WO2010076991A2 - 신규한 유기 광전 소자용 화합물 및 이를 포함하는 유기 광전 소자 - Google Patents
신규한 유기 광전 소자용 화합물 및 이를 포함하는 유기 광전 소자 Download PDFInfo
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- WO2010076991A2 WO2010076991A2 PCT/KR2009/007521 KR2009007521W WO2010076991A2 WO 2010076991 A2 WO2010076991 A2 WO 2010076991A2 KR 2009007521 W KR2009007521 W KR 2009007521W WO 2010076991 A2 WO2010076991 A2 WO 2010076991A2
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- Prior art keywords
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- substituted
- unsubstituted
- photoelectric device
- organic photoelectric
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/10—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a carbon chain containing aromatic rings
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
- H10K85/622—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene containing four rings, e.g. pyrene
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- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
- C07D413/10—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings
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- C—CHEMISTRY; METALLURGY
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- C07D—HETEROCYCLIC COMPOUNDS
- C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
- C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
- C07D417/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond
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- C—CHEMISTRY; METALLURGY
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- C07D—HETEROCYCLIC COMPOUNDS
- C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
- C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
- C07D417/10—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings linked by a carbon chain containing aromatic rings
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
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- C—CHEMISTRY; METALLURGY
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/10—Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
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Definitions
- the present invention relates to a novel compound for an organic photoelectric device and an organic photoelectric device including the same. More particularly, the organic photoelectric device includes a material having excellent thermal stability, thereby lowering the driving voltage of the organic photoelectric device and improving lifetime and efficiency. The present invention relates to a material for an organic photoelectric device and an organic photoelectric device including the same.
- An organic photoelectric device converts electrical energy into light energy by applying current to an organic material, and has a structure in which a functional organic material layer is inserted between an anode and a cathode.
- organic photoelectric devices are similar to those of light emitting diodes (LEDs), and holes and electrons are injected from the anode and electrons are injected from the cathode, and then each of the holes and the electrons It moves toward and forms high energy excitons by recombination. In this case, light having a specific wavelength is generated as the excitons move to the ground state.
- LEDs light emitting diodes
- These low molecular weight organic light emitting diodes are manufactured in the form of thin films by vacuum evaporation, so the efficiency and lifespan are good, and the high molecular weight organic light emitting diodes have low initial investment cost using inkjet or spin coating.
- the area has an advantage.
- Both low molecular weight organic light emitting diodes and high molecular weight organic light emitting diodes have advantages such as self-luminous, high-speed response, wide viewing angle, ultra-thin, high-definition, durability, and wide driving temperature range. Compared with), it has good cyanity and does not need backlight, so it can reduce thickness and weight by 1/3 level of LCD. In addition, since the response speed is 1000 times faster than the LCD unit in microseconds, a perfect video can be realized without afterimages. Based on these advantages, since the first development in the late 1980s, rapid technological advancement has been achieved, with efficiency of 80 times and lifespan of 100 times. In recent years, the size of the 40-inch organic light emitting diode panel has been announced.
- the luminous efficiency In order to increase the size, the luminous efficiency must be increased and the life of the device must be accompanied. At this time, the luminous efficiency of the device should be smoothly coupled to the holes and electrons in the light emitting layer.
- the electron mobility of the organic material is slower than the hole mobility, and thus, there is a disadvantage in that the hole and the electron coupling in the light emitting layer are not efficiently made. Therefore, there is an urgent need to develop a new compound capable of increasing the electron injection and mobility from the cathode and blocking the movement of holes.
- One embodiment of the present invention provides a novel organic photoelectric device material that can play a role of hole injection, hole transport, light emission, or electron injection and / or electron transport, and can also act as a light emitting host with a suitable dopant To provide.
- Another embodiment of the present invention is to provide an organic photoelectric device including the organic photoelectric device material to lower the driving voltage of the organic photoelectric device, and improved lifespan and efficiency.
- a compound for an organic photoelectric device represented by Formula 1 is provided:
- a above One To A 5 are the same or different, each CR One To CR 5 Or N, provided that One To A 5 3 or less selected from among N,
- the remaining 4 selected from A 1 to A 5 are each selected from the group consisting of CR 1 to CR 5 , and at this time, among R 1 to R 5 At least two selected are not hydrogen,
- B is selected from the group consisting of O, S, Se, and NR ′′.
- C and D are the same as or different from each other, and are each independently selected from the group consisting of CR ′ and N, provided that B is N when B is not NR ′′.
- R 1 to R 5 , R ′, and R ′′ are each independently hydrogen, a halogen group, a nitrile group, a cyano group, a nitro group, an amide group, a carbonyl group, an ester group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted group.
- Alkoxy group substituted or unsubstituted alkenyl group, substituted or unsubstituted cycloalkyl group, substituted or unsubstituted aryl group, substituted or unsubstituted arylamine group, substituted or unsubstituted heteroarylamine group, substituted or unsubstituted A substituted heterocyclic group, a substituted or unsubstituted amino group, BR 6 R 7 , and SiR 6 R 7 R 8 ,
- the R 6 To R 8 are the same as or different from each other, each independently selected from the group consisting of a substituted or unsubstituted alkyl group, and a substituted or unsubstituted aryl group.
- E is hydrogen, nitrile group, cyano group, nitro group, amide group, carbonyl group, substituted or unsubstituted alkyl group, substituted or unsubstituted fluoroalkyl group, substituted or unsubstituted cycloalkyl group, substituted or unsubstituted aryl group , A substituted or unsubstituted heterocyclic group, and SO 2 R 9 It is selected from the group consisting of,
- R 9 is a nitrile group, cyano group, nitro group, amide group, carbonyl group, substituted or unsubstituted alkyl group, substituted or unsubstituted cycloalkyl group, substituted or unsubstituted aryl group, and substituted or unsubstituted Heterocyclic group is selected from the group consisting of.
- L is selected from the group consisting of a substituted or unsubstituted aryl group, and a substituted or unsubstituted heteroaryl group,
- n 0 or 1
- an organic photoelectric device including an anode, a cathode, and at least one organic thin film layer interposed between the anode and the cathode, wherein at least one of the organic thin film layers is the organic photoelectric device. It provides an organic photoelectric device comprising a compound for the device.
- a display device including the organic photoelectric device is provided.
- Compound for an organic photoelectric device forms an asymmetric structure as a whole.
- Such an asymmetric structure can suppress the crystallization by strengthening the amorphous properties, thereby improving the thermal stability of the compound for an organic photoelectric device. Therefore, the driving voltage of the organic photoelectric device may be lowered and the life and efficiency may be improved when the organic photoelectric device is driven.
- Material for an organic photoelectric device may play a role of hole injection, hole transport, light emission, or electron injection and / or electron transport in an organic photoelectric device including an organic light emitting device, and with an appropriate dopant. Applicable as a light emitting host.
- 1 to 5 are cross-sectional views illustrating various embodiments of an organic photoelectric device that may be manufactured including a compound for an organic photoelectric device according to an embodiment of the present invention.
- Example 7 shows a 1 H NMR spectrum of a compound prepared according to Example 2 of the present invention.
- FIG. 13 shows a 1 H NMR spectrum of a compound prepared according to Example 8 of the present invention.
- Example 15 is a graph measuring voltage-luminance characteristics of organic light emitting diodes manufactured according to Examples 10 to 13 and Comparative Example 2 of the present invention.
- 16 is a graph measuring voltage-luminance characteristics of organic light emitting diodes manufactured according to Examples 14 to 16 and Comparative Example 2 of the present invention.
- 17 is a graph measuring power efficiency of organic light emitting diodes manufactured according to Examples 10 to 13 and Comparative Example 2 of the present invention.
- Example 19 is a graph showing the thermal properties of the compound prepared according to Example 5 of the present invention.
- organic photoelectric device 110 cathode
- hole injection layer 230 light emitting layer + electron transport layer
- an "alkyl group” is an alkyl group having 1 to 30 carbon atoms, more preferably an alkyl group having 1 to 15 carbon atoms;
- Alkoxy group is an alkoxy group having 1 to 30 carbon atoms, more preferably an alkoxy group having 1 to 15 carbon atoms;
- Alkenyl group is an alkenyl group having 2 to 30 carbon atoms, more preferably an alkenyl group having 2 to 15 carbon atoms;
- Cycloalkyl group is a cycloalkyl group having 3 to 30 carbon atoms, more preferably a cycloalkyl group having 3 to 15 carbon atoms;
- Aryl group means an aryl group having 6 to 50 carbon atoms, more preferably an aryl group having 6 to 25 carbon atoms;
- Arylamine group is an arylamine group having 7 to 50 carbon atoms, more preferably an arylamine group having 7 to 25 carbon atoms
- esters means represented by COOR;
- Carbonyl means represented by -COR '.
- R and R ' are each independently hydrogen, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, and an alkynyl group having 2 to 10 carbon atoms. Or a combination thereof.
- hetero includes 1 to 3 heteroatoms selected from the group consisting of N, O, S, and P in one ring group, unless otherwise defined, and the remainder is preferably carbon. .
- a heterocyclic group includes a heteroaryl group having 5 to 50 carbon atoms, a heterocycloalkyl group having 5 to 50 carbon atoms, and a heterocycloalke having 5 to 50 carbon atoms, including the hetero atom.
- Nyl group, heterocycloalkynyl group having 5 to 50 carbon atoms means that it is selected from the group consisting of the fused ring.
- the heterocyclic group preferably contains 1 to 20 hetero atoms, and even more preferably 1 to 15 hetero atoms.
- a compound for an organic photoelectric device represented by Formula 1 is provided:
- a above One To A 5 are the same or different, each CR One To CR 5 Or N, provided that One To A 5 3 or less selected from among N,
- any one selected from A 1 to A 5 is N, the remaining four selected from A 1 to A 5 are each selected from the group consisting of CR 1 to CR 5 , and at this time, among R 1 to R 5 At least two selected are not hydrogen,
- B is selected from the group consisting of O, S, Se, and NR '.
- C and D are the same as or different from each other, and are each independently selected from the group consisting of CR ′ and N, provided that B is N when B is not NR ′.
- R 1 to R 5 , R ′, and R ′ are each independently hydrogen, a halogen group, a nitrile group, a cyano group, a nitro group, an amide group, a carbonyl group, an ester group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted group.
- Alkoxy group substituted or unsubstituted alkenyl group, substituted or unsubstituted cycloalkyl group, substituted or unsubstituted aryl group, substituted or unsubstituted arylamine group, substituted or unsubstituted heteroarylamine group, substituted or unsubstituted A substituted heterocyclic group, a substituted or unsubstituted amino group, BR 6 R 7 , and SiR 6 R 7 R 8 ,
- the R 6 To R 8 are the same as or different from each other, each independently selected from the group consisting of a substituted or unsubstituted alkyl group, and a substituted or unsubstituted aryl group.
- E is hydrogen, nitrile group, cyano group, nitro group, amide group, carbonyl group, substituted or unsubstituted alkyl group, substituted or unsubstituted fluoroalkyl group, substituted or unsubstituted cycloalkyl group, substituted or unsubstituted aryl group , A substituted or unsubstituted heterocyclic group, and SO 2 R 9 It is selected from the group consisting of,
- the R 9 Is a nitrile group, cyano group, nitro group, amide group, carbonyl group, substituted or unsubstituted alkyl group, substituted or unsubstituted cycloalkyl group, substituted or unsubstituted aryl group, and substituted or unsubstituted heterocyclic group It is chosen.
- L is selected from the group consisting of a substituted or unsubstituted aryl group, and a substituted or unsubstituted heteroaryl group,
- n 0 or 1
- the novel compound for an organic photoelectric device of Formula 1 includes a portion containing A 1 to A 5 ; L which is a linking group containing an aryl group or a heteroaryl group; And it can think by dividing into the functional substituent part containing a pentagonal ring.
- a in Formula 1 One To A 5 are the same or different, each CR One To CR 5 Or N, provided that One To A 5 N or less selected from among is N. If A One To A 5 When at least one of the N is N, lower unoccupied molecular orbital (LUMO) energy level can be lowered to increase the electron affinity of the molecule to improve the electron injection and transport characteristics. Therefore, since the voltage required for driving the organic light emitting element can be reduced, the effect of increasing the power efficiency can be given. However, A One To A 5 If four or more selected from among N is not preferable because it may cause too low LUMO energy level, the injection of electrons may be difficult.
- LUMO unoccupied molecular orbital
- any one selected from A 1 to A 5 is N
- the remaining four selected from A 1 to A 5 are each selected from the group consisting of CR 1 to CR 5 , wherein R 1 to R At least two selected from five are not hydrogen. If only one selected from R 1 to R 5 is a substituent other than hydrogen, the rigidity of the compound is high, so crystallization is likely to occur, and when R 1 to R 5 are all hydrogen, The thermal stability is poor and the injection of electrons becomes difficult, which is undesirable.
- a 1 to A 5 are selected from the group consisting of CR 1 to CR 5 , wherein at least two of R 1 to R 5 are not hydrogen. . If only one selected from R 1 to R 5 is a substituent other than hydrogen, it is not preferable because the rigidity of the compound is high and crystallization is likely to occur, and when both R 1 to R 5 are hydrogen. It is not preferable because of poor thermal stability and difficult injection of electrons.
- a 1 and A 5 of the compound for an organic photoelectric device according to the embodiment of the present invention are not identical to each other, and A 2 and A 4 are not identical to each other.
- upper and lower substituents have an asymmetrical structure based on an symmetry axis including A 3 .
- Such an asymmetric structure can suppress the crystallization by enhancing the amorphous characteristics, it is possible to improve the life characteristics when driving the organic photoelectric device.
- the linking group including the aryl group or heteroaryl group may improve the thermal stability by increasing the interaction between molecules, and may control light emission in the visible region by controlling the ⁇ -conjugation length. . Therefore, the compound for an organic photoelectric device of the present invention can be usefully applied to the light emitting layer.
- B of the functional substituent moiety including a 5 (5) cyclic ring is selected from the group consisting of O, S, Se, and NR ', and C and D are the same as or different from each other, and each independently CR ′ and N It is selected from the group consisting of. However, when B is not NR ', C is N.
- the functional substituent portion including the pentagonal ring makes the structure of the compound for an organic photoelectric device according to the exemplary embodiment of the present invention an overall asymmetric structure, thereby imparting thermal stability to the compound.
- R 1 to R 5 , R ′, and R ′ each independently represent an aryl group
- the aryl group is more preferably a substituted or unsubstituted aryl group having 6 to 40 carbon atoms.
- the aryl group is a monocyclic aryl group such as phenyl group, biphenyl group, terphenyl group, styrene; Or polycyclic aryl groups, such as a naphthyl group, anthracenyl group, a phenanthrene group, a pyrenyl group, and a perrylenyl group, are more preferable because they can be used as a light emitting layer usefully.
- R 1 to R 5 , R ′, and R ′ in the general formula (1) are each independently an arylamine group
- the arylamine group may be a diphenyl amine group, a dinaphthyl amine group, a dibiphenyl amine group, or a phenyl naphthyl amine group.
- a phenyl diphenyl amine group, a totolyl amine group, a phenyl tolyl amine group, a carbazole group, and a triphenyl amine group can be used more preferably.
- the heterocyclic group may be a thiophene group, a furan group, a pyrrole group, an imidazolyl group, a thia Zolyl group, oxazolyl group, oxadiazolyl group, triazolyl group, pyridinyl group, pyridazine group, quinolinyl group, isoquinolinine group, acriridyl group, imidazopyridinyl group, and imidazopyrimidinyl group What is chosen from the group which consists of can be used more preferably.
- the substituent bonded to the nitrogen (N) element of the imidazole group or the triazole group may be a substituted or unsubstituted methyl group, ethyl group, propyl group, isopropyl Alkyl groups such as groups, butyl groups, tertiary-butyl groups, pentyl groups, hexyl groups, heptyl groups and the like; Cycloalkyl groups such as substituted or unsubstituted cyclopentyl groups, cyclohexyl groups, and the like; Aryl groups such as substituted or unsubstituted phenyl group, biphenyl group, naphthyl group and the like; And it may be used more preferably selected from the group consisting of a substituted or unsubstituted heterocyclic group.
- the heterocyclic group is preferably a
- R 1 to R 5 , R ′, and R ′ may be functional groups having excellent electron injection characteristics, or may be formed of functional groups capable of increasing thermal stability.
- the hole injection / transfer ability and the electron injection / transmission capability can be selectively provided, thereby enabling efficient hole-electron coupling in the light emitting layer.
- R One To R 5 , R ′, and R ′ When any one selected from the group is substituted with a substituent selected from the group consisting of amine substituted alkyl group, amine substituted cycloalkyl group, amine substituted aryl group, and amine substituted heterocyclic group, the compound is a hole injection layer and a hole transport layer It can be usefully used as a substance.
- R One To R 5 , R ′, and R ′ When any one selected from the group is substituted with a substituent selected from the group consisting of a nitrile group, nitro group, amide group, carbonyl group, and heterocyclic group excellent in electron affinity can be usefully used as an electron injection layer or electron transport layer material. .
- R in Chemical Formula 1 One To R 5 , R ′, and R ′′ Any one selected from among those substituted with a substituent selected from the group consisting of an amine substituted alkyl group, an amine substituted cycloalkyl group, an amine substituted aryl group, and an amine substituted heterocyclic group, One To R 5 , R ', and any other one selected from R' of B, hole transfer and electron transfer when using one substituted with a substituent selected from the group consisting of nitrile group, nitro group, amide group, carbonyl group, and heterocyclic group It is more preferable because it has the ability at the same time.
- the amine substituted heterocyclic group is more preferably an amine substituted heteroaryl group, more preferably, the heterocyclic group is a heteroaryl group.
- any one selected from E ′′ and R ′′ in B ′′ is a substituent selected from the group consisting of an amine substituted alkyl group, an amine substituted cycloalkyl group, an amine substituted aryl group, and an amine substituted heterocyclic group.
- R 'of E, and B in Formula 1 Any other one selected from among those which is substituted with a substituent selected from the group consisting of a nitrile group, a nitro group, an amide group, a carbonyl group, and a heterocyclic group, reinforces the amorphous properties and details of the hole and electron transfer properties. It is more preferable because adjustment is possible.
- the amine substituted heterocyclic group is more preferably an amine substituted heteroaryl group, more preferably, the heterocyclic group is a heteroaryl group.
- L is more preferably selected from the group consisting of a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, and a substituted or unsubstituted heteroaryl group having 5 to 30 carbon atoms.
- Representative examples of the compound for an organic photoelectric device according to the exemplary embodiment of the present invention represented by Chemical Formula 1 may include a compound represented by the following Chemical Formulas 2 to 111, and the compound of the present invention is not limited thereto.
- an embodiment of the present invention can provide a compound for an organic photoelectric device represented by the following formula 112 having a structure in which the aryl group and heterocyclic group is repeated in sequence.
- a 1 to A 12 in Formula 112 are the same as or different from each other, each independently selected from the group consisting of CR 1 to CR 12 and N, provided that at least any one selected from A 7 to A 12 is necessarily N, wherein two adjacent ones of R 1 to R 6 may form a fusion ring, and two adjacent ones of R 7 to R 12 may form a fusion ring.
- X is selected from the group consisting of O, S, Se, and NR 13
- Y is CR 14 or N, provided that when X is selected from the group consisting of O, S, and Se, Y is N ego,
- L is a substituted or unsubstituted arylene group having 6 to 50 carbon atoms
- a is 0 or 1, provided that if a is 0, then A One To A 6 Are each independently CR One To CR 6 When A is 1, then A One To A 6 At least one selected from the group is necessarily N,
- b and c are the same as or different from each other, and each independently an integer of 1 to 3,
- R One To R 14 are the same as or different from each other, and each independently hydrogen, halogen, nitrile, cyano, nitro, amide, carbonyl, ester, substituted or unsubstituted alkyl group, substituted or unsubstituted alkylene group, substituted or unsubstituted Substituted alkoxy groups, substituted or unsubstituted alkenyl groups, substituted or unsubstituted alkenylene groups, substituted or unsubstituted alkynyl groups, substituted or unsubstituted alkynylene groups, substituted or unsubstituted cycloalkyl groups, substituted or unsubstituted A substituted cycloalkylene group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylene group, a substituted or unsubstituted arylamine group, a substituted or unsubstituted heteroary
- a fusion ring comprising A 1 to A 6 , and A 7 to A
- the fusion ring comprising 12 may be polycyclic aryl such as naphthyl, anthracenyl, phenanthrenyl, pyrenyl, perrylenyl, pyrenyl, fluorenyl and the like.
- the case where at least one selected from A 7 to A 12 is necessarily N means, for example, that one or more carbons of the polycyclic aryl is substituted with N.
- R 7 To R 12 are each independently substituted or unsubstituted aryl group or substituted or unsubstituted arylene group can be very usefully applied as a light emitting layer.
- Y is N, that is, at least one selected from X and Y is necessarily N.
- the lower unoccupied molecular orbital (LUMO) energy level may be lowered and the electron affinity of the molecule may be increased, thereby improving the electron injection and transport characteristics. Therefore, since the voltage required for driving the organic light emitting element can be reduced, the effect of increasing the power efficiency can be given.
- LUMO lower unoccupied molecular orbital
- the compound for an organic photoelectric device according to the exemplary embodiment of the present invention may have a high glass transition temperature, thereby improving thermal stability, thereby improving lifespan characteristics of the organic light emitting device.
- L is a substituted or unsubstituted arylene group having 6 to 50 carbon atoms. More specifically, the aryl of R 7 To R 12 And L is a aryl having 6 to 50 carbon atoms, monocyclic aryl such as phenyl; Alternatively, polycyclic aryl such as naphthyl, anthracenyl, phenanthrenyl, pyrenyl, peryllenyl, pyrenyl, etc. may be used as the light emitting layer of the organic photoelectric device.
- L the linking group
- the compound may also improve the thermal stability by increasing the interaction between molecules, and may control light emission in the visible region by controlling the conjugate length ((-conjugation length)).
- the compound may be usefully applied to the light emitting layer.
- b and c are integers between 1 and 3, and when b and c are 2 or more, each repeating unit may be different.
- the two repeating units are preferably bonded to the meta position in the benzene ring containing A 1 to A 6 .
- the compound for an organic photoelectric device according to the exemplary embodiment of the present invention may be represented by the following 113:
- a 2 , A 4 to A 12 , and A 7 ′ to A 12 ′ are the same as or different from each other, and are each independently selected from the group consisting of CR 2 , CR 4 to CR 12 , CR 7 ′ to CR 12 ′, and N
- at least any one selected from A 7 to A 12 necessarily includes N
- at least one selected from A 7 ′ to A 12 ′ necessarily includes N
- R 4 to Two adjacent to each other in R 6 may form a fusion ring
- two adjacent to each other of the R 7 to R 12 may form a fusion ring
- two of the adjacent R 7 'to R 12 ' Can form a fusion ring
- X is selected from the group consisting of O, S, Se, and NR 13
- Y is CR 14 or N, provided that when X is selected from the group consisting of O, S, and Se, Y is N ego,
- L and L ' are the same as or different from each other, each independently represent a substituted or unsubstituted arylene group having 6 to 50 carbon atoms,
- a and a ' are the same as or different from each other, and are each independently 0 or 1, provided that a and a' are each independently 0, 2 , A 4 To A 6 Are each independently CR 2 , CR 4 To CR 6 When A and a 'are each independently 1, then A 2 , A 4 To A 6 At least one selected from the group is necessarily N,
- b and b ' are the same as or different from each other, and each independently an integer between 1 and 3,
- the R 2 , R 4 to R 14 , R 7 'to R 12 ' are the same as or different from each other, each independently hydrogen, halogen group, nitrile group, cyano group, nitro group, amide group, carbonyl group, ester group, substitution Or an unsubstituted alkyl group, a substituted or unsubstituted alkylene group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkenylene group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted A substituted alkynylene group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted cycloalkylene group, a substituted or unsubstituted aryl group, a substituted or unsubstituted ary
- the fusion ring may be polycyclic aryl such as naphthyl, anthracenyl, phenanthrenyl, pyrenyl, perrylenyl, pyrenyl, fluorenyl, and the like. Particularly, when at least one selected from A 7 to A 12 is necessarily N, and at least one selected from A 7 ′ to A 12 ′ is necessarily N, for example, of the polycyclic aryl It means that one or more carbons are substituted with N.
- L and L ' are the same as or different from each other, and each independently represent a substituted or unsubstituted arylene group having 6 to 50 carbon atoms.
- the aryl is a aryl having 6 to 50 carbon atoms, monocyclic aryl such as phenyl; Alternatively, polycyclic aryl such as naphthyl, anthracenyl, phenanthrenyl, pyrenyl, peryllenyl, pyrenyl, etc. may be used as the light emitting layer of the organic photoelectric device.
- b and b ' are the same as or different from each other, and each independently an integer between 1 and 3, wherein, when b and b' is 2 or more, each repeating unit may be different.
- R 1 to R 14 of Formula 112, and R 2 , R 4 to R 14 , R 7 ′ to R 12 ′ of Formula 113 may be substituted or unsubstituted aryl groups, substituted or unsubstituted arylene groups or substituted Or an unsubstituted arylamine group, wherein the aryl is an aryl having 6 to 50 carbon atoms.
- monocyclic aryl such as phenyl, biphenyl, terphenyl, styrene;
- polycyclic aryl such as naphthyl, anthracenyl, phenanthrenyl, pyrenyl, peryllenyl, pyrenyl, etc. may be used as the light emitting layer of the organic photoelectric device.
- R 1 to R 14 of Formula 112, and R 2 , R 4 to R 14 , R 7 ′ to R 12 ′ of Formula 113 are substituted or unsubstituted heteroarylamine groups, or substituted or unsubstituted hetero Even in the case of an aryl group, the definition of aryl is the same as described above. However, it means that it contains 1 to 3 heteroatoms of N, O, S, or P in one ring, and the rest is carbon.
- the arylamine is diphenyl amine Groups selected from the group consisting of groups, dinaphthyl amine groups, dibiphenyl amine groups, phenyl naphthyl amine groups, phenyl diphenyl amine groups, ditolyl amine groups, phenyl tolyl amine groups, carbazole groups, and triphenyl amine groups It is possible to balance the movement characteristics of electrons and holes.
- the heterocyclic group may be a thiophene group.
- the substituent bonded to the nitrogen (N) element of the imidazole group or the triazole group is a substituted or unsubstituted methyl group, ethyl group, propyl group, isopropyl group, butyl group, tertiary-butyl group, pentyl group, hexyl group Alkyl groups such as heptyl and the like; Cycloalkyl groups such as substituted or unsubstituted cyclopentyl groups, cyclohexyl groups, and the like; Aryl groups such as substituted or unsubstituted phenyl group, biphenyl group, naphthyl group and the like; And it may be used more preferably selected from the group consisting of a substituted or unsubstituted heterocyclic group.
- the heterocyclic group is preferably a heteroaryl group such as a pyridyl group, bipyridyl group, quinolyl group,
- any one selected from R 1 to R 12 of Formula 112 and any one selected from R 2 , R 4 to R 12 , R 7 ′ to R 12 ′ of Formula 113 is an amine substituted alkyl group, an amine substituted Substituted with a substituent selected from the group consisting of a cycloalkyl group, an amine substituted aryl group, and an amine substituted heterocyclic group, it can be usefully used as a hole injection layer and a hole transport layer material.
- any one selected from R 1 to R 12 of Chemical Formula 112 and any other selected from R 2 , R 4 to R 12 , R 7 'to R 12 ' of Chemical Formula 113 may include a nitrile group, a nitro group, Substituted with a substituent selected from the group consisting of an amide group, a carbonyl group, and a substituted or unsubstituted heterocyclic group, it can be usefully used as an electron injection layer or electron transport layer material by enhancing electron injection or transport ability. Therefore, the hole transfer and electron transfer ability can be improved at the same time.
- a compound represented by the following Chemical Formulas 114 to 183 may be used.
- the compounds of the present invention are not limited thereto.
- the compound for an organic photoelectric device including the compound as described above may play a role of hole injection, hole transport, light emission, or electron injection and / or transport, and may also serve as a light emitting host with an appropriate dopant.
- the compound for an organic photoelectric device according to the exemplary embodiment of the present invention may be used in an organic thin film layer to improve thermal stability for improving lifetime characteristics and efficiency characteristics of the organic photoelectric device, and to lower driving voltage.
- the compound for an organic photoelectric device including the compound as described above is excellent in the ability to transport holes and electrons, and may also serve as a light emitting host with an appropriate dopant.
- the dopant may be a reducing dopant.
- the reducing dopant may be an alkali metal, an alkaline earth metal, a rare earth metal, an oxide of an alkali metal, an halide of an alkali metal, an organic complex of an alkali metal, or an alkali earth metal.
- the oxide selected from the group consisting of an oxide of an alkali metal, a halide of an alkaline earth metal, an organic complex of an alkaline earth metal, an oxide of a rare earth metal, a halide of a rare earth metal, and an organic complex of a rare earth metal can be used.
- the organic photoelectric device means an organic light emitting device, an organic solar cell, an organic transistor, an organic memory device, or the like.
- a novel compound of the present invention is included in an electrode or an electrode buffer layer to increase quantum efficiency, and in the case of an organic transistor, it may be used as an electrode material in a gate, a source-drain electrode, and the like.
- an organic photoelectric device comprising an anode, a cathode, and at least one organic thin film layer interposed between the anode and the cathode, at least one layer of the organic thin film layer is the organic
- An organic photoelectric device comprising a compound for a photoelectric device is provided.
- the organic light emitting device by forming a compound having a variety of energy band gap, a novel that can satisfy various conditions required for a hole injection layer, a hole transport layer, a light emitting layer, an electron injection layer, an electron transport layer, etc. Compound. Therefore, a device having a low driving voltage and high luminous efficiency can be realized.
- the organic thin film layer may include a layer selected from the group consisting of a light emitting layer, an electron transport layer, an electron injection layer, a hole transport layer, a hole injection layer, and a hole blocking layer, at least one layer of the present invention It includes a compound for an organic photoelectric device according to.
- 1 to 5 are cross-sectional views of an organic light emitting device using a novel compound for an organic photoelectric device manufactured according to an embodiment of the present invention.
- an organic photoelectric device 100, 200, 300, 400, and 500 may include an anode 120, a cathode 110, and a gap between the anode and the cathode. It has a structure including at least one organic thin film layer 105 interposed therebetween.
- the anode 120 includes an anode material, and a material having a large work function is preferable as the anode material so that hole injection can be smoothly performed into an organic thin film layer.
- the anode material that can be used in the present invention include metals such as nickel, platinum, vanadium, chromium, copper, zinc, gold, and alloys thereof; Metal oxides such as zinc oxide, indium oxide, indium tin oxide (ITO), indium zinc oxide (IZO), and the like; ZnO and Al or SnO 2 Combinations of oxides with metals such as and Sb; Conductive polymers such as poly (3-methylthiophene), poly [3,4- (ethylene-1,2-dioxy) thiophene] (polyehtylenedioxythiophene (PEDT), polypyrrole, polyaniline, etc. may be used, but are not limited thereto. It is not.
- the negative electrode 110 includes a negative electrode material, and the negative electrode material is generally a material having a small work function to facilitate electron injection into the organic thin film layer.
- the negative electrode material include metals such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver, tin, lead, cesium, barium, and alloys thereof;
- a multilayer structure material such as LiF / Al, Liq / Al, LiO 2 / Al, LiF / Ca, LiF / Al, BaF 2 / Ca, or the like may be used, but is not limited thereto.
- FIG. 1 illustrates an organic photoelectric device 100 in which only a light emitting layer 130 exists as an organic thin film layer 105.
- the organic thin film layer 105 may exist only as a light emitting layer 130.
- FIG. 2 illustrates a two-layered organic photoelectric device 200 in which an emission layer 230 including an electron transport layer and a hole transport layer 140 exist as an organic thin film layer 105, and an organic thin film layer 105.
- the silver may be a two-layer type including the light emitting layer 230 and the hole transport layer 140.
- the light emitting layer 130 functions as an electron transporting layer
- the hole transporting layer 140 functions to improve bonding and hole transporting properties with a transparent electrode such as ITO.
- FIG. 3 illustrates a three-layered organic photoelectric device 300 having an electron transport layer 150, a light emitting layer 130, and a hole transport layer 140 as an organic thin film layer 105.
- the light emitting layer 130 is in an independent form, and the film (electron transport layer 150 and hole transport layer 140) excellent in electron transport property and hole transport property is stacked in a separate layer.
- FIG. 4 is a four-layered organic photoelectric device 400 having an electron injection layer 160, an emission layer 130, a hole transport layer 140, and a hole injection layer 170 as an organic thin film layer 105. ),
- the hole injection layer 170 can improve the adhesion to ITO used as an anode.
- FIG. 5 shows different organic thin film layers 105 such as an electron injection layer 160, an electron transport layer 150, a light emitting layer 130, a hole transport layer 140, and a hole injection layer 170.
- the organic photoelectric device 500 is effective for lowering the voltage by forming the electron injection layer 160 separately.
- the above-described organic light emitting device includes a dry film method such as evaporation, sputtering, plasma plating, ion plating, etc. after forming an anode on a substrate;
- the organic thin film layer may be formed by a wet film method such as spin coating, dipping, flow coating, or the like, followed by forming a cathode thereon.
- a display device including the organic photoelectric device is provided.
- the compounds synthesized in Examples 1 to 9 were analyzed by nuclear magnetic resonance spectroscopy ( 1 H NMR (nuclear magnetic resonance spectroscopy)), respectively.
- Example 10 fabrication of organic light emitting device
- N, N'-di (4- (N, N'-diphenyl-amino) -phenyl) -N, N'-diphenylbenzidine (N, N'-di (4- (N, N) '-diphenyl-amino) -phenyl) -N, N'-diphenylbenzidine: DNTPD) formed a 40 nm thick hole injection layer.
- N, N'-bis (naphthalen-1-yl) -N, N'-bis (phenyl) benzidine was vacuum deposited to form a 10 nm thick hole transport layer.
- EB-46 (E-Ray) and EB-512 (E-Ray) were vacuum deposited on the hole transport layer at a weight ratio of 94: 6 to form a light emitting layer having a thickness of 40 nm.
- Example 2 of the present invention as an electron transport material on the light emitting layer by vacuum deposition to form an electron transport layer having a thickness of 10 nm.
- the organic light emitting device of Example 10 was manufactured by sequentially depositing LiF 0.5 nm / Al 100 nm on the electron transport layer to form a cathode formed of LiF / Al.
- An organic light-emitting device was manufactured in the same manner as in Example 10, except that the compound prepared in Example 3 of the present invention was used as the electron transport layer.
- Example 12 fabrication of organic light emitting device
- An organic light-emitting device was manufactured in the same manner as in Example 10, except that the compound prepared in Example 4 of the present invention was used as the electron transport layer.
- An organic light-emitting device was manufactured in the same manner as in Example 10, except that the compound prepared in Example 5 of the present invention was used as the electron transporting layer.
- Example 14 fabrication of organic light emitting device
- An organic light-emitting device was manufactured in the same manner as in Example 10, except that the compound prepared in Example 7 of the present invention was used as the electron transporting layer.
- Example 15 fabrication of organic light emitting device
- An organic light-emitting device was manufactured in the same manner as in Example 10, except that the compound prepared in Example 8 of the present invention was used as the electron transporting layer.
- An organic light-emitting device was manufactured in the same manner as in Example 10, except that the compound prepared in Example 9 of the present invention was used as the electron transporting layer.
- An organic light-emitting device was manufactured in the same manner as in Example 10, except that Alq 3 , which is an electron transport material, was used as the electron transport layer.
- the organic light emitting diodes of Examples 10 to 16 have a significantly lower driving voltage than the organic light emitting diode of Comparative Example 2.
- the organic light emitting diodes of Examples 10 to 16 are significantly low in driving voltage, whereas the current efficiency and power efficiency are significantly higher.
- the measurement result of the organic light emitting device is a result of the balance between the holes and the electrons in the light emitting layer, and the compound used in Examples 10 to 16 is Alq, which is a general electron transport material. 3 Compared with the above, it can be seen that the electron injection characteristics and the movement characteristics are excellent.
- the organic light emitting device manufactured by the compound according to the present invention can reduce the influence of Joule heat during driving, it can be expected to show an improved life characteristics compared to the conventional organic light emitting device.
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Abstract
Description
소자 | at 1000 cd/m2 | Von | max | |||
Vd (V) | cd/A | lm/W | cd/A | lm/W | ||
비교예 2 | 7.40 | 4.68 | 1.99 | 3.60 | 4.72 | 2.88 |
실시예 10 | 6.20 | 5.19 | 2.63 | 3.20 | 5.35 | 3.25 |
실시예 11 | 7.20 | 5.29 | 2.31 | 3.80 | 5.32 | 2.77 |
실시예 12 | 6.40 | 5.00 | 2.45 | 3.00 | 5.32 | 3.34 |
실시예 13 | 7.40 | 4.99 | 2.12 | 3.20 | 5.32 | 3.37 |
실시예 14 | 6.40 | 5.80 | 2.85 | 3.00 | 5.88 | 3.51 |
실시예 15 | 7.20 | 5.56 | 2.43 | 3.40 | 5.66 | 3.54 |
실시예 16 | 6.00 | 6.04 | 3.16 | 3.20 | 6.32 | 4.14 |
Claims (17)
- 하기 화학식 1로 표시되는 유기 광전 소자용 화합물:[화학식1](상기 화학식 1에 있어서,상기 A1 내지 A5 는 서로 같거나 다른 것으로, 각각 CR1 내지 CR5 이거나 N 이고, 단, 상기 A1 내지 A5 중에서 선택되는 3 개 이하가 N 이고,A1 내지 A5 중에서 선택되는 어느 하나가 N 인 경우, A1 내지 A5 중에서 선택되는 나머지 4 개가 각각 CR1 내지 CR5 로 이루어진 군에서 선택되는 것이고, 이 때, 상기 R1 내지 R5 중에서 선택되는 적어도 2 개는 수소가 아니고,A1 내지 A5 이 각각 CR1 내지 CR5 인 경우, R1 내지 R5 중 적어도 2 개는 수소가 아니고,상기 B는 O, S, Se, 및 NR′으로 이루어진 군에서 선택되는 것이고,상기 C 및 D 는 서로 같거나 다른 것으로, 각각 독립적으로 CR′ 및 N 으로 이루어진 군에서 선택되는 것이고, 단, B 가 NR′이 아닌 경우 C 는 N 이고,상기 R1 내지 R5, R′, 및 R″는 각각 독립적으로 수소, 할로겐기, 니트릴기, 시아노기, 니트로기, 아미드기, 카르보닐기, 에스테르기, 치환 또는 비치환된 알킬기, 치환 또는 비치환된 알콕시기, 치환 또는 비치환된 알케닐기, 치환 또는 비치환된 사이클로알킬기, 치환 또는 비치환된 아릴기, 치환 또는 비치환된 아릴아민기, 치환 또는 비치환된 헤테로아릴아민기, 치환 또는 비치환된 헤테로고리기, 치환 또는 비치환된 아미노기, BR6R7, 및 SiR6R7R8 으로 이루어진 군에서 선택되는 것이고,이 때, 상기 R6 내지 R8 은 서로 같거나 다른 것으로, 각각 독립적으로 치환 또는 비치환된 알킬기, 및 치환 또는 비치환된 아릴기로 이루어진 군에서 선택되는 것이고,상기 E 는 수소, 니트릴기, 시아노기, 니트로기, 아미드기, 카르보닐기, 치환 또는 비치환된 알킬기, 치환 또는 비치환된 플루오로알킬기, 치환 또는 비치환된 사이클로알킬기, 치환 또는 비치환된 아릴기, 치환 또는 비치환된 헤테로고리기, 및 SO2R9로 이루어진 군에서 선택되는 것이고,이 때, 상기 R9 는 니트릴기, 시아노기, 니트로기, 아미드기, 카르보닐기, 치환 또는 비치환된 알킬기, 치환 또는 비치환된 사이클로알킬기, 치환 또는 비치환된 아릴기, 및 치환 또는 비치환된 헤테로고리기로 이루어진 군에서 선택되는 것이고,상기 L 은 치환 또는 비치환된 아릴기, 및 치환 또는 비치환된 헤테로아릴기로 이루어진 군에서 선택되는 것이고,n 은 0 또는 1 임.)
- 제 1 항에 있어서,상기 유기 광전 소자용 화합물은 하기 화학식 112 로 표시되는 것인 유기 광전 소자용 화합물.[화학식112](상기 화학식 112에서,A1 내지 A12는 서로 같거나 다른 것으로, 각각 독립적으로 CR1 내지 CR12 및 N로 이루어진 군에서 선택되는 것이고, 단, A7 내지 A12 중에서 선택되는 적어도 어느 하나는 반드시 N을 포함하고, 이 때, 상기 R1 내지 R6 중에서 서로 인접한 두 개는 융합링을 형성할 수 있고, 상기 R7 내지 R12 중에서 서로 인접한 두 개는 융합링을 형성할 수 있고,X 는 O, S, Se, 및 NR13 로 이루어진 군에서 선택되는 것이고, Y 는 CR14 또는 N 이고, 단, X 가 O, S, 및 Se 로 이루어진 군에서 선택되는 것인 경우, Y 는 N 이고,L 은 탄소수 6 내지 50 의 치환 또는 비치환된 아릴렌기이고,a 는 0 또는 1 이고, 단, a 가 0 인 경우, A1 내지 A6 는 각각 독립적으로 CR1 내지 CR6 이고, a 가 1 인 경우, A1 내지 A6 중에서 선택되는 적어도 어느 하나는 반드시 N 이고,b 및 c 는 서로 같거나 다른 것으로, 각각 독립적으로 1 내지 3 사이의 정수이고,상기 R1 내지 R14 는 서로 같거나 다른 것으로, 각각 독립적으로 수소, 할로겐기, 니트릴기, 시아노기, 니트로기, 아미드기, 카르보닐기, 에스테르기, 치환 또는 비치환된 알킬기, 치환 또는 비치환된 알킬렌기, 치환 또는 비치환된 알콕시기, 치환 또는 비치환된 알케닐기, 치환 또는 비치환된 알케닐렌기, 치환 또는 비치환된 알키닐기, 치환 또는 비치환된 알키닐렌기, 치환 또는 비치환된 사이클로알킬기, 치환 또는 비치환된 사이클로알킬렌기, 치환 또는 비치환된 아릴기, 치환 또는 비치환된 아릴렌기, 치환 또는 비치환된 아릴아민기, 치환 또는 비치환된 헤테로아릴아민기, 치환 또는 비치환된 헤테로고리기, 치환 또는 비치환된 아미노기, BRR′, 및 SiRR′R″ 로 이루어진 군에서 선택되는 것이고, 이 때, 상기 R, R′, 및 R″은 서로 같거나 다른 것으로, 각각 독립적으로 치환 또는 비치환된 알킬기, 또는 치환 또는 비치환된 아릴기임.)
- 제 1 항에 있어서,상기 유기광전소자용 화합물은 하기 화학식 113 으로 표시되는 것인 유기광전소자용 화합물:[화학식113](상기 화학식 113 에서,A2, A4 내지 A12, 및 A7' 내지 A12' 은 서로 같거나 다른 것으로, 각각 독립적으로 CR2, CR4 내지 CR12, CR7' 내지 CR12' 및 N 로 이루어진 군에서 선택되는 것이고, 단, A7 내지 A12 중에서 선택되는 적어도 어느 하나는 반드시 N 을 포함하고, A7' 내지 A12'중에서 선택되는 적어도 어느 하나는 반드시 N 을 포함하고, 이 때, 상기 R4 내지 R6 중에서 서로 인접한 두 개는 융합링을 형성할 수 있고, 상기 R7 내지 R12 중에서 서로 인접한 두 개는 융합링을 형성할 수 있고, 상기 R7' 내지 R12' 중에서 서로 인접한 두 개는 융합링을 형성할 수 있고,X 는 O, S, Se, 및 NR13 로 이루어진 군에서 선택되는 것이고, Y 는 CR14 또는 N 이고, 단, X 가 O, S, 및 Se 로 이루어진 군에서 선택되는 것인 경우, Y 는 N 이고,L 및 L' 은 서로 같거나 다른 것으로, 각각 독립적으로 탄소수 6 내지 50 의 치환 또는 비치환된 아릴렌기이고,a 및 a' 은 서로 같거나 다른 것으로, 각각 독립적으로 0 또는 1 이고, 단, a 및 a' 이 각각 독립적으로 0 인 경우, A2, A4 내지 A6 는 각각 독립적으로 CR2, CR4 내지 CR6 이고, a 및 a' 이 각각 독립적으로 1 인 경우, A2, A4 내지 A6 중에서 선택되는 적어도 어느 하나는 반드시 N 이고,b 및 b' 은 서로 같거나 다른 것으로, 각각 독립적으로 1 내지 3 사이의 정수이고,상기 R2, R4 내지 R14, R7' 내지 R12' 는 서로 같거나 다른 것으로, 각각 독립적으로 수소, 할로겐기, 니트릴기, 시아노기, 니트로기, 아미드기, 카르보닐기, 에스테르기, 치환 또는 비치환된 알킬기, 치환 또는 비치환된 알킬렌기, 치환 또는 비치환된 알콕시기, 치환 또는 비치환된 알케닐기, 치환 또는 비치환된 알케닐렌기, 치환 또는 비치환된 알키닐기, 치환 또는 비치환된 알키닐렌기, 치환 또는 비치환된 사이클로알킬기, 치환 또는 비치환된 사이클로알킬렌기, 치환 또는 비치환된 아릴기, 치환 또는 비치환된 아릴렌기, 치환 또는 비치환된 아릴아민기, 치환 또는 비치환된 헤테로아릴아민기, 치환 또는 비치환된 헤테로고리기, 치환 또는 비치환된 아미노기, BRR′, 및 SiRR′R″로 이루어진 군에서 선택되는 것이고, 이 때, 상기 R, R′, 및 R″은 서로 같거나 다른 것으로, 각각 독립적으로 치환 또는 비치환된 알킬기, 또는 치환 또는 비치환된 아릴기임.)
- 제 1 항에 있어서,상기 유기 광전 소자용 화합물의 구조는 A3 를 포함하는 대칭축을 기준으로 상하의 치환기가 비대칭 구조인 것인 유기 광전 소자용 화합물.
- 제 1 항에 있어서,상기 A1과 A5 는 서로 동일하지 않고, A2 와 A4 는 서로 동일하지 않은 것인 유기 광전 소자용 화합물.
- 제 1 항에 있어서,상기 화학식 1 에서 R1 내지 R5, R′, 및 R′은 각각 독립적으로 치환 또는 비치환된 탄소수 6 내지 40 의 아릴기인 것인 유기 광전 소자용 화합물.
- 제 1 항에 있어서,상기 화학식 1 에서 R1 내지 R5, R′, 및 R′은 각각 독립적으로 디페닐 아민기, 디나프틸 아민기, 디비페닐 아민기, 페닐 나프틸 아민기, 페닐 디페닐 아민기, 디톨릴 아민기, 페닐 톨릴 아민기, 카바졸기, 및 트리페닐 아민기로 이루어진 군에서 선택되는 아릴아민기인 것인 유기 광전 소자용 화합물.
- 제 1 항에 있어서,상기 화학식 1 에서 R1 내지 R5, R′, 및 R′은 각각 독립적으로 티오펜기, 퓨란기, 피롤기, 이미다졸릴기, 티아졸릴기, 옥사졸릴기, 옥사디아졸릴기, 트리아졸릴기, 피리디닐기, 피라다진기, 퀴놀리닐기, 이소퀴놀리닌기, 아크리딜기, 이미다조피리디닐기, 및 이미다조피리미디닐기로 이루어진 군에서 선택되는 헤테로고리기인 것인 유기 광전 소자용 화합물.
- 제 1 항에 있어서,상기 화학식 1 에서 R1 내지 R5, R′, 및 R′은 각각 독립적으로, 치환된 이미다졸기 또는 치환된 트리아졸기이고, 상기 이미다졸기 또는 트리아졸기의 질소(N) 원소에 결합되는 치환기는 치환 또는 비치환된 알킬기, 치환 또는 비치환된 사이클로알킬기, 치환 또는 비치환된 아릴기, 및 치환 또는 비치환된 헤테로고리기로 이루어진 군에서 선택되는 것인 유기 광전 소자용 화합물.
- 제 1 항에 있어서,상기 화학식 1 에서 R1 내지 R5, R′, 및 B 의 R′ 중에서 선택되는 어느 하나는 아민 치환된 알킬기, 아민 치환된 사이클로알킬기, 아민 치환된 아릴기, 및 아민 치환된 헤테로고리기로 이루어진 군에서 선택되는 치환기로 치환된 것이고,상기 화학식 1 에서 R1 내지 R5, R′, 및 B 의 R′ 중에서 선택되는 다른 어느 하나는 니트릴기, 니트로기, 아미드기, 카르보닐기, 및 치환 또는 비치환된 헤테로고리기로 이루어진 군에서 선택되는 치환기로 치환되는 것인 유기 광전 소자용 화합물.
- 제 2 항에 있어서,상기 화학식 112 에서 R7 내지 R12 중에서 선택되는 어느 하나는 아민 치환된 알킬기, 아민 치환된 사이클로알킬기, 아민 치환된 아릴기, 및 아민 치환된 헤테로고리기로 이루어진 군에서 선택되는 치환기로 치환된 것이고,상기 화학식 112 에서 R1 내지 R6 중에서 선택되는 다른 어느 하나는 니트릴기, 니트로기, 아미드기, 카르보닐기, 및 치환 또는 비치환된 헤테로고리기로 이루어진 군에서 선택되는 치환기로 치환되는 것인 유기광전소자용 화합물.
- 양극, 음극, 및 상기 양극과 음극 사이에 개재되는 적어도 한 층 이상의 유기 박막층을 포함하는 유기 광전 소자에 있어서,상기 유기 박막층 중 적어도 어느 한 층은 본 발명의 제 1 항 내지 제 11 항 중 어느 한 항에 따른 유기 광전 소자용 화합물을 포함하는 것인 유기 광전 소자.
- 제 12 항에 있어서,상기 유기 광전 소자용 화합물은 호스트 재료 또는 전하수송재료로 사용되는 것인 유기 광전 소자.
- 제 12 항에 있어서,상기 유기 박막층은 발광층, 정공수송층, 정공주입층, 전자수송층, 및 전자주입층으로 이루어진 군에서 선택되는 층인 것인 유기 광전 소자.
- 제 12 항에 있어서,상기 유기 박막층 중 적어도 어느 한 층은 상기 유기 광전 소자용 화합물과 환원성 도펀트를 포함하는 것을 특징으로 하는 유기 광전 소자.
- 제 15 항에 있어서,상기 환원성 도펀트는 알카리 금속, 알칼리토류 금속, 희토류 금속, 알카리 금속의 산화물, 알카리 금속의 할로겐화물, 알카리 금속의 유기 착체, 알카리토류 금속의 산화물, 알카리토류 금속의 할로겐화물, 알카리토류 금속의 유기 착체, 희토류 금속의 산화물, 희토류 금속의 할로겐화물, 및 희토류 금속의 유기 착체로 이루어진 군에서 선택되는 것인 유기 광전 소자.
- 제 12 항의 유기 광전 소자를 포함하는 것인 표시장치.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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JP2011543419A JP5731399B2 (ja) | 2008-12-30 | 2009-12-16 | 新規な有機光電素子用化合物およびこれを含む有機光電素子 |
EP09836312.0A EP2377907B1 (en) | 2008-12-30 | 2009-12-16 | Novel compounds for an organic photoelectric device, and organic photoelectric device comprising same |
CN200980153456.9A CN102272262B (zh) | 2008-12-30 | 2009-12-16 | 有机光电装置用新化合物和包括该化合物的有机光电装置 |
US13/171,986 US20110260153A1 (en) | 2008-10-08 | 2011-06-29 | Compound for organic photoelectric device, organic photoelectric device including the same, and display device including the same |
US13/915,802 US8772632B2 (en) | 2008-12-30 | 2013-06-12 | Compound for organic photoelectric device, organic photoelectric device including the same, and display device including the same |
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KR1020080137222A KR101233368B1 (ko) | 2008-10-08 | 2008-12-30 | 신규한 유기 광전 소자용 화합물 및 이를 포함하는 유기 광전 소자 |
KR10-2008-0137222 | 2008-12-30 |
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US13/171,986 Continuation US20110260153A1 (en) | 2008-10-08 | 2011-06-29 | Compound for organic photoelectric device, organic photoelectric device including the same, and display device including the same |
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WO2010076991A2 true WO2010076991A2 (ko) | 2010-07-08 |
WO2010076991A3 WO2010076991A3 (ko) | 2010-09-10 |
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PCT/KR2009/007521 WO2010076991A2 (ko) | 2008-10-08 | 2009-12-16 | 신규한 유기 광전 소자용 화합물 및 이를 포함하는 유기 광전 소자 |
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US (2) | US20110260153A1 (ko) |
EP (1) | EP2377907B1 (ko) |
JP (1) | JP5731399B2 (ko) |
CN (1) | CN102272262B (ko) |
WO (1) | WO2010076991A2 (ko) |
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US9328094B2 (en) | 2011-09-19 | 2016-05-03 | Nitto Denko Corporation | Substituted biaryl compounds for light-emitting devices |
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KR101288557B1 (ko) * | 2008-12-24 | 2013-07-22 | 제일모직주식회사 | 신규한 유기광전소자용 화합물 및 이를 포함하는 유기광전소자 |
WO2014055955A1 (en) * | 2012-10-05 | 2014-04-10 | Rigel Pharmaceuticals, Inc. | Gdf-8 inhibitors |
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KR102343572B1 (ko) | 2015-03-06 | 2021-12-28 | 삼성디스플레이 주식회사 | 유기 발광 소자 |
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KR20190070586A (ko) | 2017-12-13 | 2019-06-21 | 엘지디스플레이 주식회사 | 전자수송 재료용 화합물 및 이를 포함하는 유기 발광 다이오드 |
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- 2009-12-16 EP EP09836312.0A patent/EP2377907B1/en active Active
- 2009-12-16 WO PCT/KR2009/007521 patent/WO2010076991A2/ko active Application Filing
- 2009-12-16 CN CN200980153456.9A patent/CN102272262B/zh active Active
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2011
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2013
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JP2013541526A (ja) * | 2010-09-16 | 2013-11-14 | 日東電工株式会社 | 有機発光デバイスにおける使用のための置換型ビピリジン |
US9328086B2 (en) | 2010-09-16 | 2016-05-03 | Nitto Denko Corporation | Substituted bipyridines for use in organic light-emitting devices |
US9328094B2 (en) | 2011-09-19 | 2016-05-03 | Nitto Denko Corporation | Substituted biaryl compounds for light-emitting devices |
Also Published As
Publication number | Publication date |
---|---|
EP2377907A4 (en) | 2012-07-18 |
JP2012514325A (ja) | 2012-06-21 |
WO2010076991A3 (ko) | 2010-09-10 |
EP2377907A2 (en) | 2011-10-19 |
CN102272262A (zh) | 2011-12-07 |
JP5731399B2 (ja) | 2015-06-10 |
EP2377907B1 (en) | 2014-12-03 |
US20130274471A1 (en) | 2013-10-17 |
US20110260153A1 (en) | 2011-10-27 |
US8772632B2 (en) | 2014-07-08 |
CN102272262B (zh) | 2014-09-10 |
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