CN1956237A - Luminescent element material and luminescent element comprising the same - Google Patents

Luminescent element material and luminescent element comprising the same Download PDF

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CN1956237A
CN1956237A CN200610143103.9A CN200610143103A CN1956237A CN 1956237 A CN1956237 A CN 1956237A CN 200610143103 A CN200610143103 A CN 200610143103A CN 1956237 A CN1956237 A CN 1956237A
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light
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phenanthroline
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CN100541856C (en
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富永剛
北澤大輔
槙山曉
小濱亨
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Toray Industries Inc
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Abstract

The light emitting device of the present invention relates to a light emitting device which is characterized in that it is a device with an emissive substance present between an anode and cathode, and which emits light by means of electrical energy, and said device has a spiro compound represented by general formula (1) A1 and A2 are each selected from single bonds, substituted or unsubstituted alkyl chains, ether chains, thioether chains, ketone chains and substituted or unsubstituted amino chains. However, A1<> A2. Z represents carbon or silicon. R1 to R16 are each selected from hydrogen, alkyl group, cycloalkyl group, aralkyl group, alkenyl group, cycloalkenyl group, alkynyl group, hydroxyl group, mercapto group, alkoxy group, alkylthio group, aryl ether group, aryl thioether group, aryl group, heterocyclic group, halogen, haloalkane, haloalkene, haloalkyne, cyano group, aldehyde group, carbonyl group, carboxyl group, ester group, carbamoyl group, amino group, nitro group, silyl group, siloxanyl group and a cyclic structure formed with an adjacent substituent.

Description

The light-emitting component of light emitting element material and this material of use
Technical field
The present invention relates to convert electrical energy into the element of light, relate to the light-emitting component and the light emitting element material that can be used in display element, flat-panel monitor, back of the body illuminator, lighting tool, interior decoration, sign, bulletin board, Electrofax, the optical signal generator etc.
Background technology
In recent years about from the negative electrode injected electrons and from the anode injected holes in the organic fluorescent that is sandwiched in two interpolars again in conjunction with the time luminous organic lamination thin-film luminous element research very active.The feature of this element be slim, under low driving voltage high brightness luminescent, multicolor luminous by selecting fluorescent material to produce, therefore receive much attention.
Since the people such as C.W.Tang of Kodak have disclosed organic lamination thin-film component high brightness luminescent (Appl.Phys.Lett.51 (12) 21, p.913,1987), a lot of research institutions are studied this.The representative structure of organic lamination thin-film luminous element that research group proposed of Kodak is, on ito glass substrate, set gradually the diamine compound of cavity conveying, as the oxine aluminium of luminescent layer, and, under the driving voltage about 10V, can send 1000cd/m as the Mg:Ag of negative electrode 2Green light.
The formation of this organic lamination thin-film luminous element is outside above-mentioned anode/hole transporting layer/luminescent layer/negative electrode, electron supplying layer to be set suitably.Hole transporting layer has and will be transported to the function of luminescent layer from the anode injected holes, and on the other hand, electron supplying layer is to be transported to luminescent layer from the negative electrode injected electrons.By with between these layers insertion luminescent layer and the two poles of the earth, improve luminous efficiency, durability.The example that uses its element to constitute, specifiable have anode/hole transporting layer/luminescent layer/electron supplying layer/negative electrode, an anode/luminescent layer/electron supplying layer/negative electrode etc.
But luminescent material in the past, hole transporting material, electron transport materials are the material of poor durability mostly, because long-time energising causes element heating to cause crystallization, and the lifetime of element.
Particularly electron transport materials exists, even use current material few in number, owing to interact with luminescent material, or mix the reason such as luminous that electron transport materials itself is arranged, can not obtain desired glow color, promptly enable to obtain high efficiency light-emitting, the problem of poor durability etc.In No. 5393614, United States Patent (USP),,, there is the problem of film gonorrhoeaization in electron transport materials because crystallization takes place in long-time energising though the specific phenanthroline derivative that uses demonstrates high efficiency light-emitting.In addition, as the material that shows luminous efficiency and the reasonable rerum natura of durability, though hydroxy quinazine metal complex or benzo hydroxy quinazine metal complex are arranged, but because these materials itself have high bluish-green～yellow luminous power, when using as electron transport materials, luminous the mixing of these materials itself, the colorimetric purity variation.
The objective of the invention is to solve above-mentioned the problems of the prior art, the light-emitting component of colorimetric purity excellence under excellent heat stability, luminous efficiency height, the high brightness is provided.
Summary of the invention
Optical element of the present invention is, a kind ofly has luminescent substance between anode and negative electrode, and by the luminous light-emitting component of electric energy, this element is characterised in that to have at least a in the compound shown in following (a)～(d),
(a) have a plurality of 1, the compound of 7-phenanthroline skeleton
(b) benzoquinoline derivative
(c) volution compound shown in the general formula (1)
Figure A20061014310300051
A 1, A 2Be selected from singly-bound, replacement or unsubstituted alkyl chain, ether chain, thioether chain, ketone chain, replacement or unsubstituted amino chain respectively.But A 1≠ A 2Z represents carbon, silicon.R 1～R 16Be selected from hydrogen, alkyl, cycloalkyl, aralkyl, alkenyl, cycloalkenyl group, alkynyl, hydroxyl, sulfydryl, alkoxyl, alkylthio group, aryl ether group, fragrant thioether group, aryl, heterocyclic radical, halogen, halogenated paraffin, halogenated olefine, halo alkynes, cyano group, aldehyde radical, carbonyl, carboxyl, ester group, carbamoyl, amino, nitro, silicyl, siloxy group, and adjacent substituting group between form ring structure.
(d) the tetraphenylmethane derivative shown in the general formula (2)
Figure A20061014310300061
R 17～R 36Be selected from hydrogen, alkyl, cycloalkyl, aralkyl, alkenyl, cycloalkenyl group, alkynyl, hydroxyl, sulfydryl, alkoxyl, alkylthio group, aryl ether group, fragrant thioether group, aryl, heterocyclic radical, halogen, halogenated paraffin, halogenated olefine, halo alkynes, cyano group, aldehyde radical, carbonyl, carboxyl, ester group, carbamoyl, amino, nitro, silicyl, siloxy group, and adjacent substituting group between form ring structure.Condition is R 17～R 36In at least one is to be selected from the substituting group shown in the general formula (3).
-X-Ar (3)
X is singly-bound or selects that Ar represents thick aromatic ring, hetero-aromatic ring from following.
When X was phosphorous oxides, Ar represented aromatic hydrocarbon, hetero-aromatic ring.
Figure A20061014310300062
-O- -S-
Figure A20061014310300063
Wherein n represents natural number.
The optimum implementation of invention
Electron supplying layer of the present invention is meant from negative electrode and injects electronics, the further layer of conveying electronic, and preferred electron injection efficiency height is efficiently carried the layer of injected electrons.But, when considering the conveying balance of hole and electronics, main performance can effectively stop from the hole of anode do not carry out again in conjunction with and do the time spent to what cathode side flowed, even the electron transport ability is so not high, the effect that improves luminous efficiency is also identical with the high material of electron transport ability.Therefore, the electron supplying layer among the present invention also contains the hole blocking layer that can effectively stop the hole to be moved as the layer of same meaning.
The material that constitutes electron supplying layer of the present invention is molecular weight 400 or above organic compound.Use molecular weight less than 400 organic compound, electron supplying layer is heat-labile, and crystallization easily can not get stable luminous under long-time energising.More preferably 600 or more than.
The material that constitutes electron supplying layer of the present invention be 90 ℃ of glass transition temperatures or more than, more preferably 120 ℃ or more than, further preferred 150 ℃ or more than.In addition, have the film of the high compound of cold junction crystallization temperature, be difficult to crystallization, preferred cold junction crystallization temperature be 140 ℃ or more than, more preferably 170 ℃ or more than, further preferred 200 ℃ or more than.More preferably do not observe the compound of cold junction crystallization temperature.Here said not observing is meant, when the glass transition temperature of mensuration sample or cold junction crystallization temperature, when with certain speed sample being heated up, can not get clear and definite cold junction crystallization temperature.In addition, glass transition temperature or cold crystallization temperature are to use powdered sample, and the differential scanning calorimeter of employing temperature modulation DSC method is measured.
In addition, the ionization potential that constitutes electron transport layer material of the present invention be 5.9eV or more than.If ionization potential 5.9eV or more than, can effectively stop from the anode injected holes not in luminescent layer again in conjunction with and flow to negative electrode, improve luminous efficiency.In addition, because electron supplying layer itself is not luminous, only can obtain luminous from the high color purity of luminescent layer.More preferably 6.0eV or more than.In addition, the absolute value of ionization potential is to use the film of evaporation on ito glass substrate in the present invention according to the difference of assay method and difference, measures with atmospheric atmosphere type ultraviolet electronic analysis device (AC-1, reason are ground gauge (strain) system).
In addition, electron supplying layer of the present invention more preferably its ionization potential than the high 0.1eV of ionization potential of luminescent layer or above layer.Between adjacent electron supplying layer and luminescent layer, if with the ionization potential difference of luminescent layer 0.1eV or more than, can effectively stop from the anode injected holes not in luminescent layer again in conjunction with and flow to negative electrode.Consider from high temperature operational environment, more preferably 0.15eV or more than, further preferred 0.2eV or more than.In addition, ionization potential difference in the present invention is to use above-mentioned assay method, calculates from the ionization potential value of above-mentioned each layer individual course.In addition, the ionization potential value changes according to the state of sample.Therefore, luminescent layer and electron supplying layer be 2 kinds or above material form mixed layer the time, measure the ionization potential value of this mixed layer.
Organic compound as constituting electron supplying layer preferably contains a plurality of precursor skeletons with electron transport function, the material that a plurality of precursor skeletons connect by linking group.As precursor skeleton with electron transport function, preferred phenanthroline skeleton or benzoquinoline skeleton.Phenanthroline skeleton or benzoquinoline skeleton can obtain high ionization potential except the electron transport function.In addition, when only depending on phenanthroline skeleton or benzoquinoline skeleton electron transport scarce capacity, can in phenanthroline skeleton or benzoquinoline skeleton, have the functional group that vinyl, carbonyl, carboxyl, aldehyde radical, nitro, cyano group, halogen, sulfone, phosphorous oxides etc. have the electron transport function, wherein preferred phosphorous oxides.
The linking group that connects phenanthroline skeleton and/or benzoquinoline skeleton preferably contains the connection base of conjugated bonds, aromatic hydrocarbon, aromatic heterocycle, group shown in specifically can being listed below.
Figure A20061014310300091
In addition, the linking group of use can be a kind, also can be their mixed group.
These linking groups can be bought the commercially available prod, and also available conventional method is synthetic, and the concrete example of several skeletons is as follows.
9,9 '-spiral shell, two fluorene skeletons synthetic can be enumerated J.Am.Chem.Soc., the 2881st page of vol.52 (1930), " embodiment, A. starting material a) 9,9 '-spiral shell, two fluorenes synthetic " of No. 5840217, United States Patent (USP).With the 2-bromo biphenyl in THF with the magnesium metal Grignard reagentization, from room temperature to 50 ℃,, handle then with normal temperature with the reaction of 9-Fluorenone, with gained hydroxyl body thermal dehydration in the acetate that has added small amount of hydrochloric acid, handle with conventional method.
9, two (the 9H-9-silicon fluorenes) skeletons of 9 '-spiral shell synthetic can be enumerated 1883 pages of J.Am.Chem.Soc.Vol.80 (1958) etc. as a reference.Make 2,2 '-'-dibromobiphenyl reacts with lithium metal in ether, in the temperature of appointment, with the tetrachloro silicane reaction, handles and can obtain with conventional method then.
Six benzo propellane skeletons synthetic can be enumerated Libigs Ann.Chem. as a reference, the 38th page of vol.749 (1971) etc.Make the reaction of 9-Fluorenone and triethyl phosphite, handle, obtain the spiral shell ketonic compound with methyl alcohol.In ether, the lithium body of spiral shell ketonic compound and 2-bromo biphenyl is reacted at assigned temperature then, handle with conventional method, with gained hydroxyl body thermal dehydration in the acetate that has added methanesulfonic acid, available conventional method is handled and is obtained.
The phenanthroline skeleton can be enumerated the structure of general formula (4)～(6) among the present invention.
R in general formula (4)～(6) 37～R 39Modification substituting group in the optional position in the expression phenanthroline skeleton except that link position; can be selected from hydrogen particularly; methyl; alkyl such as ethyl; cyclohexyl; cycloalkyl such as norborneol alkyl; aralkyl such as benzyl; vinyl; alkenyls such as pi-allyl; cyclopentadienyl group; cycloalkenyl groups such as cyclohexenyl group; alkoxyls such as methoxyl group; the alkylthio group that the oxygen atom of ehter bond is replaced by sulphur atom in the alkoxyl; aryl ether groups such as phenoxy group; the aryl thioethers base that the oxygen atom of ehter bond is replaced by sulphur atom in the aryl ether group; phenyl; naphthyl; aryl such as xenyl; furyl; thienyl;  azoles base; pyridine radicals; quinolyl; heterocyclic radicals such as carbazyl; halogen; cyano group; aldehyde radical; carbonyl; carboxyl; ester group; carbamoyl; amino; nitro; silicyls such as trimethyl silyl; as the siloxy group that has by the silicon of ehter bond, and form ring structure between the adjacent substituting group, these can not have replacement and can be substituted yet.L represents 1～8 integer.When having a plurality of substituting group, each substituting group can be identical also can be different.
Phenanthroline is that the example of precursor skeleton can be enumerated the such structure of general formula (7) when being basic framework with general formula (4).
Figure A20061014310300121
Here, Y is the linking group shown in above-mentioned, and m represents 2 or above natural number.
Have a plurality ofly 1 in the present invention, the compound of 7-phenanthroline skeleton is a general formula (5) during as precursor skeleton at above-mentioned phenanthroline skeleton, can enumerate the structure shown in the general formula (8).
Figure A20061014310300122
Here, Y be above-mentioned shown in linking group, m represents 2 or above natural number.
Of the present invention have a plurality ofly 1, and the compound of 7-phenanthroline skeleton has blue-fluorescence, also can be used as the compound that forms fluorescence coating and uses.
As importing to the phenanthroline skeleton of linking group, can be set forth in import acetyl group isoreactivity substituting group after, form the method for phenanthroline ring, after importing iodo or bromo isoreactivity substituting group, the method for additional phenanthroline ring.
The introductory technique of acetyl group can be enumerated the acidylate that commonly used and easy Fred restrains Ford.As a reference; can enumerate " embodiment; A. initial compounds f) from 9,9 '-spiral shell, two fluorenes are through 2,2 '-diacetyl-9; 9 '-spiral shell, two fluorenes preparation 9; 9 '-spiral shell, two fluorenes-2,2 '-dicarboxylic acids " or the Helvetica Chimica Acta of No. 5840217, United States Patent (USP), vol.52 (1969) the 1210th page " Experimenteller Tell2; 2 '-diacetyl-9,9 '-spiral shell, two fluorenes (IV) " etc.Make linking group 1, at 50 ℃ and chloroacetic chloride and aluminium reaction, handle in the 2-dichloroethanes, can import acetyl group with conventional method.
From the method for acetyl group importing phenanthroline skeleton, can enumerate the 7312nd page of flow process of vol.40 (1999) or organic chemistry magazine 1996,61 as a reference; the 302nd page " 2-phenyl-1; 10-phenanthroline ", Tetrahedron Letters, the 5291st page～the 5294th page of vol.23 (1982) etc.The acetyl body that makes linking group in two  alkane 60 ℃ with reactions such as the corresponding quinoline of 8-amino-7-quinoline aldehyde etc., potassium hydroxide, the method for handling with conventional method.
The importing of iodo can be enumerated Japanese The Chemicals 92 volumes No. 11 (1971) the 1023rd page " 1,1, the iodate of 1-methyl naphthalene " or Tetrahedron Letters as a reference, the 1487th page of vol.38 (1997) etc.Make linking group in 80% acetate 80 ℃ with iodine and periodic acid 2 hydrate reactions, handle with conventional method, or in carbon tetrachloride, make itself and iodine and two (trifluoroacetyl oxygen) iodobenzenes reaction at 50 ℃ to 60 ℃, with the conventional method processing, can import iodo.
The importing of bromo can be enumerated the 1098th page of " embodiment, initial compounds a) 9,9 '-spiral shell, two fluorenes synthetic " Angew.Chem.Int.Ed.Engl.25 (1986) No.12 of No. 5840217, United States Patent (USP) etc. as a reference.Make linking group at room temperature and bromine reaction, handle, can import bromo with conventional method.
Method as import the phenanthroline skeleton from iodo, bromo has iodine body or bromine body and function lithium metal lithiumation with linking group, then with corresponding anhydrous phenanthroline reaction, the method that water, manganese dioxide are handled.
In addition, import the phenanthroline skeleton to linking group, not only can use aforesaid at first synthetic linking group, import the method for reactive substituents then, the raw material that also can contain reactive substituents when synthetic linking group by use directly obtains having imported the linking group of reactive substituents.For example, for synthetic importing shown in following the linking group of acetyl group, can be by making 2,2 '-'-dibromobiphenyl and 4-acetylbenzene ylboronic acid react under Suzuki coupling agent (list of references: Chem.Rev.vol.95 (1995) the 2457th page) condition and obtain.
Constitute the organic compound of luminescent layer and electron supplying layer, the compound that preferably has sublimability.Here said sublimability is meant, do not decompose when heating in a vacuum and volatilizees, and can film formingly look like.Light-emitting component of the present invention is owing to be laminated structure, if having the organic compound of sublimability, can use dry process such as vacuum vapour deposition easily to form laminated structure.In addition, when in luminescent layer, forming doped layer, can by with the common vapour deposition method of material of main part, or mixes the method for while evaporation then, the controlled doped layer that forms in advance with material of main part excellently.In addition, in the display that shows with matrix or segmented mode, it is necessary obtaining the luminous of required patterning, and still, the organic compound with sublimability can easily form pattern by dry process.
It is a kind of that electron supplying layer of the present invention need not be only limited to above-mentioned organic compound, also can be with multiple material mixing or lamination.But under the situation of lamination, above-mentioned parameter can satisfy by one deck adjacent with luminescent layer.In addition, from improving the purpose of the overall conveying energy of electron supplying layer, thermal stability, electrochemical stability, also can in electron transport materials, add the organic compound of no electron transport function or inorganic compound, metal complex, the formation electron supplying layer.
Said luminescent layer is actually the layer that is formed by luminescent substance, and luminescent material can only be made of a kind of organic compound, also can be the mixed layer that 2 kinds or above organic compound form.Consider from the viewpoint that improves luminous efficiency, colorimetric purity and durability, preferably constitute by 2 kinds or above organic compound.The combination of 2 kinds or above organic compound can be enumerated the combination of material of main part and dopant material.At this moment, the film that material of main part is mainly taken on luminescent layer forms function and charge transport function, and on the other hand, dopant material is mainly taken on lighting function, and its luminescence mechanism has energy mobile model and carrier capture type.In the energy mobile model, carrier combination again in body layer of injecting from the two poles of the earth, material of main part is excited, and moves to dopant material generation energy from exciting material of main part, finally obtains luminous from dopant material.In carrier capture type, from body layer, move the directly combination again on dopant material of carrier of coming, the dopant material that excites is luminous.Under any situation, use at solution state as the dopant material of taking on lighting function during as the material of high color purity, high light quantum yield, all can to obtain high color purity, high efficiency luminous.In addition, by adding dopant material, membranous as the body layer of film parent, the direction low to crystallinity moves, and this moment, durability also improved.
When being used in combination such material of main part and dopant material, dopant material can contain in material of main part all, also can be partly to contain.In addition, dopant material can lamination, also can disperse.
Organic compound when forming luminescent layer separately, or the material of main part in main body and the dopant material combination has, anthracene or pyrene, fused rings derivatives such as perylene, pyrazine, naphthyridines, quinoxaline, pyrrolopyridine, pyrimidine, thiophene, Hete rocyclic derivatives such as thioxanthene, hydroxy quinazine metal complexes such as three (oxine) aluminum complex, the benzo hydroxy quinazine metal complex, the bipyridine metal complex, the rhodamine metal complex, azomethine-metal complexes, the diphenylethyllene benzene derivative, the tetraphenylbutadiene derivative, 1, the 2-diphenyl ethylene derivatives, the aldazine derivative, coumarin derivative, phthalimide derivative, Naphthalamide derivatives, perilla ketone (perinone) derivative, Pyrrolopyrrole derivatives, cyclopentadiene derivant, imdazole derivatives or  Zole derivatives, thiazole,  oxadiazole derivative, thiadiazoles derivative, Zole derivatives and metal complexs thereof such as triazole derivative, benzoxazol, benzimidazole, benzoxazole derivative and metal complexs thereof such as benzothiazole, amine derivatives such as triphenylamine derivative or carbazole derivates, part cyanines derivative, derivatives of porphyrin, phosphor materials such as three (2-phenylpyridine) indium complex, the polyphenylene vinylene derivative of polymer class, the poly radical derivative, polythiofuran derivative etc.
As dopant material; anthracene is arranged; condensed polycyclc aromatic hydrocarbon derivatives such as perylene; 7-dimethylamino-coumarin derivatives such as 4-methylcoumarin; two (Naphthalamide derivatives such as diisopropyl phenyl) perylene tetracarboxylic acid imines; the perilla ketone derivative; acetylacetone,2,4-pentanedione or benzoyl acetone and phenanthroline etc. are as the terres rares complexs such as Eu complex of ligand; dicyano methylene pyran derivate; dicyano sulfonium methylide pyran derivate; magnesium phthalocyanine; metal phthalocyanine derivatives such as phthalocyanine chlorine aluminium; derivatives of porphyrin; the rhodamine derivative; the denitrogenation flavin derivatives of mixing; coumarin derivative;  piperazine compound; thioxanthene derivative; the cyanines pigment derivative; fluorescein derivative; the bifurcation piperidine derivatives; quinoline bifurcation ketone derivatives; Pyrrolopyrrole derivatives; quinazoline derivant; Pyrrolopyridine derivatives; the Squarilium derivative; the violanthrone derivative; the azophenlyene derivative; the acridone derivative; the denitrogenation flavin derivatives of mixing; methylene azole derivatives and metal complex thereof; fen  oxazinone derivative; thiadiazoles and pyrene derivatives; three (2-phenylpyridine) complex of iridium; three (2-phenylpyridyl) complex of iridium; three [2-(2-thiophenyl) pyridine radicals] complex of iridium; three [2-(2-benzo thiophenyl) pyridine radicals] complex of iridium; three (2-phenyl benzothiazole) complex of iridium; three (2-phenyl benzoxazol) complex of iridium; three benzo quinoline complex of iridium; two (2-phenylpyridyl) (acetyl group acetic acid esters) complex of iridium; two [2-(2-thiophenyl) pyridine radicals] complex of iridium; two [2-(2-benzo thiophenyl) pyridine radicals] (acetyl group acetic acid esters) complex of iridium; two (2-phenyl benzothiazole) (acetyl group acetic acid esters) complex of iridium; two (2-phenyl benzoxazol) (acetyl group acetic acid esters) complex of iridium; two benzoquinolines (acetoacetic ester) complex of iridium, phosphor materials such as porphyrin platinum complex.These can use separately, also can mix a plurality of derivatives and use.
In addition, because membranous variation or the superfluous carrier of capture can make durability improve, so, also have and do not take on lighting function, add the situation of dopant.The dopant material of this moment is selected from the material that matches with material of main part in the various organic and inorganic compounds.In addition, doping condition is same as described above.
Light-emitting component of the present invention from making hole and electronics effective purpose of combination again in luminescent layer, preferably further has hole transporting layer between anode and luminescent layer.Hole transporting layer is meant from the anode injected hole, and further carries the layer in hole.The cavity conveying material has, N, N '-diphenyl-N, N '-two (3-aminomethyl phenyl)-4,4 '-diphenyl-1,1 '-diamines, N, N '-two (1-naphthyl)-N, N '-diphenyl-4,4 '-diphenyl-1, triphenyl amines such as 1 '-diamines, two (N-aryl carbazoles) or two (N-alkyl carbazole) class, pyrazoline derivative, 1,2-diphenylethylene compounds, talan radical derivative, hydrazone compounds,  oxadiazole derivative or phthalocyanine derivates, heterocyclic compounds such as derivatives of porphyrin, Merlon or the styrene derivative of polymer on side chain, having aforementioned monomer, Polyvinyl carbazole, polysilane etc.These can use separately, also can mix a plurality of derivatives or carry out lamination.In addition, from improving the purpose of the overall conveying energy of hole transporting layer, thermal stability, electrochemical stability, also can in hole transporting material, add the organic compound of no cavity conveying function or inorganic compound, metal complex, the formation electron supplying layer.
Anode in the present invention, in order to take out light so long as transparent getting final product, can be tin oxide, indium oxide, indium tin oxide target conductive metal oxides such as (ITO), or metals such as gold, silver, chromium, inorganic conductive such as cupric iodide, copper sulfide material, polymer such as polythiophene, polypyrrole, polyaniline etc.Especially preferably use ito glass or nesa glass.The resistance of transparency electrode is because can be just passable to the sufficient electric current of the luminous supply of element, so from the viewpoint of the consumption electric power of element, preferably low-resistance.For example, if the following ito substrate of 300 Ω/ can be brought into play the function as element electrode, but because what exist now is substrate about 10 Ω/, therefore preferably especially use low-resistance product.The thickness of ITO can cooperate resistance value to select arbitrarily, uses between 100～300nm mostly usually.In addition, glass substrate can use soda-lime glass, alkali-free glass etc.In addition, can be for maintenance mechanical strength thickness 0.5mm or above getting final product.For the material of glass, since few more good more from the ion of glass stripping, therefore preferred alkali-free glass.Also can use and use SiO 2Soda-lime glass Deng barrier coat.In addition, as long as anode is stable performance function, also can on plastic base, form anode.The formation method of ito thin film can be enumerated wire harnesses method, sputtering method, chemical reaction method etc.
Negative electrode is so long as can inject electronics the material of this organic matter layer effectively and get final product.Cathode material can be enumerated platinum, gold, silver, copper, iron, tin, zinc, aluminium, indium, chromium, lithium, sodium, potassium, calcium, magnesium, caesium, strontium etc.Improve element characteristic in order to improve electron injection efficiency, lithium, sodium, potassium, calcium, magnesium, caesium, strontium or the alloy that contains these low workfunction metal are effective.In addition, also preferably use in organic layer the method for the lithium of the trace that mixes or magnesium, caesium (film thickness gauge of vacuum evaporation is represented below the 1nm) electrode that rear stability is high, also can use inorganic salts such as lithium fluoride.Further; for guard electrode, the metal of preferred lamination platinum, gold, silver, copper, iron, tin, aluminium, indium etc., or use the alloy of these metals; and inorganic matter such as silicon dioxide, titanium dioxide, silicon nitride, polyvinyl alcohol, vinyl chloride, hydro carbons macromolecule etc.As the manufacture method of these electrodes, can enumerate resistance heating, wire harnesses, sputter, ion plating, coating etc.
Benzoquinoline skeleton in the present invention is meant, at the skeleton that the optional position and the benzene of quinoline condenses, can enumerate general formula (9)～(14).
Figure A20061014310300171
The R of general formula (9)-(14) 40-R 45, the modification substituting group in the optional position in the benzoquinoline skeleton beyond the expression link position is identical with the situation of phenanthroline skeleton.N represents 1～8 integer, and substituting group has when a plurality of, each substituting group can be identical also can be different.
In addition, long-time stable luminous in order to obtain, preferred thermal stability or film form the material of property excellence, in the benzoquinoline derivative, can enumerate the compound with a plurality of benzoquinoline skeletons as preferred example.About the explanation of benzoquinoline skeleton, same as described above.
In addition, in order to obtain high brightness luminescent, preferably use the high compound of electron transport function.Therefore, as aforementioned compound with a plurality of benzoquinoline skeletons, more preferably a plurality of benzoquinoline skeletons are by the compound of any connection in these groups of conjugated bonds, aromatic hydrocarbon, aromatic heterocycle or mixing.
Concrete example when being precursor skeleton as benzoquinoline, structure shown in the general formula (15) in the time of can enumerating general formula (9) for basic framework.
Figure A20061014310300182
Here, Y is identical with general formula (7) with m.
Benzoquinoline derivative of the present invention because electron transport energy and hole stop energy excellent, therefore preferably uses as electron transport materials.
Compound with a plurality of benzoquinoline skeletons of the present invention, the same method of available and above-mentioned phenanthroline skeleton is synthesized.Can enumerate; after importing acetyl group on the linking group; make it to react with naphthalene derivatives; form the method (list of references: organic chemistry magazine of benzoquinoline ring; the 1996,61,3021st page " 1; 3-two (benzo) [h] quinoline-2-yl) benzene ") or import iodo or bromo isoreactivity substituting group after, the method for additional benzoquinoline ring.
Below the spiro-compound shown in the general formula (1) that uses in the light-emitting component of the present invention is described.
Figure A20061014310300191
A 1, A 2Be selected from singly-bound, replacement or unsubstituted alkyl chain, ether chain, thioether chain, ketone chain, replacement or unsubstituted amino chain respectively.Condition is A 1≠ A 2Z represents carbon, silicon.R 1～R 16Be selected from hydrogen, alkyl, cycloalkyl, aralkyl, alkenyl, cycloalkenyl group, alkynyl, hydroxyl, sulfydryl, alkoxyl, alkylthio group, aryl ether group, fragrant thioether group, aryl, heterocyclic radical, halogen, halogenated paraffin, halogenated olefine, halo alkynes, cyano group, aldehyde radical, carbonyl, carboxyl, ester group, carbamoyl, amino, nitro, silicyl, siloxy group, and adjacent substituting group between form ring structure.
In these substituting groups, alkyl is represented representative examples of saturated aliphatic alkyl such as methyl, ethyl, propyl group, butyl.Saturated fat ring type alkyl such as cycloalkyl representative ring propyl group, cyclohexyl, norborneol alkyl, adamantyl.Aralkyl is represented the intervenient aromatic hydrocarbyl of aliphatic hydrocarbon of benzyl, phenethyl etc.Represent alkenyl vinyl, pi-allyl, butadienyl etc. contain the unsaturated fatty hydrocarbons base of two keys.The unsaturated lipid ring type alkyl that contains two keys of cycloalkenyl group representative ring pentenyl, cyclopentadienyl group, cyclohexenyl group etc.Alkyl is represented the unsaturated fatty hydrocarbons base that contains triple bond of acetenyl etc.Alkoxyl represents that methoxyl group etc. is by the intervenient aliphatic alkyl of ehter bond.Alkylthio group is represented the group that the oxygen atom of alkoxyl ehter bond is replaced by sulphur atom.The intervenient aryl radical of ehter bond of aryl ether basis representation phenoxy group etc.The group that the ehter bond oxygen atom of aryl thioethers basis representation aryl ether is replaced by sulphur atom.Aryl is represented aromatic hydrocarbyls such as phenyl, naphthyl, xenyl, phenanthryl, terphenyl base, pyrenyl.Heterocyclic radical represents that furyl, thienyl,  azoles base, pyridine radicals, quinolyl, carbazyl etc. have the group of the circulus of the atom beyond the carbon atom.R 1～R 16Arbitrary substituting group, can be do not have to replace, also can further be substituted.Halogen is represented fluorine, chlorine, bromine, iodine.Halogenated paraffin, halogenated olefine, halo alkynes are represented aforesaid alkyl, the alkenyl of trifluoromethyl etc., part or all group that is replaced by aforementioned halogen of alkynyl, and remainder can not have replacement and can be substituted yet.Comprise the group that is replaced by aliphatic hydrocarbon, ester ring type hydrocarbon, aromatic hydrocarbon, heterocycle etc. in aldehyde radical, carbonyl, ester group, carbamoyl, amino, further aliphatic hydrocarbon, ester ring type hydrocarbon, aromatic hydrocarbon, heterocycle can be not have replacement or substituted.Silicyl is represented silicon compound groups such as trimethyl silyl, and it can be not have replacement or substituted.Siloxy group is represented the intervenient group with silicon of ehter bond of trimethylsiloxane group etc., and it can be not have to replace or substituted.Also can and adjacent substituting group between form ring structure.The ring structure that forms can be that nothing replaces or substituted.
Preferred R 1～R 16In at least one contains cavity conveying substituent, electron transport substituent, photism substituting group, film and forms functional substituting groups such as substituent.The cavity conveying substituent can be enumerated above-mentioned hole transporting material skeleton, and these skeletons can be that nothing replaces or substituted.The electron transport substituent can be enumerated, furans, the pyrroles, thiophene, the thiophene dioxide, pyrazoles, imidazoles, triazole, tetrazolium, the  azoles, the  diazole, thiazole, thiadiazoles, pyridine, pyridazine, pyrimidine, pyrimidone, pyrazine, triazine, form the benzofuran of fused rings with these, dibenzofurans, indoles, carbazole, benzothiophene, the benzothiophene dioxide, dibenzothiophenes, benzimidazole, the phenanthro-imidazoles, benzoxazol, benzothiazole, quinoline, benzoquinoline, quinoxaline, quinazoline, naphthyridines, phenanthridines, phenanthroline, imidazopyridine, aromatic heterocycle or benzene such as azophenlyene quinoxaline, naphthalene, anthracene, luxuriant and rich with fragrance, pyrene, styrene, 1, electron transport materials skeletons such as aromatic hydrocarbon such as 2-talan, these skeletons can not have replacement or are substituted.The photism substituting group can be enumerated above-mentioned luminescent material (material of main part, dopant material) skeleton, and these skeletons can not have replacement or are substituted.Preferred fluorenyl, phenanthryl, anthryl, pyrenyl, the perylene bases etc. of using condense poly radical derivatives such as aromatic rings or biphenyl, terphenyl, connection four benzene, diphenylacetylene etc.Film forms substituent and preferably uses alkyl, alkoxyl, aryl ether etc.According to these functional substituent kinds, spiro-compound of the present invention can use in each layer of light-emitting component.
Functional substituent number, preferred 1～4, more preferably 2 or 4, further preferred 2.Functional substituent position, preferred R 2, R 4, R 5, R 7, R 10, R 12, R 13, R 15, more preferably R 2, R 7, R 10, R 15, further preferred R 2, R 10
The preferred carbon atom of Z, A 1, A 2One of singly-bound preferably.If A 2Be singly-bound, A 1Preferred oxygen, sulphur, more preferably oxygen.Because the compound shown in the general formula (1) has three-dimensional asymmetric center framework, be to prevent crystallization therefore, the compound of thin film stability excellence.
As above-mentioned spiro-compound, the concrete structure that can be listed below.
Figure A20061014310300211
Figure A20061014310300221
Figure A20061014310300231
Synthesizing of the three-dimensional asymmetric center skeleton of compound shown in the following mutual-through type (1), describe to three-dimensional asymmetric center skeleton import feature substituent.
Three-dimensional asymmetric center skeleton shown in the general formula (1) can be with 9, and what 9 '-spiral shell, two fluorenes were same synthesizes, and use 9-xanthene ketone to replace the 9-Fluorenone, can obtain spiral shell xanthene fluorenes.Use the 9-thioxanthones can obtain spiral shell thioxanthene fluorenes, use N-butyl-acridone can obtain spiral shell N-butyl bifurcation pyridine fluorenes, use anthrone can obtain spiral shell dihydroanthracene fluorenes, in addition, use cycloheptanone can obtain spiral shell dihydro-dibenzo cyclobutane fluorenes.To the functional substituent importing of three-dimensional asymmetric center skeleton, can directly carry out, but preferably at first import reactive substituents, the method for import feature substituent then.As reactive substituents, can enumerate formoxyl, acetyl group, iodo, bromo, amino, cyano group, nitro, hydroxyl, carboxylic acid and derivative thereof, α-diketo etc.Though below put down in writing several reactive substituents, also can make for other linking group to use the same method.
The introductory technique of acetyl group as mentioned above, 1, at 50 ℃ and chloroacetic chloride and aluminium reaction, is handled three-dimensional asymmetric center skeleton in the 2-dichloroethanes with conventional method, can import acetyl group.Change the equivalent of chloroacetic chloride and aluminium chloride, can obtain 1～4 and replace body.
The importing of iodo, as mentioned above, make three-dimensional asymmetric center skeleton in 80% acetate 80 ℃ with iodine and periodic acid 2 hydrate reactions, handle with conventional method, or in carbon tetrachloride, react with iodine and two (trifluoroacetyl oxygen) iodobenzene at 50～60 ℃, handle with conventional method, can import iodo.
The importing of bromo as mentioned above, makes three-dimensional asymmetric center skeleton at room temperature and bromine reaction, handles with conventional method, can import bromo.Change the bromine equivalent and can obtain 1～4 replacement body.
The importing of reactive substituents for other can import according to conventional method.
About the functional substituent importing after the reactive substituents importing to linking group; can enumerate from acetyl group and import phenanthroline base, benzoquinoline base, indyl etc.; import pyridine radicals, bipyridine base, phenanthroline base, diphenylethylene, polyphenylene, normal-butyl, diphenyl amino, carbazyl etc. from iodo, bromo; import azole from carboxylic acid and derivative thereof; heterocyclic radicals such as benzazoles, diazoles, triazole type; from heterocyclic radicals such as α-diketone or amino importing quinoxalines, this is had no particular limits.Enumerate the example of importing below, still also can make to use the same method for other linking group.
Importing about the phenanthroline base; as mentioned above; there is the acetyl matrix that makes three-dimensional asymmetric center skeleton in  alkane, to react down with 8-amino-7-quinoline aldehyde, potassium hydroxide at 60 ℃; handle with conventional method; or make the iodine body or the bromine body and function lithium metal lithiumation of three-dimensional asymmetric center skeleton; then with anhydrous phenanthroline reaction, the method that water, manganese dioxide are handled.
The introductory technique of benzoquinoline base, as mentioned above, the acetyl matrix that makes three-dimensional asymmetric center skeleton in  alkane 60 ℃ down with 1-amino-2-naphthaldehyde, potassium hydroxide reaction, can import with the conventional method processing.
The importing of diphenylethylene can be enumerated SPIE as a reference, vol.3797 the 317th page " 2.1EM1 is synthetic " etc.In the bromine body of three-dimensional asymmetric center skeleton, add diphenylethlene ylboronic acid, sodium carbonate, tetrakis triphenylphosphine palladium catalyst, in water-toluene,, handle, can import diphenylacetylene with conventional method 100 ℃ of reactions.Can import polyphenylene equally.
The importing of normal-butyl makes bromine body n-BuLi reaction under room temperature in THF of three-dimensional asymmetric center skeleton, handles with conventional method, can import normal-butyl.Can handle unreacted bromo residual when the bromine body of linking group imports the above-mentioned functions substituent, it also is favourable that film is formed property.
The importing of indyl can be enumerated as a reference, Tetrahedron Letters, the flow process that vol.40 (1999) is the 7312nd page.With acetyl matrix and 1-methyl isophthalic acid-phenyl hydrazine reflux in ethanol of three-dimensional asymmetric skeleton, further reflux is handled with conventional method behind the adding acetate; obtain the hydrazine body; with its in polyphosphoric acid 160 ℃ of heating, handle with conventional method, can import indyl.
The importing of diphenyl amino can be enumerated SPIE as a reference, vol.3797 the 317th page " 2.1HTM1 is synthetic " etc.In the bromine body of three-dimensional asymmetric skeleton, add diphenylamine, sodium tert-butoxide, 2,2 '-two (diphenylphosphine)-1,1 '-dinaphthyl, acid chloride, reflux in toluene is handled with conventional method, can import diphenyl amino.Can import carbazyl equally.
Below, the tetraphenylmethane derivative shown in the formula of of the present invention (2) is described.
R 17～R 36Be selected from hydrogen, alkyl, cycloalkyl, aralkyl, alkenyl, cycloalkenyl group, alkynyl, hydroxyl, sulfydryl, alkoxyl, alkylthio group, aryl ether group, fragrant thioether group, aryl, heterocyclic radical, halogen, halogenated paraffin, halogenated olefine, halo alkynes, cyano group, aldehyde radical, carbonyl, carboxyl, ester group, carbamoyl, amino, nitro, silicyl, siloxy group, and adjacent substituting group between form ring structure.Condition is R 17～R 36In at least one is to be selected from the substituting group shown in the general formula (3).
-X-Ar (3)
X is singly-bound or selects that Ar represents fused aromatic rings, hetero-aromatic ring from following.But when X was phosphorous oxides, Ar represented aromatic hydrocarbon, hetero-aromatic ring.
Figure A20061014310300261
-O- -S-
N represents natural number.
These substituent explanations are identical with the compound of above-mentioned general formula (1).The aromatic rings that condenses of general formula (3) is naphthalene, anthracene, phenanthrene, pyrene etc., and these can be that what do not have to replace also can be substituted.Hetero-aromatic ring is a furans, the pyrroles, thiophene, the thiophene dioxide, pyrazoles, imidazoles, triazole, tetrazolium, the  azoles, the  diazole, thiazole, thiadiazoles, pyridine, pyridazine, pyrimidine, pyrimidone, pyrazine, triazine, form the benzofuran of fused rings with these, dibenzofurans, indoles, carbazole, benzothiophene, the benzothiophene dioxide, dibenzothiophenes, benzimidazole, the phenanthro-imidazoles, benzoxazol, benzothiazole, quinoline, benzoquinoline, quinoxaline, quinazoline, naphthyridines, phenanthridines, phenanthroline, imidazopyridine, azophenlyene etc., these can be that what do not have to replace also can be substituted.
According to these substituent kinds, tetraphenylmethane derivative of the present invention can use in each layer of light-emitting component.
Have no particular limits for substituent number shown in the general formula (3), but preferred 1～4, more preferably 2 or 4.In the time of 1, be difficult to the substituent function of performance, synthetic or purification difficult in the time of 3.
Have no particular limits for substituent position shown in the general formula (3), but from synthesizing the viewpoint of easiness, preferred R 18, R 19, R 20, R 23, R 24, R 25, R 28, R 29, R 30, R 33, R 34, R 35, from more preferably R of stable on heating viewpoint 19, R 24, R 29, R 34
Tetraphenylmethane skeleton synthetic can be enumerated as a reference, the 1098th page of Angew.Chem.Int.Ed.Engl.Vol.25 (1986) No.12, or Tetrahedron Letters, the 1487th page of vol.38 (1997) etc.In solvent-free or acetic acid solvent, with triphenylcarbinol or trityl group chlorine and aniline or anilinechloride reaction under 100 ℃～220 ℃, the gained intermediate is handled separation with conventional method, then in the mixed solvent of ethanol/sulfuric acid,-10 ℃ of following and isopentyl nitrogenize thing reactions, add the phosphonic acids reflux, handle with conventional method.
About the substituting group of general formula (3), can use and import the tetraphenylmethane skeleton to the same method of the introductory technique of above-mentioned spiro-compound import feature substituent.
As above-mentioned tetraphenylmethane derivative, can enumerate following structure.
Figure A20061014310300281
The formation method of each layer can be enumerated resistance heating evaporation, electron beam evaporation plating, sputter, molecule lamination method, coating etc.Usually, resistance heating evaporation, electron beam evaporation plating are preferred aspect characteristic.The thickness of layer owing to depend on the resistance value of luminescent substance, therefore can't limit, but select between 1～1000nm.
Electric energy mainly is meant direct current, but also can use pulse current or alternating current.Have no particular limits for current value and magnitude of voltage, still consider the consumption electric power of element, the life-span should be to obtain maximum brightness with the low energy of trying one's best.
Matrix among the present invention is meant, shows with pixel it is the product of clathrate configuration, with the set display text or the image of pixel.The shape of pixel, big I determine according to purposes.In the image and literal demonstration of PC, monitor, TV, usually using on one side is 300 μ m or following square pixels, in giant displays such as display panel, using on one side is the pixel of mm level, when monochrome shows, can the same color pixel of assortment, but when colour showed, the pixel of arranging red, green, blue showed.At this moment, triangular form and stripe are typically arranged.As the driving method of this matrix, can be line successively method of driving or the activation matrix method in any one.Drive Structure is simple successively owing to line, and activation matrix manipulation excellence need be used respectively according to purposes.
Segment type among the present invention is meant, forms figure so that show the information that is predetermined, and makes the field of decision luminous.Specifiable have, and the time of digital clock and watch or thermometer or temperature show that operating states such as acoustics or electromagnetism conditioner show, automobile instrument panel demonstration etc.In addition, aforementioned matrix shows and the section demonstration also can coexist in same plate.
Light-emitting component of the present invention is also preferred to be used as back of the body illuminator.Back of the body illuminator mainly is to use in the purpose of the visuality that improves non-self-emission display apparatus, can be used for using in liquid crystal indicator, clock and watch, acoustics, automobile instrument panel, display panel, the sign etc.Liquid crystal indicator particularly, former PC is formed by fluorescent lamp or light guide plate, so slimming is difficult, but the back of the body illuminator of the light-emitting component of the application of the invention can be realized slim, light weight.
Below, the present invention will be described to enumerate embodiment and comparative example, but the present invention is not limited to these examples.In addition, be summarized in the table 1 and table 2 at end in its condition and the result set.
Embodiment 1 (synthesizing of linking group-1)
Use magnesium metal 2.2g to make 2-bromo biphenyl 14.8g Grignard reagentization in THF, under room temperature to 50 ℃,, handle then, obtain 9-(2-biphenyl)-9-xanthenol with conventional method with 9-xanthene ketone 12.3g reaction.With its thermal dehydration in the acetate that has added small amount of hydrochloric acid, handle with conventional method, obtain linking group shown in the following formula-1 (8.5g). 1H-NMR(CDCl 3，ppm)：7.8(d，2H)、7.2(t，2H)、7.2(m，8H)、6.8(t，2H)、6.4(d，2H)
Figure A20061014310300311
Concatenating group-1
Embodiment 2 (synthesizing of linking group-2)
Use magnesium metal 1.7g with 2-bromo biphenyl 11.9g Grignard reagentization in THF, under room temperature to 50 ℃, with 2,4-diethyl-9-thioxanthones 13.4g reaction is handled with conventional method, obtains 2,4-diethyl-9-(2-biphenyl)-9-thioxanthene phenol then.With its thermal dehydration in the acetate that has added small amount of hydrochloric acid, handle with conventional method, obtain linking group shown in the following formula-2 (13.8g).1H-NMR(CDCl 3，ppm)：7.8(m，2H)、7.6(d，2H)、7.4(m，3H)、7.2(m，2H)、7.1(t，1H)、6.9(s，1H)、6.8(t，1H)、6.5(d，1H)、6.2(s，1H)、2.9(m，2H)、2.3(m，2H)、1.4(t，3H)、0.9(t，3H)
Figure A20061014310300312
Concatenating group-2
Embodiment 3 (imports acetyl group: linking group-1 ') on linking group-1
Make linking group-1 (8.5g) 1,50 ℃ of following and chloroacetic chloride 4.5g and aluminium chloride 7.5g reactions, handle in the 2-dichloroethanes, obtain linking group-1 ' shown in the following formula (13.1g) with conventional method.1H-NMR(CDCl 3，ppm)：8.0(d，1H)、7.9(d，2H)、7.8(d，1H)、7.7(s，1H)、7.4(t，1H)、7.3-7.1(m，5H)、7.0(s，1H)、6.8(t，1H)、6.3(d，1H)、2.5(s，3H)、2.3(s，3H)
Figure A20061014310300313
Concatenating group-1
Embodiment 4 (synthesizing of benzoquinoline derivative (BQ-1))
Use magnesium metal 3.4g with 2-bromo biphenyl 23.8g Grignard reagentization in THF, under room temperature to 50 ℃,, handle then, obtain 9-(2-biphenyl)-9-fluorenes phenol with conventional method with 9-Fluorenone 18.0g reaction.With its thermal dehydration in the acetate that has added small amount of hydrochloric acid, handle the company of obtaining 9,9 '-spiral shell connection (two) fluorenes (18.5g) with conventional method.Then, the company of making 9,9 '-spiral shell connection (two) fluorenes (15.8g) 50 ℃ of following and chloroacetic chloride 8.6g and aluminium chloride 14.7g reactions, is handled with conventional method in the 2-dichloroethanes 1, obtains 2,2 '-diacetyl-9,9 '-spiral shell, two fluorenes (11.2g).This diacetyl matrix (2.3g) is descended and 1-amino-2-naphthaldehyde 2.0g at 60 ℃ in two  alkane, and potassium hydroxide 1.6g reaction is handled with conventional method, obtains the Q-1 of compd B shown in the following formula (1.5g).1H-NMR(CDCl 3，ppm)：9.4(d，2H)、8.6(d·d，2H)、8.1(d，2H)、8.0(t，4H)、7.8(d，2H)、7.8-7.6(m，12H)、7.4(t，2H)、7.2(t，2H)、6.8(d，2H)
Figure A20061014310300321
Embodiment 5 (synthesizing of benzoquinoline derivative (BQ-2,3))
Use tetra-acetylated body to react similarly to Example 4, handle, obtain BQ-2 shown in the following formula and BQ-3 with conventional method.
Figure A20061014310300322
BQ-2：1H-NMR(CDCl 3，ppm)：9.39(d，4H)、8.72(d，4H)、8.27(d，4H)、8.03(d，4H)、7.84-7.55(m，24H)、7.32(d·d·d，4H)
BQ-3：1H-NMR(CDCl3，ppm)：9.36(d，3H)、8.72((d·d，1H)、8.66(d·d，2H)、8.24(d，1H)、8.23(d，2H)、8.12-8.03(m，6H)、7.87-7.49(m，21H)、2.46(s，3H)
Embodiment 6 (synthesizing of phenanthroline derivative (Phen-1))
Linking group-1 ' (5.0g) is descended and 8-amino-7-quinoline aldehyde 5.2g at 60 ℃ in two  alkane, and potassium hydroxide 5.0g reaction is handled with conventional method, obtains the Phen-1 shown in the following formula (5.8g).1H-NMR(CDCl3，ppm)：9.2(d，2H)、8.8(d，1H)、8.5(d，1H)、8.2(m，3H)、8.1(t，2H)、7.9(t，2H)、7.7-7.5(m，8H)、7.4(m，1H)、7.3-7.2(m，5H)、7.1(s，1H)、6.8(t，1H)、6.5(d，1H)
Figure A20061014310300332
Embodiment 7 (synthesizing of phenanthroline derivative (Phen-2))
Tetraphenylmethane 2.5g, aluminium chloride 2.08g, chloroacetic chloride 1.22ml are joined 1, among the 2-dichloroethanes 100ml, room temperature reaction 1.5 hours, then 70 ℃ of reactions 2 hours.Handle with conventional method, obtain diacetyl tetraphenylmethane 1.03g. 1H-NMR(CDCl3，ppm)：7.86(d，4H)、7.35(d，4H)、7.24(m，10H)
Above-mentioned diacetyl tetraphenylmethane 1.0g is descended and 8-amino-7-quinoline aldehyde 1.06g at 60 ℃ in two  alkane, and potassium hydroxide 1.0g reaction is handled with conventional method, obtains the Phen-2 shown in the following formula (1.21g). 1H-NMR(CDCl3，ppm)：9.21(d·d，2H)、8.31-8.19(m，8H)、8.07(d，2H)、7.76(q，4H)、7.62(d·d，2H)、7.50(d，4H)、7.39-7.20(m，10H)
Embodiment 8 (synthesizing of phenanthroline derivative (Phen-3))
With 2; 2 '-'-dibromobiphenyl 2.5g; 3-acetylbenzene ylboronic acid 3.9g, 2M sodium carbonate 21ml, tetrakis triphenylphosphine palladium (O) 0.37g joins 1; among the 2-dimethoxy ethane 200ml; refluxed under nitrogen 10 hours, carry out the Suzuki coupling reaction, handle with conventional method; obtain 2,2 '-two (3-acetylphenyl) biphenyl 0.57g.This diacetyl matrix 0.57g is descended and 8-amino-7-quinoline aldehyde 0.63g at 60 ℃ in two  alkane, and potassium hydroxide 0.6g reaction is handled with conventional method, obtains the Phen-3 shown in the following formula (0.76g). 1H-NMR(CDCl3，ppm)：9.20(d·d，2H)、8.43(d，2H)、8.16(d·d，2H)、7.79(d，2H)、7.61-7.26(m，18H)、7.17(t，2H)、6.77(d，2H)
Embodiment 9 (synthesizing of phenanthroline derivative (Phen-4))
With 6,6 '-two (fluoroform sulphonyl oxygen)-3,3; 3 ', 3 '-tetramethyl-1,1 '-spiral shell di-indane 2.5g; 4-acetylbenzene ylboronic acid 2.2g, 2M sodium carbonate 12ml, tetrakis triphenylphosphine palladium (O) 0.40g joins in the mixed solvent of toluene 50ml, ethanol 30ml; refluxed under nitrogen 12 hours, carry out the Suzuki coupling reaction, handle with conventional method; obtain 6,6 '-two (4-acetylphenyls)-3,3; 3 ', 3 '-tetramethyl-1,1 '-spiral shell di-indane 1.5g.This diacetyl matrix 1.50g is descended and 8-amino-7-quinoline aldehyde 1.26g at 60 ℃ in two  alkane, and potassium hydroxide 0.9g reaction is handled with conventional method, obtains the Phen-4 shown in the following formula (1.40g). 1H-NMR(CDCl3，ppm)：9.21(d，2H)、8.35(d，4H)、8.25(t，4H)、8.09(d，2H)、7.80-7.59(m，12H)、7.34(d，2H)、7.24(d，2H)、2.46(d，4H)、1.52(s，6H)、1.46(s，6H)
Figure A20061014310300351
Embodiment 10 (synthesizing of phenanthroline derivative (Phen-5))
Spiral shell is starched alkane 4.0g, and aluminium chloride 3.3g, chloroacetic chloride 2.0ml add 1, among the 2-dichloroethanes 200ml, room temperature reaction 1 hour, 60 ℃ of reactions 6 hours, handle with conventional method then, obtain triacetyl spiral shell slurry alkane 3.26g.Make this triacetyl matrix 1.41g in two  alkane 60 ℃ with 8-amino-7-quinoline aldehyde 1.50g, potassium hydroxide 1.50g reaction is handled with conventional method, obtains the Phen-5 shown in the following formula (1.32g).
Figure A20061014310300352
Embodiment 11 (synthesizing of phenanthroline derivative (Phen-6))
Make 2, at 60 ℃ of following and 5-amino-6-quinoline aldehyde 1.31g, potassium hydroxide 1.0g reaction is handled with conventional method, obtains the Phen-6 shown in the following formula (0.29g) in two  alkane for 2 '-diacetyl-9,9 '-spiral shell, two fluorenes 1.52g. 1H-NMR(CDCl3，ppm)：9.57(d，2H)、8.99(d·d，2H)、8.57(d·d，2H)、8.11(d·d，4H)、7.98(t，4H)、7.84(d，2H)、7.81(d，2H)、7.61-7.56(m，4H)、7.45(t，2H)、7.18(t，2H)、6.87(d，2H)
Figure A20061014310300353
Embodiment 12 (synthesizing of 7-naphthyridine derivatives (TPM-dNTR))
The diacetyl tetraphenylmethane 0.77g that will obtain according to the method for record among the embodiment 7 reacts with the amino cigarette aldehyde of 2-0.51g, potassium hydroxide 0.76g in two  alkane, handles with conventional method, obtains the TPM-dNTR shown in the following formula (0.82g). 1H-NNR(CDCl3，ppm)：9.12(d·d，2H)、8.27-8.16(m，8H)、8.00(d，2H)、7.49-7.44(m，6H)、7.34-7.23(m，10H)
Embodiment 13
With lamination the glass substrate of 150nmITO transparent conductive film (Asahi Glass (strain) system, 15 Ω/, electron beam evaporation plating product) be cut to 30 * 40mm, carry out etching.The gained substrate is used ultrasonic washing 15 minutes respectively in acetone, " Semico-Clean ", clean with ultra-pure water afterwards.Used the isopropyl alcohol ultrasonic washing then 15 minutes, 15 minutes dryings of dipping in hot methanol.This substrate is made element carry out 1 hour UV-ozone treatment before, be arranged on then in the vacuum deposition apparatus, exhaust makes the vacuum degree in the vacuum plant reach 1 * 10 -5Below the Pa.Be heated by resistive method,, follow N as the second hole transporting layer lamination 50nm at first as first hole transporting layer evaporation CuPc (CuPc) 10nm, N '-diphenyl-N, N '-two (1-naphthyl)-1,1 '-diphenyl-4,4 '-diamines (α-NPD).Use three (oxine) aluminium (III) (Alq3) as material of main part then, 2,3,5,6-tetrahydrochysene-9-(2-[4-morpholinodithio base)-quinolizino-[9,9a, 1-gh] cumarin (coumarin-1) makes dopant reach 1.0 weight % as dopant material
It is thick that common evaporation luminescent layer partly reaches 25nm.Then, as the thick ETM1 as follows of electron supplying layer lamination 25nm.Elements doped lithium 0.2nm, last evaporation 150nm aluminium is made into the tetragonal element of 5 * 5mm as negative electrode.The ionization potential of electron supplying layer is 6.07eV, and molecular weight is 672, and the glass transition temperature is 219 ℃, and the cold junction crystallization temperature is 352 ℃.The ionization potential of luminescent layer is 5.78eV, with the ionization potential difference of luminescent layer be 0.29eV.Apply the applied voltage of 10V, can obtain green emitting based on the dopant material of peak luminous wavelength 523nm from this light-emitting component, luminosity is 38000cd/m 2In addition, be 80% through the initial stage brightness conservation rate after 500 hours after the energising of this light-emitting component, kept the light-emitting area of homogeneous.
Figure A20061014310300371
Comparative example 1
Except use Alq3 as electron supplying layer, with embodiment 13 identical making light-emitting components.The ionization potential of Alq3 is 5.79eV, and molecular weight is 459, and the glass transition temperature is 180 ℃.Apply the applied voltage of 10V, can obtain green emitting based on the dopant material of peak luminous wavelength 523nm from this light-emitting component, luminosity is 6000cd/m 2
Comparative example 2
Except using 2 as electron supplying layer, 9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP) in addition, with embodiment 13 identical making light-emitting components.The ionization potential of BCP is 6.2eV, and molecular weight is 360, and crystallized temperature is 77 ℃.Apply the applied voltage of 10V, can obtain green emitting based on the dopant material of peak luminous wavelength 523nm from this light-emitting component, luminosity is 12000cd/m 2But, the energising of this light-emitting component after 500 hours initial stage brightness conservation rate below 50%, on light-emitting area, can see spot.
Embodiment 14
Except luminescent layer partly uses 4, beyond the mixture of 4 '-two (N-carbazyl) biphenyl (CBP) and three (2-phenylpyridine) complex of iridium (Ir (ppy) 3) (the amount 8 weight % of complex of iridium) the lamination 20nm, with embodiment 13 identical making light-emitting components.Apply the applied voltage of 6V, can obtain green emitting based on the indium complex of peak luminous wavelength 515nm from this light-emitting component, luminosity is 1000cd/m 2Like this, electron transport materials of the present invention also can effectively be brought into play function in luminescent material has used the element of phosphor material.
Embodiment 15
Except use EM1 as follows as luminescent material, with embodiment 13 identical making light-emitting components.Apply the applied voltage of 15V, can obtain blue-light-emitting based on peak luminous wavelength 463nm from this light-emitting component, luminosity is 8000cd/m 2Like this, electron transport materials of the present invention also can effectively be brought into play function in blue light emitting device.
Figure A20061014310300381
Embodiment 16
Except luminescent layer partly uses 1,4-diketone-2,5-two (3, the 5-dimethyl benzyl)-3, two (4-aminomethyl phenyl) pyrrolo-[3, the 4-c] pyrroles (DPP-1) of 6-use EM2 as follows as dopant material as material of main part, make dopant reach 1.0wt% altogether evaporation 15nm thick outside, with embodiment 13 identical making light-emitting components.
Figure A20061014310300382
Comparative example 3
Except use Alq3 as electron supplying layer, with the embodiment 16 identical light-emitting components of manufacturing.
Embodiment 17
Except use the Phen-3 shown in the embodiment 8 as electron supplying layer, with the embodiment 16 identical light-emitting components of manufacturing.The ionization potential of electron supplying layer is 6.14eV, and molecular weight is 663, and the glass transition temperature is 150 ℃.
Embodiment 18
Except using 1 as material of main part, 4-diketone-2, two (the 4-methyl-benzyls)-3 of 5-, two (1-naphthyl) pyrrolo-[3, the 4-c] pyrroles (DPP-2) of 6-in addition, with the embodiment 16 identical light-emitting components of manufacturing.
Embodiment 19
Except using 1 as material of main part, 4-diketone-2,5-dibenzyl-3, two (1-naphthyl) pyrrolo-[3, the 4-c] pyrroles (DPP-3) of 6-in addition, with the embodiment 16 identical light-emitting components of manufacturing.
Embodiment 20
Except using 1 as material of main part, 4-diketone-2, two (the 4-isopropyl benzyls)-3 of 5-, two (1-naphthyl) pyrrolo-[3, the 4-c] pyrroles (DPP-4) of 6-in addition, with the embodiment 16 identical light-emitting components of manufacturing.
Embodiment 21
Except using 1 as material of main part, 4-diketone-2,5-diethyl-3, two (1-naphthyl) pyrrolo-[3, the 4-c] pyrroles (DPP-5) of 6-use beyond the EM3 shown in following as dopant material, with the embodiment 16 identical light-emitting components of manufacturing.
Figure A20061014310300401
Embodiment 22
Except using 1 as material of main part, 4-diketone-2, two (the 4-methyl-benzyls)-3 of 5-, 6-is two (1-(4-tolyl) pyrrolo-[3,4-c] pyrroles (DPP-6) in addition, with the embodiment 21 identical light-emitting components of manufacturing.
Electron transport materials of the present invention be applicable to emitting red light light spare embodiment 16～22 the results are shown in table 1.The electron transport materials of the application of the invention has obtained the emitting red light of high color purity, high brightness.
Embodiment 23
Except luminescent layer partly uses the BQ-1 of embodiment 4 as material of main part, use 4,4-two fluoro-1,3,5,7,8-tetramethyl-4-boron is mixed-3a, 4a-diaza benzo two indenes (PM-1) reach doping content 0.5% as dopant, use same BQ-1 as beyond the electron supplying layer, with embodiment 13 identical making light-emitting components.Apply the applied voltage of 11V, can obtain green emitting based on the dopant material of peak luminous wavelength 519nm from this light-emitting component, luminosity is 8000cd/m 2
Embodiment 24
Till the lamination of hole transporting material, all carry out similarly to Example 13.Then, it is thick to reach 15nm as luminescent material lamination Alq3, then, as the electron transport materials lamination as follows ETM2 to reach 35nm thick.Follow elements doped lithium 0.2nm, last AM aluminum metallization 150nm manufactures the tetragonal element of 5 * 5mm as negative electrode.The ionization potential of electron supplying layer is 5.97eV, and molecular weight is 609, and the glass transition temperature is 112 ℃.The ionization potential of luminescent layer is 5.79eV, with the ionization potential difference of luminescent layer be 0.18eV.
Figure A20061014310300411
Comparative example 4
Except the thickness as the Alq3 of luminescent material is 50nm, do not use beyond the electron transport materials, with the embodiment 24 identical light-emitting components of manufacturing.
Comparative example 5
Except using BCP as the electron transport materials, with the embodiment 24 identical light-emitting components of manufacturing.
Embodiment 25
Except the BQ-1 that uses embodiment 4 as the electron transport materials, with the embodiment 24 identical light-emitting components of having manufactured.The ionization potential of electron supplying layer is 6.09eV, and molecular weight is 670, and the glass transition temperature is 165 ℃.With the ionization potential difference of luminescent layer be 0.30eV.
The result of embodiment 24,25 and the result of comparative example are shown in Table 1 in the lump.Benzoquinoline derivative of the present invention also can effectively play a role as electron transport materials.
Embodiment 26
Except use following shown in EM4 as the luminescent material, with the embodiment 24 identical light-emitting components of having manufactured.Apply the applied voltage of 15V, can obtain blue-light-emitting based on the EM4 of peak luminous wavelength 465nm from this light-emitting component, luminosity is 1200cd/m 2Luminous efficiency is 1.0cd/A.Benzoquinoline derivative of the present invention also can effectively play a role with electron transport materials as blue light emitting device.
Figure A20061014310300421
Comparative example 6
Except the thickness as the EM4 of luminescent material is 50nm, do not use beyond the electron transport materials, with the embodiment 26 identical light-emitting components of having manufactured.Apply the applied voltage of 15V, can obtain blue-light-emitting from this light-emitting component, but luminosity is 110cd/m based on the EM4 of peak luminous wavelength 465nm 2Luminous efficiency 0.1cd/A.
Embodiment 27
Except luminescent layer partly uses three (5,7-diphenyl-oxine) aluminium (III) (Al (dPhq) 3) is as material of main part, use 4,4-two fluoro-1,3,5,7-tetraphenyl-4-boron is mixed-3a, 4a-diaza benzo two indenes (PM-2) reach doping content 1.0 weight % as dopant, and evaporation reaches beyond the thickness 15nm altogether, with embodiment 24 identical making light-emitting components.Apply the applied voltage of 10V, can obtain emitting red light based on the dopant material of peak luminous wavelength 615nm from this light-emitting component.The electron transport materials that benzoquinoline derivative of the present invention is used as red light-emitting component also can effectively play a role.
Comparative example 7
Except use Alq3 as electron transport materials, with embodiment 27 identical making light-emitting components.Apply the applied voltage of 10V, from this light-emitting component fail emitting red light, near 535nm, produced the orange luminescence at shoulder peak at glow peak wavelength with 615nm.
Embodiment 28
Except the BQ-2 that uses embodiment 5 as the electron supplying layer, with the embodiment 13 identical light-emitting components of having made.Apply the applied voltage of 10V, can obtain green emitting based on the dopant material of peak luminous wavelength 523nm from this light-emitting component, luminosity is 20000cd/m 2The electron transport materials that benzoquinoline derivative of the present invention is used as green luminousing element also can effectively play a role.
Embodiment 29
Except the BQ-3 that uses embodiment 5 as the electron supplying layer, with the embodiment 16 identical light-emitting components of having made.Apply the applied voltage of 14V, can obtain emitting red light based on the dopant material of peak luminous wavelength 618nm from this light-emitting component, luminosity is 7500cd/m 2The electron transport materials that benzoquinoline derivative of the present invention is used as red light-emitting component also can effectively play a role.
Embodiment 30
Except luminescent layer partly uses three (oxine) aluminium (III) (Alq3) as material of main part, use 3-(2-[4-morpholinodithio base)-7-diethyl amino coumarin (cumarin-2) as dopant material, lamination 25nmETM2 is as beyond the electron supplying layer, with embodiment 13 identical making light-emitting components.The ionization potential of luminescent layer is 5.78eV, and the ionization potential of electron supplying layer is 5.97eV, and the ionization potential difference of electron supplying layer and luminescent layer is 0.19eV.In addition, the molecular weight of ETM2 is 609, and the glass transition temperature is 112 ℃.Apply the applied voltage of 10V, can obtain green emitting based on the dopant material of peak luminous wavelength 513nm from this light-emitting component.Luminosity is 5000cd/m 2In addition, the initial stage brightness conservation rate of this light-emitting component energising after 500 hours is 70%, kept the light-emitting area of homogeneous.
Comparative example 8
Except using Alq3 as the electron supplying layer, with the embodiment 30 identical light-emitting components of having made.The ionization potential of electron supplying layer is 5.79eV, and the ionization potential difference of electron supplying layer and luminescent layer is 0.01eV.In addition, the molecular weight of Alq3 is 459, and the glass transition temperature is 180 ℃.Apply the applied voltage of 10V, can obtain green emitting based on the dopant material of peak luminous wavelength 513nm from this light-emitting component.Luminosity is 3000cd/m 2
Comparative example 9
Except using 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP) are as beyond the electron supplying layer, with the embodiment 30 identical light-emitting components of having made.The ionization potential of electron supplying layer is 6.20eV, and the ionization potential difference of electron supplying layer and luminescent layer is 0.42eV.In addition, the molecular weight of BCP is 360, and crystallized temperature is 77 ℃.Apply the applied voltage of 10V, can obtain green emitting based on the dopant material of peak luminous wavelength 513nm from this light-emitting component.Luminosity is 8000cd/m 2The initial stage brightness conservation rate of this light-emitting component energising after 500 hours is below 50%, and light-emitting area can be seen spot.
Embodiment 31
Except luminescent layer partly uses EM4 as material of main part, use following shown in EM5 as beyond the dopant material, with the embodiment 30 identical light-emitting components of having made.The ionization potential of luminescent layer is 5.65eV, and the ionization potential difference of electron supplying layer and luminescent layer is 0.32eV.In addition, apply the applied voltage of 15V, can obtain blue-light-emitting based on the dopant material of peak luminous wavelength 477nm from this light-emitting component.Luminosity is 3500cd/m 2Like this, even electron transport materials of the present invention also can effectively play a role in blue light emitting device.
Embodiment 32
Except luminescent layer partly uses 1,4-diketone-2,5-two (3,5-di-t-butyl benzyl)-3, two (4-biphenyl) pyrrolo-[3, the 4-c] pyrroles (DPP-7) of 6-are as material of main part, use following shown in EM6 as dopant material, making dopant reach 1.0wt% is total to beyond the evaporation 15nm, with the embodiment 30 identical light-emitting components of having made.The ionization potential of luminescent layer is 5.79eV, and the ionization potential difference of electron supplying layer and luminescent layer is 0.18eV.In addition, apply the applied voltage of 14V, can obtain emitting red light based on the dopant material of peak luminous wavelength 629nm from this light-emitting component.Luminosity is 8000cd/m 2Like this, though electron transport materials of the present invention at emitting red light.Luminosity is 8000cd/m 2Like this, even electron transport materials of the present invention also can effectively play a role in red light-emitting component.
Figure A20061014310300451
Embodiment 33
Except the BQ-1 that uses embodiment 4 as the electron supplying layer, with the embodiment 32 identical light-emitting components of having made.The ionization potential of BQ-1 is 6.09eV, and the ionization potential difference of electron supplying layer and luminescent layer is 0.30eV.In addition, the molecular weight of BQ-1 is 670, and the glass transition temperature is 165 ℃, does not observe the cold junction crystallization temperature.Apply the applied voltage of 14V, can obtain emitting red light based on the dopant material of peak luminous wavelength 629nm from this light-emitting component.Luminosity is 9000cd/m 2Even electron transport materials of the present invention also can effectively play a role in red light-emitting component.
Comparative example 10
Except using Alq3 as the electron supplying layer, with the embodiment 32 identical light-emitting components of having made.The ionization potential difference of luminescent layer and electron supplying layer is 0eV.Apply the applied voltage of 10V, fail to obtain emitting red light, become the orange luminescence that peak luminous wavelength with 629nm has near the acromion the 535nm from this light-emitting component.
Embodiment 34
Except as the thick Alq3 of luminescent layer lamination 15nm, then beyond the Phen-6 as the thick embodiment 11 of electron supplying layer lamination 35nm, with the embodiment 13 identical light-emitting components of having made.Apply the applied voltage of 10V, can obtain green emitting based on the Alq3 of peak luminous wavelength 536nm from this light-emitting component, luminosity is 4000cd/m 2In addition, this light-emitting component is 75% through the initial stage brightness conservation rate of energising after 500 hours, has kept the light-emitting area of homogeneous.
Embodiment 35
Operation before the evaporation is carried out similarly to Example 13.By electrical resistance heating, as hole-injecting material, the CuPc of evaporation 20nm, as hole transporting material, α-NPD of evaporation 100nm.Then, as the thick Alq3 of luminescent material lamination 50nm.Then, as electron transport materials, the Phen-1 of the embodiment 6 that lamination 100nm is thick.Behind the lithium of doping 0.5nm on the organic layer, evaporation 200nm aluminium is made the tetragonal element of 5 * 5mm as negative electrode then.Thickness is quartzy oscillatory type monitor show value.The ionization potential of electron supplying layer is 6.09eV, and molecular weight is 689, and the glass transition temperature is 197 ℃.The ionization potential of luminescent layer is 5.79eV, with the ionization potential difference of luminescent layer be 0.30eV.Can obtain emission wavelength 530nm from this light-emitting component, brightness 20000cd/m 2The high brightness green emitting.This light-emitting component has kept the brightness more than 80% in the time of 1000 hours.In addition, this light-emitting component is carried out 1mA pulsed drive (Duty is than 1/60, and the current value during pulse is 60mA) in the vacuum cell, confirm as good luminous.
Embodiment 36
Except as luminescent material, use Alq3 as material of main part, use 4-(dicyano the methylene)-2-tert-butyl group-6-(1 as dopant material, 1,7,7-tetramethyl julolidine groups-9-thiazolinyl)-4H-pyrans (DCJTB) reaches beyond the doping content 2%, with the embodiment 35 identical light-emitting components of having made.Can obtain emission wavelength 630nm from this light-emitting component, brightness 10000cd/m 2The high brightness orange luminescence.This light-emitting component has kept the brightness more than 80% in the time of 1000 hours.
Embodiment 37
Except using 4,4 '-two (diphenylacetylene) biphenyl (DPVBi) in addition, with the embodiment 35 identical light-emitting components of having made as material of main part.Can obtain emission wavelength 460nm from this light-emitting component, brightness 10000cd/m 2High-brightness blue luminous.
Embodiment 38
Except using DPP-1 as material of main part, use PM-2 to reach beyond the doping content 1% as dopant material, with the embodiment 35 identical light-emitting components of having made.Can obtain emission wavelength 610nm from this light-emitting component, brightness 10000cd/m 2The high brightness emitting red light.
Comparative example 11
Except using Alq3 as the electron transport materials, with the embodiment 38 identical light-emitting components of having made.Except having observed the emitting red light that sends from luminescent material, also observed the green emitting that sends from electron transport materials, the remarkable variation of colorimetric purity from this light-emitting component.
Embodiment 39
Except using 1,4-diketone-2,5-two (3,5-di-t-butyl benzyl)-3, two (3-anisyl) pyrrolo-[3, the 4-c] pyrroles (DPP-8) of 6-use 4 as material of main part, 4-two fluoro-1,3,5,7-four (4-aminomethyl phenyl)-8-phenyl-4-boron is mixed-3a, 4a-diaza benzo two indenes (PM-3) reach as dopant material beyond the doping content 1%, with the embodiment 35 identical light-emitting components of having made.Can obtain emission wavelength 625nm from this light-emitting component, brightness 10000cd/m 2The high brightness emitting red light.
Embodiment 40
Except using DPP-7 as material of main part, use 4, the 4-difluoro [3-phenyl-1-[(3-phenyl-2H-benzo [c] iso-indoles-1-yl) methylene]-1H-benzo [c] isoindolyl-N1, N2] borine (PM-4) reaches beyond the doping content 1% as dopant material, with the embodiment 35 identical light-emitting components of having made.Can obtain emission wavelength 635nm from this light-emitting component, brightness 10000cd/m 2The high brightness emitting red light.
Embodiment 41
Except using DPP-2, use 4,4-two fluoro-1 as material of main part, 3,5,7-four (4-hexyl phenyl)-4-boron is mixed-3a, 4a-diaza benzo two indenes (PM-5) reach as dopant material beyond the doping content 1%, with the embodiment 35 identical light-emitting components of having made.Can obtain emission wavelength 629nm from this light-emitting component, brightness 10000cd/m 2The high brightness emitting red light.
Embodiment 42
Except using DPP-3 as material of main part, use EM2 reaches beyond the doping content 1%, with the embodiment 35 identical light-emitting components of having made as dopant material.Can obtain emission wavelength 615nm from this light-emitting component, brightness 10000cd/m 2The high brightness emitting red light.
Embodiment 43
Except using DPP-5 as material of main part, use EM3 reaches beyond the doping content 1%, with the embodiment 35 identical light-emitting components of having made as dopant material.Can obtain emission wavelength 620nm from this light-emitting component, brightness 10000cd/m 2The high brightness emitting red light.
Embodiment 44
Except using 1,4-diketone-2,5-two (3, the 5-dimethyl benzyl)-3, two (4-ethylphenyl) pyrrolo-[3, the 4-c] pyrroles (DPP-9) of 6-use 4 as material of main part, 4-two fluoro-1,3,5,7-four (4-butyl phenyl)-8-phenyl-4-boron is mixed-3a, 4a-diaza benzo two indenes (PM-6) reach as dopant material beyond the doping content 1%, with the embodiment 35 identical light-emitting components of having made.Can obtain emission wavelength 615nm from this light-emitting component, brightness 10000cd/m 2The high brightness emitting red light.
Embodiment 45
Except the Phen-2 that uses embodiment 7 as the electron transport materials, with the embodiment 35 identical light-emitting components of having made.The ionization potential of electron supplying layer is 6.11eV, and molecular weight is 677, and the glass transition temperature is 175 ℃.The ionization potential of luminescent layer is 5.79eV, with the ionization potential difference of luminescent layer be 0.32eV.From this light-emitting component, can obtain emission wavelength 530nm, brightness 20000cd/m 2The high brightness green emitting.This light-emitting component has kept the brightness more than 80% in the time of 1000 hours.In addition, this light-emitting component is carried out 1mA pulsed drive (power ratio 1/60, the current value during pulse is 60mA) in the vacuum cell, confirm as good luminous.
Embodiment 46
Except the Phen-2 that uses embodiment 7 as the electron transport materials, made light-emitting component equally with embodiment 36.Can obtain emission wavelength 630nm from this light-emitting component, brightness 10000cd/m 2The high brightness reddish orange luminous.This light-emitting component has kept the brightness more than 80% in the time of 1000 hours.
Embodiment 47
Except the Phen-2 that uses embodiment 7 as the electron transport materials, made light-emitting component equally with embodiment 37.Can obtain emission wavelength 460nm from this light-emitting component, brightness 10000cd/m 2High-brightness blue luminous.
Embodiment 48
Except the Phen-2 that uses embodiment 7 as the electron transport materials, made light-emitting component equally with embodiment 38.Can obtain emission wavelength 610nm from this light-emitting component, brightness 10000cd/m 2The high brightness emitting red light.
Embodiment 49
Except the TMP-dNTR that uses embodiment 12 as the electron transport materials, made light-emitting component equally with embodiment 44.Can obtain emission wavelength 615nm from this light-emitting component, brightness 10000cd/m 2The high brightness emitting red light.
Embodiment 50
With lamination the glass substrate of 150nmITO transparent conductive film (Asahi Glass (strain) system, 15 Ω/, electron beam evaporation plating product) be cut into 30 * 40mm, be processed into the figure of pitch (residue width 270 μ m) * 32 striateds of 300 μ m with photoetching process.For ITO striped long side direction one side is connected with external electric easily, widens and be 1.27mm pitch width (opening portion width 800 μ m).The gained substrate is used ultrasonic washing 15 minutes respectively in acetone, " Semico-Clean 56 ", clean with ultra-pure water afterwards.Used the isopropyl alcohol ultrasonic washing then 15 minutes, 15 minutes dryings of dipping in hot methanol.This substrate is made element carry out 1 hour UV-ozone treatment before, be arranged on then in the vacuum deposition apparatus, exhaust makes the vacuum degree in the vacuum plant reach 5 * 10 -4Below the Pa.Be heated by resistive method, at first the CuPc of evaporation 10nm, then α-NPD of evaporation 50nm.Use Alq3 as material of main part then, coumarin-1 is as dopant material, make dopant reach 1.0 weight % altogether the evaporation luminescent layer partly to reach 25nm thick.Then, as the thick ETM1 of electron supplying layer lamination 25nm.The ionization potential of electron supplying layer is 6.07eV, and molecular weight is 672, and the glass transition temperature is 219 ℃, and the cold junction crystallization temperature is 352 ℃.Use peristome (the residue width 50 μ m that on the Kovar alloy plate, are provided with 16 250 μ m then by wet etch method, be equivalent to 300 μ m pitches) mask, carry out the mask exchange in a vacuum and make it and ITO striped quadrature, fix so that mask and ito substrate adherence from the inside with magnetite.Then, behind the elements doped lithium 0.5nm, AM aluminum metallization 200nm makes 32 * 16 dot matrix elements in organic layer.The display text (cross talk) of when this element is used matrix driving, can not getting lines crossed.
Embodiment 51
Except the Phen-6 that uses embodiment 11 as the electron supplying layer, made 32 * 16 dot matrix elements equally with embodiment 50.When this element is used matrix driving, the display text that can not get lines crossed.
Embodiment 52
Except the Alq3 of lamination 25nm as luminescent layer, the thick ETM2 of lamination 25nm has made 32 * 16 dot matrix elements as beyond the electron supplying layer equally with embodiment 50.When this element is used matrix driving, the display text that can not get lines crossed.
Embodiment 53
Operation and embodiment 50 till before the evaporation carry out equally.By electrical resistance heating, evaporation 4,4 '-two (N-(tolyl)-N-phenyl amino) biphenyl 150nm is as hole transporting material, and the thick Alq3 of evaporation 50nm is as luminescent material.Then, as electron transport materials, the Phen-1 of the embodiment 6 that lamination 100nm is thick.Thickness is the value that quartzy oscillatory type thickness monitor shows.Use peristome (the residue width 50 μ m that on the Kovar alloy plate, are provided with 16 250 μ m then by wet etch method, be equivalent to 300 μ m pitches) mask, carry out the mask exchange in a vacuum and make it and ITO striped quadrature, fix so that mask and ito substrate adherence from the inside with magnetite.Then, behind the elements doped lithium 0.5nm, AM aluminum metallization 200nm makes 32 * 16 dot matrix elements in organic layer.When this element is used matrix driving, the display text that can not get lines crossed.
Embodiment 54
Except the Phen-2 that uses embodiment 7 as the electron supplying layer, made 32 * 16 dot matrix elements equally with embodiment 53.When this element is used matrix driving, the display text that can not get lines crossed.
Utilize possibility on the industry
The present invention can provide excellent heat stability, utilization of power efficient height, the light-emitting component of colorimetric purity excellence and use therein light-emitting element material.
Table 1
Constitute Respective rights requires or embodiment
Embodiment 1 Synthetic (1) of spiro ring system basic framework 9
Embodiment 2 Synthetic (2) of spiro ring system basic framework 9
Embodiment 3 Import reactive substituents to the spiro ring system basic framework 9
Embodiment 4 Synthetic (BQ-1) of benzoquinoline derivative (3)
Embodiment 5 Synthetic (BQ-2,3) of benzoquinoline derivative (3)
Embodiment 6 Synthetic (Phen-1) of phenanthroline derivative 9
Embodiment 7 Synthetic (Phen-2) of phenanthroline derivative 10
Embodiment 8 Synthetic (Phen-3) of phenanthroline derivative (5)
Embodiment 9 Synthetic (Phen-4) of phenanthroline derivative (5)
Embodiment 10 Synthetic (Phen-5) of phenanthroline derivative (5)
Embodiment 11 1, synthetic (Phen-6) of 7-phenanthroline derivative (5)
Embodiment 12 Synthetic (TPM-dNTR) of 7-naphthyridine derivatives 10
Embodiment 13 Alq3+ coumarin-1 (green)/ETM1 (phenanthroline condensate) 4-8
Comparative example 1 Alq3+ coumarin-1 (green)/Alq3 Embodiment 13
Comparative example 2 Alq3+ coumarin-1 (green)/BCP Embodiment 13
Embodiment 14 Carbazole+phosphorescent dopants (green)/ETM1 (phenanthroline condensate) 4，5，7，8
Embodiment 15 EM1 (indigo plant)/ETM1 (phenanthroline condensate) 4，5，7
Embodiment 16 DPP-1+EM2 (red)/ETM1 (phenanthroline condensate) 4，5，7，8
Comparative example 3 DPP-1+EM2 (red)/Alq Embodiment 16-22
Embodiment 17 DPP-1+EM2 (red)/Phen-3 (phenanthroline condensate) 4，5，7，8
Embodiment 18 DPP-2+EM2 (red)/ETM1 (phenanthroline condensate) 4，5，7，8
Embodiment 19 DPP-3+EM2 (red)/ETM1 (phenanthroline condensate) 4，5，7，8
Embodiment 20 DPP-4+EM2 (red)/ETM1 (phenanthroline condensate) 4，5，7，8
Embodiment 21 DPP-5+EM3 (red)/ETM1 (phenanthroline condensate) 4，5，7，8
Embodiment 22 DPP-6+EM3 (red)/ETM1 (phenanthroline condensate) 4，5，7，8
Embodiment 23 BQ-1 (benzoquinoline condensate)+PM-1 (green)/BQ-1 1(b)，2，3
Embodiment 24 Alq3 (green)/ETM2 (benzoquinoline condensate) 1(b)，2-4，6，7
Comparative example 4 Alq3 (green)/Alq Embodiment 24,25
Comparative example 5 Alq3 (green)/BCP Embodiment 24,25
Embodiment 25 Alq3 (green)/BQ-1 (benzoquinoline condensate) 1(b)，2-4，6，7
Embodiment 26 EM4 (indigo plant)/ETM2 (benzoquinoline condensate) 1(b)，2-4，7
Comparative example 6 EM4 (indigo plant) Embodiment 26
Embodiment 27 Al (dPhq) 3+PM-2 (red)/ETM2 (benzoquinoline condensate) 1(b)，2-4，7，8
Notes 1) formation of embodiment 13-27 is the formation of element, only extracts luminescent layer/electron transport layer segment out
Annotate 2) Mw; Molecular weight, Tg: glass transition temperature, Ip: ionization potential, Ip are poor: the ionization potential of electron supplying layer and luminescent layer is poor
Table 1 (continuing)
The result
Rerum natura EL element
Electron supplying layer IP is poor Look Wavelength Brightness (voltage) Efficient Conservation rate Light-emitting area
Mw Tg[℃] Ip[eV] [eV] [nm] [cd/m 2] [cd/A] [％]
672 219 6.07 0.29 Green 523 38000(10V) 80 Homogeneous
459 180 5.79 0.01 Green 523 6000(10V)
360 ＜77 6.2 0.42 Green 523 12000(10V) ＜50 Mottled
672 219 6.07 Green 515 1000(6V)
672 219 6.07 Blue 463 8000(15V)
672 219 6.07 Red 618 10000
459 180 5.79 Orange 618， 535
663 150 6.14 Red 618 7000
672 219 6.07 Red 618 8500
672 219 6.07 Red 618 6500
672 219 6.07 Red 618 7000
672 219 6.07 Red 619 8900
672 219 6.07 Red 619 6600
Green 519 8000(11V)
609 112 5.97 0.18 Green 536 4000 2.0 80 Homogeneous
459 180 5.79 0 Green 536 3800 1.9
360 ＜77 6.2 0.41 Green 536 3000 1.4 ＜50 Mottled
670 165 6.09 0.30 Green 536 3500 1.8 80 Homogeneous
609 112 5.97 Blue 465 1200(15V) 1.0
Blue 465 110(15V) 0.1
609 112 5.97 Red 615
Table 2
Constitute Respective rights requires or embodiment
Comparative example 7 Al (dPhq) 3+PM-2 (red)/Alq Embodiment 27
Embodiment 28 Alq3+ coumarin-1 (green)/BQ-2 (benzoquinoline condensate) 1(b)，2，3
Embodiment 29 DPP-1+EM2 (red)/BQ-3 (benzoquinoline condensate) 1(b)，2，3
Embodiment 30 Alq3+ cumarin-2 (green)/ETM2 (benzoquinoline condensate) 1(b)，2-4，6-8
Comparative example 8 Alq3+ cumarin-2 (green)/Alq Embodiment 30
Comparative example 9 Alq3+ cumarin-2 (green)/BCP Embodiment 30
Embodiment 31 EM4+EM5 (indigo plant)/ETM2 (benzoquinoline condensate) 1(b)，2-4，6-8
Embodiment 32 DPP-7+EM6 (red)/ETM2 (benzoquinoline condensate) 1(b)，2-4，6-8
Embodiment 33 DPP-7+EM6 (red)/BQ-1 (benzoquinoline condensate) 1(b)，2-4，6-8
Comparative example 10 DPP-7+EM6 (red)/Alq Embodiment 32,33
Embodiment 34 Alq (green)/Phen-6 (1,7-phenanthroline condensate) 1(a)
Embodiment 35 Alq (green)/Phen-1 (spiro ring system phenanthroline condensate) 1(c)，4-7
Embodiment 36 Alq3+DCJTB (red)/Phen-1 (spiro ring system phenanthroline condensate) 1(c)，4，5，7，8
Embodiment 37 DPVBi (indigo plant)/Phen-1 (spiro ring system phenanthroline condensate) 1(c)，4，5，7
Embodiment 38 DPP-1+PM-2 (red)/Phen-1 (spiro ring system phenanthroline condensate) 1(c)，4，5，7，8
Comparative example 11 DPP-1+PM-2 (red)/Alq Embodiment 38
Embodiment 39 DPP-8+PM-3 (red)/Phen-1 (spiro ring system phenanthroline condensate) 1(c)，4，5，7，8
Embodiment 40 DPP-7+PM-4 (red)/Phen-1 (spiro ring system phenanthroline condensate) 1(c)，4，5，7，8
Embodiment 41 DPP-2+PM-5 (red)/Phen-1 (spiro ring system phenanthroline condensate) 1(c)，4，5，7，8
Embodiment 42 DPP-3+EM2 (red)/Phen-1 (spiro ring system phenanthroline condensate) 1(c)，4，5，7，8
Embodiment 43 DPP-5+EM3 (red)/Phen-1 (spiro ring system phenanthroline condensate) 1(c)，4，5，7，8
Embodiment 44 DPP-9+PM-6 (red)/Phen-1 (spiro ring system phenanthroline condensate) 1(c)，4，5，7，8
Embodiment 45 Alq (green)/Phen-2 (tetraphenylmethane is the phenanthroline condensate) 1(d)，4-7
Embodiment 46 Alq (green)+DCJTB (reddish orange)/Phen-2 (tetraphenylmethane is the phenanthroline condensate) 1(d)，4，5，7，8
Embodiment 47 DPVBi (indigo plant)/Phen-2 (tetraphenylmethane is the phenanthroline condensate) 1(d)，4，5，7
Embodiment 48 DPP-1+PM-2 (red)/Phen-2 (tetraphenylmethane is the phenanthroline condensate) 1(d)，4，5，7，8
Embodiment 49 DPP-9+PM-6 (red)/TPM-dNTR (tetraphenylmethane derivative) 1(d)，4，5，7，8
Embodiment 50 Dot matrix (using ETM1 (phenanthroline condensate)) 11
Embodiment 51 Dot matrix (using Phen-6 (1,7-phenanthroline condensate)) 11
Embodiment 52 Dot matrix (using ETM2 (benzoquinoline condensate)) 11
Embodiment 53 Dot matrix (using Phen-1 (volution phenanthroline condensate)) 11
Embodiment 54 Dot matrix (using Phen-2 (tetraphenylmethane is the phenanthroline condensate)) 11
Notes 1) formation of embodiment 28-49 is the formation of element, only extracts luminescent layer/electron transport layer segment out
Notes 2) embodiment 50-54 is the embodiment of dot matrix, only extracts the The compounds of this invention that uses out
Annotate 3) Mw; Molecular weight, Tg: glass transition temperature, Ip: ionization potential, Ip are poor: the ionization potential of electron supplying layer and luminescent layer is poor
Table 2 (continuing)
The result
Rerum natura EL element
Electron supplying layer IP is poor Look Wavelength Brightness (voltage) Efficient Conservation rate Light-emitting area
Mw Tg[℃] Ip[eV] [eV] [nm] [cd/m 2] [cd/A] [％]
459 180 5.79 Orange 615， 535
Green 523 20000(10V)
Red 618 7500(14V)
609 112 5.97 0.19 Green 513 5000(10V) 70 Homogeneous
459 180 5.79 0.01 Green 513 3000(10V)
360 ＜77 6.20 0.42 Green 513 8000(10V) ＜50 Mottled
609 112 5.97 0.32 Blue 477 3500(15V)
609 112 5.97 0.18 Red 629 8008(14V)
670 165 6.09 0.30 Red 629 9000(14V)
459 180 5.79 0 Orange 629， 535
Green 536 4000(10V) 75 Homogeneous
689 197 6.09 0.30 Green 530 20000 ＞80
689 197 6.09 Red 630 10000 ＞80
689 197 6.09 Blue 460 10000
689 197 6.09 Red 610 10000
459 180 5.79 Red+green
689 197 6.09 Red 625 10000
689 197 6.09 Red 635 10000
689 197 6.09 Red 629 10000
689 197 6.09 Red 615 10000
689 197 6.09 Red 620 10000
689 197 6.09 Red 615 10000
677 175 6.11 0.32 Green 530 20000
677 175 6.11 Red 630 10000
677 175 6.11 Blue 460 10000
677 175 6.11 Red 610 10000
677 175 6.11 Red 615 10000

Claims (2)

1, a kind of light-emitting component is characterized in that, this element is to have the structure of lamination anode, luminescent layer, electron supplying layer, negative electrode formation at least successively, and by the luminous element of electric energy, this element has the spiro compound shown in the following general formula (1),
Figure A2006101431030002C1
A 1, A 2Be selected from singly-bound, replacement or unsubstituted alkyl chain, ether chain, thioether chain, ketone chain, replacement or unsubstituted amino chain respectively, condition is A 1≠ A 2, Z represents carbon or silicon, R 1～R 16Be selected from hydrogen, alkyl, cycloalkyl, aralkyl, alkenyl, cycloalkenyl group, alkynyl, hydroxyl, sulfydryl, alkoxyl, alkylthio group, aryl ether group, fragrant thioether group, aryl, heterocyclic radical, halogen, halogenated alkane, halogenated olefine, halo alkynes, cyano group, aldehyde radical, carbonyl, carboxyl, ester group, carbamoyl, amino, nitro, silicyl, siloxy group, and adjacent substituting group between form ring structure.
2, the spiro compound shown in the general formula (1),
Figure A2006101431030002C2
A 1, A 2Be selected from singly-bound, replacement or unsubstituted alkyl chain, ether chain, thioether chain, ketone chain, replacement or unsubstituted amino chain respectively, condition is A 1≠ A 2, Z represents carbon or silicon, R 1～R 16Be selected from hydrogen, alkyl, cycloalkyl, aralkyl, alkenyl, cycloalkenyl group, alkynyl, hydroxyl, sulfydryl, alkoxyl, alkylthio group, aryl ether group, fragrant thioether group, aryl, heterocyclic radical, halogen, halogenated alkane, halogenated olefine, halo alkynes, cyano group, aldehyde radical, carbonyl, carboxyl, ester group, carbamoyl, amino, nitro, silicyl, siloxy group, and adjacent substituting group between form ring structure.
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Cited By (3)

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CN104072405A (en) * 2013-03-29 2014-10-01 海洋王照明科技股份有限公司 Electron transport material as well as preparation method and organic electroluminescence device thereof
CN106928157A (en) * 2007-05-17 2017-07-07 株式会社半导体能源研究所 Triazole derivative
CN114249713A (en) * 2020-09-22 2022-03-29 江苏三月科技股份有限公司 Organic compound containing xanthone or thioxanthone structure and application thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106928157A (en) * 2007-05-17 2017-07-07 株式会社半导体能源研究所 Triazole derivative
US10790451B2 (en) 2007-05-17 2020-09-29 Semiconductor Energy Laboratory Co., Ltd. Triazole derivative, and light-emitting element, light-emitting device, and electronic device with the use of triazole derivative
CN104072405A (en) * 2013-03-29 2014-10-01 海洋王照明科技股份有限公司 Electron transport material as well as preparation method and organic electroluminescence device thereof
CN114249713A (en) * 2020-09-22 2022-03-29 江苏三月科技股份有限公司 Organic compound containing xanthone or thioxanthone structure and application thereof
CN114249713B (en) * 2020-09-22 2024-05-03 江苏三月科技股份有限公司 Organic compound containing xanthone or thioxanthone structure and application thereof

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