer layer 2106 then.

In addition, by coevaporation Alq ₃And lithium, on described electron transfer layer 2106, formed the electron injecting layer 2107 of 30 nanometer thickness.With Alq ₃The mass ratio of-lithium is adjusted to 1: 0.01.Therefore, lithium is dispersed in and comprises Alq ₃The layer in.

At last, evaporate, use aluminium on electron injecting layer 2107, to form second electrode 2108 that thickness is 200 nanometers by resistance heating.Thereby made the light-emitting component of embodiment 10.

Figure 29 has shown the brightness-voltage characteristic relation of the light-emitting component of embodiment 10.Figure 30 has shown its current efficiency-brightness relation.Figure 31 has also shown the emission spectrum when light-emitting component being applied 1 milliampere electric current.In the light-emitting component of embodiment 10, obtain 903 candela/rice ²The required voltage of brightness be 5.2V.The electric current that flows through light-emitting component in the case is 0.34 milliampere, and (current density is 8.5 milliamperes/centimetre ²).The cie color coordinate is x=0.30, y=0.63.In addition, current efficiency in the case is 10.6 candela/peaces.

As mentioned above, use composite material of the present invention to make light-emitting component, can reduce driving voltage of light-emitting.

[embodiment 11]

Describe light-emitting component of the present invention in detail with reference to Figure 36 below.

The tin indium oxide that comprises silica by use carries out sputter, has formed first electrode 2202 on glass substrate 2201.The thickness setting of described first electrode 2202 is in 110 nanometers.The area of described first electrode is set in 2 millimeters * 2 millimeters.

Next, the substrate that has first electrode on it is fixed on the substrate holder that is arranged in vacuum evaporation apparatus, the electrode of winning is positioned at below the substrate.Then described vacuum evaporation apparatus is found time, pressure is reduced to about 10 ^-4Handkerchief.Then, by coevaporation PCzPCN1 and molybdenum oxide (VI), on described first electrode 2202, form the layer 2203 that comprises composite material of the present invention.Layer 2203 the thickness setting that comprises composite material of the present invention is in 50 nanometers.The mass ratio of PCzPCN1-molybdenum oxide (VI) is adjusted to 4: 2.In addition, described coevaporation is a kind of at an indoor method of evaporating that is evaporated simultaneously by a plurality of evaporation sources.

Next, by being heated by resistive method, using NPB to evaporate and forming thickness is the hole transmission layer 2204 of 10 nanometers.

Then by coevaporation Alq ₃And coumarin 6, forming thickness on hole transmission layer 2204 is the luminescent layer 2205 of 40 nanometers.With Alq ₃The mass ratio of-coumarin 6 is adjusted to 1: 0.01.Thereby coumarin 6 is dispersed in comprises Alq ₃The layer in.

Evaporate by resistance heating then, use Alq ₃On luminescent layer 2205, form electron transfer layer 2206.

In addition, by coevaporation Alq ₃And lithium, on described electron transfer layer 2206, formed the layer 2207 of the material that has the donor level that can produce electronics comprising of 10 nanometer thickness.With Alq ₃The mass ratio of-lithium is adjusted to 1: 0.01.Therefore, lithium is dispersed in and comprises Alq ₃The layer in.

On the layer 2207 that comprises material, form the layer 2208 that comprises composite material of the present invention by coevaporation PCzPCN1 and molybdenum oxide (VI) with the donor level that can produce electronics.Layer 2208 the thickness setting that comprises composite material of the present invention is in 20 nanometers.The mass ratio of PCzPCN1-molybdenum oxide (VI) was set in 4: 2.

At last, evaporate by resistance heating, to form thickness on the layer 2208 of composite material of the present invention be second electrode 2109 of 200 nanometers comprising to use aluminium.Thereby made the light-emitting component of embodiment 11.

Figure 32 has shown the brightness-voltage characteristic relation of the light-emitting component of embodiment 11.Figure 33 has shown its current efficiency-brightness relation.Figure 34 has also shown the emission spectrum when light-emitting component being applied 1 milliampere electric current.In the light-emitting component of embodiment 11, obtain 1112 candela/rice ²The required voltage of brightness be 6.0V.The electric current that flows through light-emitting component in the case is 0.42 milliampere, and (current density is 10.7 milliamperes/centimetre ²).The cie color coordinate is x=0.30, y=0.63.In addition, current efficiency in the case is 10.4 candela/peaces.

Claims

1. light-emitting component, it comprises:

A plurality of layers between pair of electrodes,

A layer in these layers comprises the carbazole derivates of general formula (1) expression, and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1),

Ar ¹To Ar ⁶Expression comprises the aryl of 6-25 carbon atom or comprises the heteroaryl of 5-9 carbon atom independently;

The divalent heterocyclic group that X and Y represent to comprise the bivalent aromatic hydrocarbon group of 6-25 carbon atom independently or comprise 5-10 carbon atom

2. light-emitting component, it comprises:

A plurality of layers between pair of electrodes,

In these layers, one layer comprises the carbazole derivates shown in the general formula (1) and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1) with one of described electrode is contacted:

3. light-emitting component, it comprises:

Ground floor is positioned at the second layer on the described ground floor, is positioned on the described second layer the 3rd layer and be positioned on described the 3rd layer the 4th layer, these four layers between pair of electrodes,

The described second layer comprises luminescent substance,

Described the 3rd layer comprises the material with the donor level that can produce electronics,

The carbazole derivates of described ground floor and the expression of the 4th layer of each self-contained general formula (1) and show the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (1):

4. as each described light-emitting component among the claim 1-3, it is characterized in that R ¹Be in the following group any one: methyl, ethyl, the tert-butyl group, phenyl, 4-xenyl and 1-naphthyl.

5. as each described light-emitting component among the claim 1-3, it is characterized in that R ²Be the hydrogen or the tert-butyl group.

6. as each described light-emitting component among the claim 1-3, it is characterized in that R ²Structure with general formula (2), wherein Ar ¹, Ar ², Ar ³Have respectively and Ar with X ⁴, Ar ⁵, Ar ⁶The substituting group identical with Y.

7. light-emitting component, it comprises:

A plurality of layers between pair of electrodes,

A layer in these layers comprises the carbazole derivates of general formula (3) expression and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates of this general formula (3) expression:

Ar ¹And Ar ²Expression comprises the aryl of 6-25 carbon atom or comprises the heteroaryl of 5-9 carbon atom independently

8. light-emitting component, it comprises:

A plurality of layers between pair of electrodes,

Comprise the carbazole derivates of general formula (3) expression and show the inorganic compound that electronics is accepted character with the contacted layer of one of described pair of electrodes in these layers with respect to the carbazole derivates of this general formula (3) expression:

9. light-emitting component, it comprises:

The described second layer comprises luminescent substance,

The carbazole derivates of described ground floor and the 4th layer of each self-contained general formula (3) expression and the carbazole derivates of representing with respect to this general formula (3) show the inorganic compound that electronics is accepted character:

R in the formula ¹During expression is following any one: hydrogen, comprise the alkyl of 1-6 carbon atom, comprise the aryl of 6-25 carbon atom, comprise the heteroaryl of 5-9 carbon atom, aryl alkyl and comprise the acyl group of 1-7 carbon atom;

R ²During expression is following any one: hydrogen comprises the alkyl of 1-6 carbon atom and the substituting group shown in the general formula (4);

10. as each described light-emitting component among the claim 7-9, it is characterized in that R ¹Be in the following group any one: methyl, ethyl, the tert-butyl group, phenyl, 4-xenyl and 1-naphthyl.

11., it is characterized in that R as each described light-emitting component among the claim 7-9 ²Be the hydrogen or the tert-butyl group.

12., it is characterized in that R as each described light-emitting component among the claim 7-9 ²Structure with general formula (4), wherein Ar ¹And Ar ²Has identical substituting group.

13. a light-emitting component, it comprises:

A plurality of layers between pair of electrodes,

Wherein a layer in these layers comprises the carbazole derivates of general formula (5) expression, and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (5):

R ²Any one that expression is following: hydrogen comprises the alkyl of 1-6 carbon atom and the substituting group of structural formula (6) expression

14. a light-emitting component, it comprises:

A plurality of layers between pair of electrodes,

Comprise the carbazole derivates of general formula (5) expression and show the inorganic compound that electronics is accepted character with the contacted layer of one of described pair of electrodes in these layers with respect to the carbazole derivates of this general formula (5) expression:

15. a light-emitting component, it comprises:

The described second layer comprises luminescent substance,

The carbazole derivates of described ground floor and the 4th layer of each self-contained general formula (5) expression and the carbazole derivates of representing with respect to this general formula (5) show the inorganic compound that electronics is accepted character:

R ²During expression is following any one: hydrogen comprises the alkyl of 1-6 carbon atom and the substituting group of structural formula (6) expression

16., it is characterized in that R as each described light-emitting component among the claim 13-15 ¹Be in the following group any one: methyl, ethyl, the tert-butyl group, phenyl, 4-xenyl and 1-naphthyl.

17., it is characterized in that R as each described light-emitting component among the claim 13-15 ²Be the hydrogen or the tert-butyl group.

18., it is characterized in that R as each described light-emitting component among the claim 13-15 ²Structure with structural formula (6).

19. a light-emitting component, it comprises:

A plurality of layers between pair of electrodes,

A layer in these a plurality of layers comprises the carbazole derivates of general formula (103) expression, and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (103):

R ²During expression is following any one: hydrogen comprises the alkyl and the represented substituting group of structural formula (104) of 1-6 carbon atom

20. a light-emitting component, it comprises:

A plurality of layers between pair of electrodes,

In described a plurality of layer, one comprises the carbazole derivates shown in the general formula (103) and shows the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (103) for contacted layer with one of described electrode:

21. a light-emitting component, it comprises:

The described second layer comprises luminescent substance,

The carbazole derivates of described ground floor and the expression of the 4th layer of each self-contained general formula (103) and show the inorganic compound that electronics is accepted character with respect to the carbazole derivates shown in the general formula (103):

R ²Any one that expression is following: hydrogen comprises the alkyl and the represented substituting group of structural formula (104) of 1-6 carbon atom

22., it is characterized in that R as each described light-emitting component among the claim 19-21 ¹Be in the following group any one: methyl, ethyl, the tert-butyl group, phenyl, 4-xenyl and 1-naphthyl.

23., it is characterized in that R as each described light-emitting component among the claim 19-21 ²Be the hydrogen or the tert-butyl group.

24., it is characterized in that R as each described light-emitting component among the claim 19-21 ²Structure with general formula (104).

25. as claim 1-3,7-9, each described light-emitting component is characterized in that among 13-15 and the 19-21, described inorganic compound is the oxide of transition metal.

26. as claim 1-3,7-9, each described light-emitting component among 13-15 and the 19-21, it is characterized in that described inorganic compound is one or more in the following material: titanium dioxide, vanadium oxide, molybdenum oxide, tungsten oxide, rheium oxide, ruthenium-oxide, chromium oxide, zirconia, hafnium oxide, tantalum oxide and silver oxide.

27. a luminescent device, it comprises claim 1-3,7-9, each described light-emitting component among 13-15 and the 19-21.