WO2006049271A1 - 有機電子機能材料及びその利用 - Google Patents
有機電子機能材料及びその利用 Download PDFInfo
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- WO2006049271A1 WO2006049271A1 PCT/JP2005/020336 JP2005020336W WO2006049271A1 WO 2006049271 A1 WO2006049271 A1 WO 2006049271A1 JP 2005020336 W JP2005020336 W JP 2005020336W WO 2006049271 A1 WO2006049271 A1 WO 2006049271A1
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- tris
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- hole transport
- functional material
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- 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
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
- C07C211/54—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to two or three six-membered aromatic rings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/22—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
- H10K50/16—Electron transporting layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/321—Metal complexes comprising a group IIIA element, e.g. Tris (8-hydroxyquinoline) gallium [Gaq3]
- H10K85/324—Metal complexes comprising a group IIIA element, e.g. Tris (8-hydroxyquinoline) gallium [Gaq3] comprising aluminium, e.g. Alq3
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/10—Transparent electrodes, e.g. using graphene
- H10K2102/101—Transparent electrodes, e.g. using graphene comprising transparent conductive oxides [TCO]
- H10K2102/103—Transparent electrodes, e.g. using graphene comprising transparent conductive oxides [TCO] comprising indium oxides, e.g. ITO
Definitions
- the present invention relates to an organic electronic functional material, and more particularly, is composed of 1,3,5-tris (4- (N, N-diallylamino) phenyl) benzenes, and clearly demonstrates the stability of repeated redox.
- the present invention relates to an organic electronic functional material that can be suitably used as a hole transport agent or the like in various electronic devices including an organic electoluminescence element.
- a light emitting device using an organic compound having a reducing function and capable of forming an amorphous film as an electronic functional material for example, a hole transport agent, for example, an organic electroluminescent device, and various semiconductors
- a hole transport agent for example, an organic electroluminescent device
- a binder Kazuki J3 effect such as a polystrength Ponate and so on.
- a nitrogen-containing polynuclear aromatic organic compound called a “starbust” molecule that can form an amorphous film by itself, there is a method of depositing this on a substrate to form an amorphous film.
- the organic compound in the formed amorphous film, is diluted with the binder resin and influenced by the organic resin.
- the function cannot be fully demonstrated.
- an amorphous film that is stable at room temperature can be formed, but the low molecular weight organic compound itself has a low glass transition temperature and is inferior in heat resistance, and the stability and life of the amorphous film. There is a problem in life.
- Nitrogen-containing polynuclear aromatic compounds called “starpath” molecules are divided into three groups based on their molecular structure: triphenylamine skeletons (triphenylamines), triaminobenzene skeletons (triamino) Benzenes) and triphenylbenzene skeletons (triphenylbenzenes).
- triphenylamines As triphenylamines, as described in JP-A-01-224353, 4, 4 ', 4 "tris (N, N-diphenylamino) triphenylamine (TD ATA) and 4 , 4 ', 4 "Totris (N-Feniru N-m-Tolylamino) Triphenylamine (m-MTDATA) is known, and as described in JP-A-08-291115, 4, 4 ', 4 "—Tris (N— (2-naphthyl) -N-phenylamino) Triphenylamine (2-TNATA) etc. are also known. These triphenylamines are redox.
- TDATA and m-MTDATA have difficulty in heat resistance
- TNATA has a glass transition temperature of around 110 ° C. Although excellent, it is easy to crystallize. There is.
- Triphenylbenzenes include 1, 3, 5— ⁇ squirrels (4—N, as described in “Pand One Technical” Report, No. 2, pp. 9-18 (1998)).
- N-diphenylaminophenyl) benzene (TDAPB) and 1,3,5-tris (41- (N-tolyl-N-phenylaminophenyl) benzene (MTDAPB) are known.
- TDAPB N-diphenylaminophenyl) benzene
- MTDAPB 1,3,5-tris
- These triphenylbenzenes Forms an amorphous film and has an oxidation potential of 0.6 to 0.7 V, but its oxidation-reduction is irreversible, so it is not practical as an electronic functional material such as a hole transporting agent.
- 1,3,5-tris (N-methylphenyl-N-phenylamino) benzene (MTDAB) is known as an aminobenzene, although its oxidation potential is 0.6 to 0.7 V. Since redox is irreversible, similarly, organic electrons Poor practicality as an active material, Furthermore, redox is reversible, oxidation potential is in the range of 0.5 to 0.7 V, excellent heat resistance, and an organic film that can form an amorphous film by vapor deposition.
- P-MTPNAB and p-MTPBAB have reversible oxidation-reduction, high oxidation potential, and high glass transition points of 87 ° C and 98 ° C, respectively, but when redox is repeated, Since the current at the peak of the oxidation curve tends to decrease, the performance stability and durability as an organic electronic functional material may not be sufficient.
- the present invention has been made in order to solve the above-mentioned problems in organic electronic functional materials, has a light-electron conversion function, is reversible in redox, and forms an amorphous film by itself.
- the object of the present invention is to provide an organic electronic functional material having a high glass transition temperature and a small change in peak current value even in repeated oxidation-reduction, and hence excellent stability.
- Such an organic electronic functional material can be suitably used as, for example, a hole transport agent in various electronic devices including an organic electoluminescence element. Disclosure of the invention
- R represents an alkyl group having 1 to 6 carbon atoms or a cycloalkyl group having 5 or 6 carbon atoms, and n is 0, 1, 2 or 3.
- an organic electoluminescence device having a hole transporting agent composed of the organic electronic functional material and a hole transporting layer containing such a hole transporting agent.
- FIG. 1 is a cross-sectional view of an example of an organic electoluminescence device.
- Fig. 2 shows the differential scanning calorimetry (DSC) of 1, 3, 5-tris (4- (N, N-ji P-tolylamino) phenyl) benzene (p-DMTDAPB), which is the organic electronic functional material of the present invention. ) Curve.
- Fig. 3 shows the cyclic portagram of 1,3,5-tris (4 (N, N-di-P-tolylamino) phenyl) benzene (p-DMTDAPB), which is the organic electronic functional material of the present invention. is there.
- Fig. 4 shows the differential scanning heat of 1, 3, 5-tris (p- (N-phenyl-N-m-tolyl) aminophenyl) benzene (m-MTDAPB), which is an organic electronic functional material as a comparative example. It is a quantitative (DS C) curve. ⁇
- Fig. 5 is a cyclic portamgram of 1, 3, 5-tris (p-N-phenol N-m-tolyl) phenyl) benzene (m-MTDAPB), an organic electronic functional material as a comparative example. is there.
- Fig. 6 shows positive results using an organic electronic functional material consisting of 1,3,5-tris (4 (N, N-di-p-tolylamino) phenyl) benzene (p_DMTDAPB) according to the present invention as a hole transporting agent.
- p_DMTDAPB 1,3,5-tris (4 (N, N-di-p-tolylamino) phenyl) benzene
- FIG. 7 shows an organic electoluminescence device having a hole injection layer made of copper phthalocyanine and a hole transport layer made of an organic electronic functional material according to the present invention (Example 2), and a hole injection made of 2-TNATA.
- An organic-electric luminescence device comprising a hole transport layer made of p-DMTDAPB according to the present invention (Example 3), a hole injection layer made of 2-TNATA, and 4, 4 ′ single screw [N— (1 —Naphthyl 1 N-phenylamino]
- Organic electroluminescent device with a hole transport layer composed of biphenyl ( ⁇ -NPD) (Comparative Example 3) and copper lid port 4 is a graph showing voltage-luminance characteristics of an organic electroluminescent element (Comparative Example 4) provided with a hole transport layer.
- the organic electronic functional material according to the present invention has the general formula (I)
- R represents an alkyl group having 1 to 6 carbon atoms or a cycloalkyl group having 5 or 6 carbon atoms, and n is 0, 1, 2 or 3.
- the groups A and B have the above alkyl group or cycloalkyl group.
- Groups A and B may be the same as each other or different from each other.
- Functional materials are particularly well-balanced in terms of redox reversibility, acidity potential, and heat resistance.
- the alkyl group is, for example, a methyl, propyl, butyl, pentyl or hexyl group, which may be linear or branched, but is preferably a methyl group.
- the cycloalkyl group is a double-ended pentyl or a double-ended hexyl group.
- 1,3,5-tris (4- (N, N-di-p-tolylamino) phenyl) amino) represented by (1) is an organic electronic functional material consisting of benzene that has excellent stability against repeated redox. Therefore, it can be suitably used as a hole transport agent in various electronic devices.
- Such 1,3,5-tris (4 (N, N-di-p-tolylamino) phenyl) amino) benzene as shown in the following scheme, for example, bis (4tolyl) amine (2 ) And 1,3,5-tris (4-chlorophenyl) benzene (3).
- the organic electronic functional material according to the present invention has 1,3,5-tris (4_ (N, N-diarylamino) phenyl) benzenes, each aryl group in each arylamine group.
- the chemically active site of the terminal phenyl group preferably the phenyl group
- 1,3,5-tris (4- (N, N-diallylamino) phenyl) Benzene redox, high acid potential, high glass transition point, and repeated redox Durability has been imparted, and thus it has succeeded in reducing the change in peak current in repeated redox, and it can be suitably used as a stable and durable organic electronic functional material in various electronic devices. be able to.
- an organic electronic functional material composed of 1,3,5-tris (4- (N, N-diallylamino) phenyl) benzenes according to the present invention is an amorphous film which is stable at room temperature by vapor deposition or the like. In addition to being excellent in redox reversibility, it has a high oxidation potential and a high glass transition point. For example, it can be suitably used as a hole transport agent in an organic electoluminescence device. be able to.
- Organic-electric luminescence elements have low-voltage direct current drive, high efficiency, high brightness, and can be thinned. In addition to backlights and lighting devices, they have recently been put into practical use as display devices. Yes.
- the organic-electric-mouth luminescence element has an anode made of a transparent electrode such as an ITO film (indium tin oxide film) on a transparent substrate 1 made of glass. 2 are adhered and supported in close contact, and a hole injection layer 3a, a hole transport layer 3, a light emitting layer 4 and a cathode 5 made of a metal or a compound thereof are laminated in this order on this transparent electrode. Is.
- the anode and cathode are connected to an external power source 6.
- the hole injection layer 3 a may be omitted, or an electron transport layer may be stacked between the light emitting layer and the cathode, and between the anode and the hole transport layer.
- a conductive polymer layer may be laminated.
- organic electroluminescence elements having various configurations are known.
- the organic electroluminescent device according to the present invention includes a hole transport layer (and a positive layer) using the above-described 1,3,5-tris (4 (N, N-diallylamino) phenyl) benzenes as a hole transport agent.
- the layered structure is not particularly limited.
- the film thickness of the hole transport layer (and hole injection layer) is usually about 10 to 200 nm (respectively).
- an organic electoluminescence device having a laminated structure as described above.
- the hole transport layer is in close contact with the anode and transports holes from this electrode to the light emitting layer and blocks electrons, while the electron transport layer is in close contact with the cathode. Electrons are transported from the cathode to the light-emitting layer, where light is emitted when electrons injected from the cathode and holes injected from the anode into the light-emitting layer are recombined in the light-emitting layer. And radiated to the outside through the transparent substrate.
- the layers other than the hole transport layer that is, the transparent substrate, the anode, the light emitting layer, the electron transport layer, and the cathode, which are conventionally known are suitable.
- a transparent electrode made of, for example, indium tin oxide (ITO) or tin oxide-indium oxide is used as the anode, and a single metal such as aluminum, magnesium, indium, silver, or an alloy thereof is used as the cathode.
- ITO indium tin oxide
- a single metal such as aluminum, magnesium, indium, silver, or an alloy thereof is used as the cathode.
- an electrode made of a metal compound such as A 1-Mg alloy or Ag-Mg alloy is used, and a glass substrate is usually used as the transparent substrate.
- the film thickness is usually in the range of 10 to 200 nm.
- the thickness of the electron transport layer is usually in the range of 10 to 200 nm.
- the thickness of the electron transport layer is usually 10 to 200 nm. It is a range. '
- the organic electronic functional material according to the present invention is used as a hole transport agent, the energy gap between the anode and the hole transport layer is reduced to facilitate the transport of holes from the anode to the hole transport layer. Therefore, a hole injection layer using copper phthalocyanine (CuPC), which is conventionally known, as a hole injection agent may be provided between the anode and the hole transport layer.
- CuPC copper phthalocyanine
- the organic electronic functional material according to the present invention uses this as a hole-feeding agent and has the general formula (III)
- the obtained organic electro By forming a hole injecting and transporting layer formed by laminating a hole injecting layer as a hole injecting agent and a hole transporting layer using the organic electronic functional material according to the present invention as a hole transporting agent, the obtained organic electro The voltage-luminance characteristics of the luminescence element can be further improved.
- the tris (41 ( ⁇ , ⁇ -diarylamino) phenyl) amine represented by the above general formula (I II) and the present invention can be used.
- the hole transport layer may be formed using a uniform mixture with the organic electronic functional material as a hole transport agent.
- X and ⁇ are aryl groups which may be the same or different from each other.
- aryl groups include, for example, phenyl group, o-, m- or ⁇ -tolyl group, 1- or 2-naphthyl group, 4-p-biphenylyl group, 4-p-terphee.
- a diryl group etc. can be mentioned.
- the organic electronic functional material according to the present invention is composed of 1,3,5-tris (4 (N, N-diallylamino) phenyl) benzenes represented by the general formula (I), and is reversible redox.
- 1,3,5-tris (4 (N, N-diallylamino) phenyl) benzenes represented by the general formula (I) is reversible redox.
- the deviation of the peak current of the 50 cycles with a sweep rate of 2 OmV / sec is within ⁇ 10% of the average value of the peak current.
- various electric devices for example, organic electoluminescence In scan element, it can be suitably used as a 3 ⁇ 4 "machine electronic functional material such as a hole transport agent.
- the reaction product was purified by recrystallization and sublimation purification to obtain 4.3 g of the desired 1,3,5-tris (4- (N, N-di-p-tolylamino) phenyl) benzene. .
- the yield was 15.1%.
- DSC Differential scanning calorimetry
- p-DMTDAPB was weighed as a sample, melted once in a differential scanning calorimeter, and then rapidly cooled in liquid nitrogen to form an amorphous glass. Next, thermal characteristics were measured at a heating rate of 5 / min with reference to an aluminum plate. As shown in Fig. 2 of the DSC chart, the glass transition point (Tg) was 126.3 ° C, the crystallization temperature (Tc) was 184.2, and the melting point (Tm) was 261.2 ° C. .
- the p-DMTDAPB dissolved in dichloromethane, and adjusted to 10- 3 M concentration. Using (n—C 4 H 9 ) 4 NC 1 O 4 (0.1 M) as the supporting electrolyte and using AgZA g + as the reference electrode, the redox characteristics were measured at a scan rate of 2 OmV / sec. did. As shown in Fig. 3, the oxidation potential, defined as the average value of the peak potential of the oxidation curve and the peak potential of the reduction curve, is 0.5 6 V (vs Ag / Ag + ) and is measured 50 times. in has reversible redox, moreover, the average value of 5. 488 X 10- 6 a of the oxidation curve peak current, maximum 5.
- 1,3,5-tris (4-monophenyl) benzene 15. Og and N-m-tolulu N monophenylamine 16.1 g, potassium carbonate 60.6 g and copper powder 7.8 g mesitylene
- the mixture was charged into a 50 OmL glass flask together with 13 OmL, and reacted at 165 ° C for 38 hours under a nitrogen atmosphere. After completion of the reaction, the resulting reaction mixture was extracted with toluene, and this toluene solution was subjected to silica gel chromatography to fractionate the reaction product. The reaction product is purified by recrystallization from toluene / ethanol and then purified by sublimation. The desired 1,3,5-tris (p-N-phenyl-N-m-tolyl) aminophenyl) benzene ( m—MT DAPB) 2.3 g was obtained. The yield was 10.5%. ⁇
- the m-MTDAPB was dissolved in dichloromethane, and adjusted to 10- 3 M concentration. Redox characteristics were measured at a scan rate of 10 OmV / sec using (n—C 4 H 9 ) 4 NC 1 O 4 (0.1 M) as the supporting electrolyte and AgZAg + as the reference electrode. As shown in Figure 5, acid The oxidation potential, defined as the average of the peak potential of the conversion curve and the peak potential of the reduction curve, is 0.6.
- a plate glass (manufactured by Yamato Vacuum Co., Ltd.) coated on one side was subjected to ultrasonic cleaning using acetone and steam cleaning using methanol, and then irradiated with ultraviolet light for 10 minutes using a low-pressure mercury lamp.
- copper phthalocyanine (CuPC) was vapor-deposited on each of the ITO coatings using a vacuum vapor deposition device to form a 20 nm thick hole injection layer, and then p-DMTDAPB was vapor-deposited thereon.
- a hole transport layer having a thickness of 40 nm was formed.
- a thickness of tris (8-quinolinol) aluminum (Al q 3 ) is formed on the hole transport layer.
- a 75 nm light-emitting layer is formed, and a 0.5 nm thick lithium fluoride layer and a 100 nm thick aluminum layer are sequentially deposited on the light emitting layer to form a cathode.
- a luminescence element was obtained.
- Example 2 except that p-DMTDAPB was replaced with 1, 3, 5-tris (p-N-phenol N-m-tolyl) aminophenol) benzene (m-MTDAPB) Thus, an organic electoluminescence device was obtained.
- the initial luminance of 1000 cd / m 2 when a voltage was applied between the electrodes of the organic-electric-luminescence element was taken as 100%, and the subsequent time variation in luminance was examined. The results are shown in Fig. 6.
- the organic electroluminescence device having a hole transport layer using p-DMTDAPB as a hole transport agent according to the present invention has a m-MTDAPB for comparison. Compared to organic-electric-luminescence devices equipped with a hole-transporting layer as a hole-transporting agent, it has excellent lifetime characteristics.
- Example 3
- a plate glass (manufactured by Yamato Vacuum Co., Ltd.) coated on one side was subjected to ultrasonic cleaning using acetone and steam cleaning using methanol, and then irradiated with ultraviolet light for 10 minutes using a low-pressure mercury lamp.
- 4, 4 'and 4 "tris (N- (2_naphthyl) -N-phenylamino) triphenylamine (2-TNATA) were vapor-deposited on the ITO coating using a vacuum deposition system.
- p-DMTDAPB was deposited thereon to form a hole transport layer having a thickness of 10 nm.
- a 75 nm thick light-emitting layer made of tris (8-quinolinol) aluminum (Al q 3 ) is formed, and then a 0.5 nm thick lithium fluoride layer and a 100 nm thick A 1 layer are sequentially formed thereon.
- the cathode was formed by vapor deposition and lamination, and thus an organic electoluminous element was obtained.
- Example 3 except that p-DMTDAPB was replaced with 4,4'-bis [N- (1-naphthyl) -N-phenylamino] biphenyl (a-NPD) An electroluminescence element was obtained. A voltage was applied between the electrodes of this organic electoluminescence device, and the voltage-luminance characteristics were examined. The results are shown in Fig. 7. Comparative Example 4
- Example 3 a hole injection layer having a thickness of 20 nm made of copper phthalocyanine (CuPC) was formed instead of 2-TNATA, and a 40 nm thickness made of a-NPD was formed thereon instead of p-DMTDAPB.
- An organic electoluminescence element was obtained in the same manner except that the hole transport layer was formed. A voltage was applied between the electrodes of the organic electoluminescence device, and the voltage-luminance characteristics of the organic electroluminescence device were examined. Result Shown in Figure 7.
- an organic material comprising a hole transport layer comprising p-DMTDAPB as a hole transport agent according to the present invention and a hole injection layer comprising a conventionally known hole inject agent.
- the electroluminescence device (Examples 2 and 3) includes a hole transport layer made of a conventionally known hole transport agent and a hole injection layer made of a conventionally known hole injecting agent. Compared with the organic electroluminescence element (Comparative Examples 3 and 4), when the applied voltage is the same, it has higher luminance.
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- Inorganic Chemistry (AREA)
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Abstract
Description
Claims
Priority Applications (2)
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EP05805397A EP1826837A4 (en) | 2004-11-05 | 2005-10-31 | ORGANIC FUNCTIONAL MATERIAL USED IN ELECTRONICS AND USE THEREOF |
US11/667,134 US20090066222A1 (en) | 2004-11-05 | 2005-10-31 | Organic electronic functional material and use thereof |
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JP2004-322782 | 2004-11-05 | ||
JP2004322782A JP2006135103A (ja) | 2004-11-05 | 2004-11-05 | 有機電子機能材料及びその利用 |
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US (1) | US20090066222A1 (ja) |
EP (1) | EP1826837A4 (ja) |
JP (1) | JP2006135103A (ja) |
KR (1) | KR20070093061A (ja) |
CN (1) | CN101053092A (ja) |
TW (1) | TW200624411A (ja) |
WO (1) | WO2006049271A1 (ja) |
Cited By (1)
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EP2056371A1 (en) * | 2006-08-04 | 2009-05-06 | Bando Chemical Industries, Ltd. | Organic electroluminescence element |
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WO2020231213A1 (ko) * | 2019-05-15 | 2020-11-19 | 주식회사 엘지화학 | 유기발광소자용 재료의 선별방법 |
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DE19812258A1 (de) * | 1998-03-20 | 1999-09-23 | Bayer Ag | Elektrolumineszierende Anordnungen unter Verwendung von Blendsystemen |
DE19829948A1 (de) * | 1998-07-04 | 2000-01-05 | Bayer Ag | Elektrolumineszierende Anordnung unter Verwendung von Azomethin-Metallkomplexen |
DE19839947A1 (de) * | 1998-09-02 | 2000-03-09 | Bayer Ag | Elektrolumineszierende Anordnungen mit Thiophencarboxylat-Metallkomplexen |
DE19839946A1 (de) * | 1998-09-02 | 2000-03-09 | Bayer Ag | Elektrolumineszierende Anordnungen mit mehrkernigen Metallkomplexen |
US6572985B2 (en) * | 2000-12-15 | 2003-06-03 | Shuang Xie Light Corporation | Electroluminescent compositions and devices |
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2004
- 2004-11-05 JP JP2004322782A patent/JP2006135103A/ja not_active Withdrawn
-
2005
- 2005-10-31 WO PCT/JP2005/020336 patent/WO2006049271A1/ja active Application Filing
- 2005-10-31 US US11/667,134 patent/US20090066222A1/en not_active Abandoned
- 2005-10-31 KR KR1020077012115A patent/KR20070093061A/ko not_active Application Discontinuation
- 2005-10-31 EP EP05805397A patent/EP1826837A4/en not_active Withdrawn
- 2005-10-31 CN CNA2005800378353A patent/CN101053092A/zh active Pending
- 2005-11-01 TW TW094138204A patent/TW200624411A/zh unknown
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2056371A1 (en) * | 2006-08-04 | 2009-05-06 | Bando Chemical Industries, Ltd. | Organic electroluminescence element |
EP2056371A4 (en) * | 2006-08-04 | 2011-04-27 | Bando Chemical Ind | ORGANIC ELECTROLUMINESCENT ELEMENT |
Also Published As
Publication number | Publication date |
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EP1826837A4 (en) | 2009-03-04 |
CN101053092A (zh) | 2007-10-10 |
EP1826837A1 (en) | 2007-08-29 |
TW200624411A (en) | 2006-07-16 |
KR20070093061A (ko) | 2007-09-17 |
JP2006135103A (ja) | 2006-05-25 |
US20090066222A1 (en) | 2009-03-12 |
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