- Pyridyl Pyrrolide Boron Complexes: The Facile Generation of Thermally Activated Delayed Fluorescence and Preparation of Organic Light-Emitting Diodes
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The electron positive boron atom usually does not contribute to the frontier orbitals for several lower-lying electronic transitions, and thus is ideal to serve as a hub for the spiro linker of light-emitting molecules, such that the electron donor (HOMO)
- Shiu, Yi-Jiun,Cheng, Yung-Chen,Tsai, Wei-Lung,Wu, Chung-Chih,Chao, Chun-Tien,Lu, Chin-Wei,Chi, Yun,Chen, Yi-Ting,Liu, Shih-Hung,Chou, Pi-Tai
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Read Online
- Novel bifluorene based conjugated systems: Synthesis and properties
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A series of novel bifluorene based systems was synthesised by a convergent approach by means of a Suzuki cross-coupling between 7,7′-bis-(4,4,5,5- tetramethyl-[1,3,2]dioxaborolan-2-yl)-9,9,9′,9′-tetraoctyl-2, 2′-bifluorene and suitable aryl-bromides. All
- Grisorio, Roberto,Dell'Aquila, Antonio,Romanazzi, Giuseppe,Suranna, Gian Paolo,Mastrorilli, Piero,Cosma, Pynalisa,Acierno, Domenico,Amendola, Eugenio,Ciccarella, Giuseppe,Nobile, Cosimo Francesco
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Read Online
- Efficient thermally activated delayed fluorescence of functional phenylpyridinato boron complexes and high performance organic light-emitting diodes
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A new series of functional phenylpyridinato boron complexes possessing thermally activated delayed fluorescence (TADF) has been strategically designed and synthesized. These boron complexes utilize phenylpyridine as the electron acceptor (A) that links to carbazole or triphenyl amine as the electron donor (D) via a core boron atom, forming four-coordinate neutral boron complexes. The selection of boron to spatially separate the donor and acceptor takes advantage of facile functionalization. The TADF properties of the resulting D-A functional materials in various solvents have been investigated via their emission spectra and associated relaxation dynamics. The results show that the operation of TADF is strongly solvent polarity dependent in fluid states, and several underlying mechanisms are discussed. OLEDs fabricated by fppyBTPA and dfppyBTPA show EL efficiencies of up to (20.2%, 63.9 cd A?1, 66.9 lm W?1) and (26.6%, 88.2 cd A?1, 81.5 lm W?1), respectively, in which a nearly 27% EQE for the dfppyBTPA device is among the most efficient TADF OLEDs so far.
- Shiu, Yi-Jiun,Chen, Yi-Ting,Lee, Wei-Kai,Wu, Chung-Chih,Lin, Tzu-Chieh,Liu, Shih-Hung,Chou, Pi-Tai,Lu, Chin-Wei,Cheng, I-Chen,Lien, Yi-Jyun,Chi, Yun
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Read Online
- Imidazolyl-Phenylcarbazole-Based Host Materials and Their Use for Co-host Designs in Phosphorescent OLEDs
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In recent years, owing to the demand for high-efficiency phosphorescent organic light-emitting devices (PhOLEDs), many studies have been conducted on the development of bipolar host materials. A series of imidazolyl-phenylcarbazole-based host materials, i
- Yi, Rong-Huei,Lei, Ya-Chun,Tseng, Yeh-Hsiang,Lin, Yi-Fan,Cheng, Yen-Chia,Fang, Yu-Chuan,Ho, Cheng-Yung,Tsai, Wei-Wen,Chang, Chih-Hao,Lu, Chin-Wei
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- Preparation method of 3 - bromo - N - phenyl carbazole
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The invention relates to a preparation method of 3 -bromo - N -phenyl carbazole, and belongs to the technical field of organic chemistry. To the invention, diphenylamine serves as a starting raw material, and 2 -bromophenylaniline is obtained through bromination reaction. Then, intramolecular cyclization is carried out to obtain carbazole. Then, 3 - bromocarbazole is obtained by bromination reaction. Finally, a substituted 3 - bromo - N -phenyl carbazole is obtained. By controlling the concentration and reaction environment of the reactants, the selectivity of the reaction site is effectively improved, the used raw materials are simple and easy to obtain, the preparation period is relatively short, and the reaction process is simple and easy to control.
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- Thiophene ethylene malononitrile structural compound and preparation method thereof
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The invention discloses a thiophene ethylene malononitrile structural compound and a preparation method thereof. The structural formula is shown in the specification. The thiophene ethylene malononitrile structural compound is obtained through multi-step
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Paragraph 0069-0071
(2021/04/28)
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- Nitrogen-containing compound, electronic element and electronic device
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The invention belongs to the technical field of organic materials, and provides a nitrogen-containing compound represented by a chemical formula 1, an electronic element and an electronic device. Thenitrogen-containing compound can improve the performance of an electronic element.
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Paragraph 0176-0180
(2021/01/29)
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- Aromatic compound and organoelectroluminescent device comprising the compound
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The present invention relates to an aromatic compound and an organic electroluminescent device including the same. The aromatic compound is represented by chemical formula 1, and the organic electroluminescent device is excellent in driving voltage, luminous efficiency and lifetime characteristics.
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Paragraph 0493-0498
(2021/08/31)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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An object of the present invention is to provide a compound capable of improving high luminous efficiency, low driving voltage and lifespan of a device, an organic electric element using the same, and an electronic device thereof. The present invention provides the compound represented by any one of chemical formulas 6 to 9. By using the compound according to the present invention, high luminous efficiency and low driving voltage of the device can be achieved, and the lifespan of the device can be greatly improved.
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Paragraph 0125-0128
(2021/02/16)
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- Functional material based on stable chemical structure
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The invention relates to functional materials based on stable chemical structures. A series of novel donor - acceptor type TADF activated emitters have been designed, which are intended to develop stable OLED. with enhanced operational stability and improved color purity that can be used in full color displays and lighting applications.
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Paragraph 0291; 0296
(2021/08/25)
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- Amine-based compound and organic light emitting diode comprising the same
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Disclosed are an amine-based compound and an organic light emitting device including the same. The amine-based compound is represented by chemical formula 1A.
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- Method for synthesizing high-purity 3-bromine-N-phenylcarbazole
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The invention discloses a method for synthesizing high-purity 3-bromo-N-phenylcarbazole, and belongs to the technical field of chemistry. The method comprises the following steps: dissolving N-phenylcarbazole in a solvent, sequentially adding a brominatin
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Paragraph 0049-0084
(2021/01/24)
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- Organic compound, and organic electroluminescent device and electronic device using the same
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The present invention relates to an organic compound and an organic electroluminescent device and an electronic device using the same, wherein the organic compound has a structure formed by combining an indole carbazole-based planar conjugated group in a fused manner and a dibenzofuran substituted with an aryl group. The structure has higher hole mobility and higher energy transfer efficiency, and is suitable for being used as a light-emitting host material in an organic electroluminescent device. When the organic compound is used as a light emitting host material in an organic electroluminescent device, the light emitting efficiency and the service life of the device can be effectively improved, and the working voltage is reduced.
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Paragraph 0129-0131; 0132; 0135
(2021/11/10)
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- COMPOSITION, ORGANIC OPTOELECTRONIC DEVICE, AND DISPLAY DEVICE
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A composition including a first compound represented by a combination of Chemical Formula 1 and Chemical Formula 2, and a second compound represented by Chemical Formula 3, an organic optoelectronic device, and a display device are related. In Chemical Formula 1 to Chemical Formula 3, each substituent is the same as described in the specification.
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Paragraph 0163; 0168-0169; 0280-0282
(2021/03/13)
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- Method for synthesizing N-aryl carbazole compound by catalyzing reaction of carbazole with aryl hydrazine by using transition metal
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The invention relates to a method for synthesizing an N-aryl carbazole compound by catalyzing reaction of carbazole with aryl hydrazine through transition metal. According to the method, a transitionmetal salt is used as a catalyst, a carbazole compound and an aryl hydrazine compound are used as reaction substrates, the reaction substrates and an alkali compound are added into a solvent for a reaction for a certain period of time to obtain a reaction solution, and the reaction solution is separated and purified to obtain the N-aryl carbazole compound. According to the method, low-boiling-point acetonitrile is used as a reaction solvent, so post-reaction treatment is easy to carry out; oxygen in the air serves as an oxidizing agent, so reaction conditions are environmentally friendly and safe, cost is low, and excessive oxidation is avoided; an aryl hydrazine compound is used as an arylation reagent, and reaction byproducts only comprise water and nitrogen, so the method is environment-friendly and pollution-free; the transition metal salt is used as the catalyst, the activity of the transition metal salt is high, the use of equivalent noble metals is avoided, and synthesis cost isreduced; and generally speaking, the synthesis method is friendly to environment, simple in process, good in reaction selectivity and high in yield, and has a relatively strong industrial applicationprospect.
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Paragraph 0077-0080; 0100
(2020/12/14)
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- Preparation method of high-purity 3-bromo -9- phenyl carbazole
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The invention discloses a preparation method of high-purity 3-bromine-9-phenylcarbazole, and belongs to the field of synthesis of organic chemicals. The method comprises the following steps: (1) conducting a nitratlon reaction on benzene dibromide to prepare an intermediate, that is, 1,4-dibromo-2-nitrobenzene; (2) enabling 1,4-dibromo-2-nitrobenzene and diphenylamine to have an Ullmann coupling reaction to prepare an intermediate, that is, (4-bromine-2-nitrobenzophenone) diphenylamine; (3) enabling the intermediate, that is, (4-bromine-2-nitrobenzophenone) diphenylamine to have a reduction reaction to prepare an intermediate, that is, (4-bromine-2-aminophenyl) diphenylamine; and (4) enabling the intermediate, that is, (4-bromine-2-aminophenyl) diphenylamine, to have a diazotization ring closing reaction to prepare 3-bromine-9-phenylcarbazole. 3-bromine-9-phenylcarbazole prepared through the method is used in the fields of OLED photoelectric materials, medicines, dyes, pesticides and the like, and is an important carbazole intermediate; the reaction operation is simple, the cost of the raw materials is low, the yield is relatively high, and the quality is high; and moreover, the process of removing dibromo in the traditional preparation method is avoided, and the production convenience is greatly improved.
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- Heterocyclic com pounds and organic light-emitting diode including the same
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The present invention relates to a novel heterocyclic compound and an organic electroluminescent device comprising the same. The heterocyclic compound is represented by the following Chemical Formula 1, and the organic electroluminescent device including the heterocyclic compound has excellent driving voltage, luminous efficiency, and lifespan properties. Chemical Formula 1. (by machine translation)
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Paragraph 0607-0613
(2021/01/19)
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- An electroluminescent compound and an electroluminescent device comprising the same
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The present invention relates to an organic light-emitting compound represented by [Chemical formula 1]. An organic electroluminescent device comprising the organic light-emitting compound in the present invention has excellent power efficiency, light-emitting efficiency, and long life cycle because the present invention can be operated by a lower driving-voltage in comparison with a device comprising conventional phosphorescent host materials. [Chemical formula 1].
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Paragraph 0266; 0283-0287; 0522-0526
(2020/09/26)
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- Organic compound and application thereof and organic electroluminescence device
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The invention relates to the field of organic electroluminescence devices, and discloses an organic compound and application thereof and an organic electroluminescence device. The compound has a structure shown in a formula (I) or a formula (II) shown in
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Paragraph 0120-0124
(2020/02/20)
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- Phenothiazine dioxide-containing derivatives as efficient hosts for blue, green and yellow thermally activated delayed fluorescence OLEDs
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By conjugating 10-phenyl-10H-phenothiazine-5,5-dioxide (2PTO) with aromatic amine substituents (PhCz and DMACMN), three novel host materials namely 10-(9-phenyl-9H-carbazol-3-yl)-10H-phenothiazine 5,5-dioxide (3CzNPTO), (10-(4-(9H-carbazol-9-yl)phenyl)-10H-phenothiazine 5,5-dioxide (9CzNPTO) and 10-(4-(9,9-dimethylacridin-10(9H)-yl)-2,5-dimethylphenyl)-10H-phenothiazine 5,5-dioxide (DMACMNPTO) were designed and synthesized. DMACMNPTO with thermally activated delayed fluorescence (TADF) properties exhibited bipolar characteristics resulting from the completely separated HOMO/LUMO distribution. Using DMACMNPTO as a host for TADF emitters, devices showed a maximum external quantum efficiency (EQEmax), current efficiency (CEmax) and power efficiency (PEmax) of 18.3%, 33.3 cd A-1 and 37.4 lm W-1 in blue-emitting diodes, 18.6%, 49.1 cd A-1 and 47.2 lm W-1 in green-emitting diodes, and 19.1%, 59.2 cd A-1 and 66.0 lm W-1 in yellow-emitting diodes, respectively. These results corroborated the potential of phenothiazine dioxide-containing derivatives as host materials in a sequence of color TADF-OLEDs.
- Guo, Runda,Huang, Zhi,Liu, Wei,Wang, Lei,Wang, Yaxiong,Xiang, Songpo,Ye, Shaofeng,Zhang, Qing
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p. 3705 - 3714
(2020/03/31)
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- COMPOUND FOR ORGANIC LIGHT EMITTING DIODE, ORGANIC LIGHT EMITTING DIODE HAVING THE SAME, AND DISPLAY APPARATUS HAVING ORGANIC LIGHT EMITTING DIODE
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The present disclosure relates to a compound for an organic electronic device represented by chemical formula 1, an organic electronic device including the same, and a display apparatus including the organic electronic device. Details of chemical formula 1 are as defined on the specification. According to the present invention, it is possible to provide the compound for an organic electronic device having excellent performance.COPYRIGHT KIPO 2020
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Paragraph 0203-0207; 0220
(2020/04/23)
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- Organic compound and device and electronic device using the same
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The invention belongs to the technical field of organic electroluminescent materials, and particularly relates to a carbazole organic compound with an adamantyl substituent. The organic compound provided by the invention can be used as an organic electroluminescent layer material of an organic electroluminescent device, can reduce the luminescent voltage of the organic electroluminescent device, improves the luminescent efficiency of the device and prolongs the service life of the device.
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Paragraph 0214-0220; 0222; 0255-0261
(2020/11/10)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND A ELECTRONIC DEVICE THEREOF
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The present invention refers to novel compounds, organic electroluminescence element and electronic device relates to using the same, according to the present invention emitting efficiency, color purity can be on the organic layer, can be facing ends of the lamps. (by machine translation)
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Paragraph 0062; 0071; 0073-0074
(2019/06/04)
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- ORGANIC COMPOUND, ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITING DEVICE HAVING THE COMPOUND
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The present invention refers to the highest level is calculated by calculating a smallest track occupied molecules track molecules containing molecules path energy level and high energy, low energy corresponds to the energy level path track function is an electron donor moiety containing molecules in both molecules distributed subbands cells with an organic compound, an organic compound applied to the organic light-emitting diodes and organic light-emitting device of the whole structure are disclosed. They are out of charge-transporting organic compounds of the present invention, distributed in charge injection delay caused a rise in drive voltage can be prevent, with an adjacent layer interface region in emission since before al but capable, can be semiconductor layer on the organic layer. (by machine translation)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND A ELECTRONIC DEVICE THEREOF
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The present invention relates to a compound for an organic electric device including a cyclopenta phenanthrene, which improves low driving voltage, color purity, and lifetime characteristics of a device, and to an organic electric device including the same, and an electronic device thereof. The compound for an organic electric device is represented by chemical formula 1. In the chemical formula 1, Ar_1 and Ar_2 are each independently deuterium and a C_6 to C_30 aryl group which is substituted or unsubstituted with at least one substituent selected from the group consisting of an alkyl group having C_1 to C_20, and an aryl group having C_6 to C_30, or a heterocyclic group having C_4 to C_24, which is substituted or unsubstituted with an aryl group having C_6 to C_30 and includes at least one heteroatom of O, N, S and Si.COPYRIGHT KIPO 2019
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- Benzo-biheterocycle compound, display panel and display device
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The invention provides a benzo-biheterocycle compound with a structure shown as formula (I), wherein Y1 and Y2 respectively are oxygen or sulfur atoms; Ar1 and Ar2 respectively are single-bond, substituted or unsubstituted phenyl group, substituted or unsubstituted naphthyl, substituted or unsubstituted anthryl, substituted or unsubstituted phenanthryl, substituted or unsubstituted acenaphthyleneand substituted or unsubstituted heteroaromatic ring; m and n respectively are 0 or 1; D1 and D2 respectively are aryl and heteroaryl; Ar3 and Ar4 respectively are aryl and heteroaryl; R1 is hydrogenatom, phenyl and naphthyl. According to the invention, benzene ring of benzo-biheterocycle is modified; the introduction of thiophene or furan unit is capable of effectively promoting refractive index; thiophene or furan unit is not located on a main conjugated chain and is impossible to effectively expand conjugation or cause red shift of compound absorption spectrum, so that the absorption of the compound in visible region is lower; when the benzo-biheterocycle compound provided by the invention is used as a material of a cathode cap layer, light emitting of OLED (Organic Light Emitting Diode) is not interfered and the OLED can maintain higher color purity.
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Paragraph 0094; 0095; 0096; 0097
(2019/02/06)
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- Benzoheterocyclic compound, display panel and display device
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The invention provides a benzoheterocyclic compound. The benzoheterocyclic compound has a structure represented by formula (I); and in the formula, R1 is any one of hydrogen atom, a C1-C20 alkyl group, a C1-C20 alkoxy group, a phenyl group, a naphthyl gro
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Paragraph 0094-0099
(2019/02/13)
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- Compound, light extraction material, organic photo-electric device and electronic device
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The invention relates to a compound, a light extraction material, an organic photo-electric device and an electronic device. The compound has a structure represented by a formula (I), the index of refraction can be effectively increased by a dibenzothioph
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Paragraph 0123-0127
(2019/10/04)
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- Compound containing aza-5-membered ring and application thereof in organic electroluminescent devices
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The invention discloses a compound containing an aza-5-membered ring and an application thereof in organic electroluminescent devices. The compound is composed of the aza-5-membered ring, has deep HOMO energy level and high hole mobility rate, and is suitable for electronic barrier materials. In addition, the compound has strong group rigidity, has molecules difficult to crystallize and gather, and has good film-forming property. After the compound as an organic electroluminescent functional layer material is applied in OLED devices, the current efficiency, power efficiency and external quantum efficiency of the devices are greatly improved, and the lifetime of the devices is significantly prolonged.
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Paragraph 0058; 0062; 0063
(2019/12/25)
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- Organic electroluminescent device taking anthracene as core compound, and applications thereof
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The invention discloses an organic electroluminescent device taking anthracene as core compound, and applications thereof. The organic electroluminescent device taking anthracene as core compound comprises a cavity transmission layer, a luminescent layer,
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Paragraph 0081; 0082; 0090
(2018/06/21)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND A ELECTRONIC DEVICE THEREOF
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The present invention relates to an indole compound, to a compound for an organic electric element containing a derivative thereof, to an organic electric element using same, and to a corresponding electronic device. According to the present invention, the luminous efficiency, color purity, and lifespan of the element can be improved, and the drive voltage thereof can be decreased.
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Paragraph 0109-0112; 0114
(2018/08/19)
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- Blue light emission of new anthracene derivatives produced using optimized side group link positions
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Using an anthracene chromophore as a core group and a phenyl carbazole chromophore as a side group, three new emitters of blue light, 2-DCPA, 3-DCPA and 4-DCPA, were synthesized. The three compounds differed with regard to the position of the carbazole linked to the core, with 2-DCPA and 4-DCPA using carbazole nodes and 3-DCPA using the lobe position. Density functional theory calculations were performed to determine which positions of the carbazole moiety had node characteristics and which had lobe characteristics. The PLmax values of 2-DCPA, 3-DCPA and 4-DCPA in the film state were in the blue region, at 453, 457, and 452 nm, respectively. Of these materials, 3-DCPA, i.e., that with the linkage to the lobe position, showed the highest efficiency, with a value of 2.91 cd/A, and EQE, with a value of 2.65%. In a doped device using CBP as a host material and 3-DCPA as a dopant, the ELmax emission was observed to be in the deep blue region, at 433 nm, and with a CIE value of (0.150, 0.068).
- Kang, Seokwoo,Jung, Hyocheol,Lee, Hayoon,Lee, Suji,Jung, Mina,Lee, Jaehyun,Chul Kim, Young,Park, Jongwook
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p. 369 - 378
(2018/05/09)
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- Thianthrene compound, display panel and display device
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The invention provides a thianthrene compound with a structure represented by the formula (I) in the description. Ar1 and Ar2 are independently selected from any one of a single bond, substituted or unsubstituted phenyl, substituted or unsubstituted napht
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Paragraph 0086; 0087; 0088; 0089
(2019/01/16)
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- NOVEL ORGANIC HETEROCYCLIC COMPOUND AND LIGHT-EMITTING DEVICE COMPRISING SAME
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The present invention relates to an organic light-emitting compound represented by [Chemical Formula A] and an organic light-emitting device. In Chemical Formula, A, X, Y, Z, and the substituents R1 to R8, and R11 to R20 are as defined in the specification.
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Paragraph 0247-0248
(2018/03/28)
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- Deriving highly oriented organic nanofibers and ternary memory performance: Via salification-induced effects
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A novel pyridine-based organic conjugated molecule (NCPy) has been successfully synthesized and converted into an organic pyridinium salt (NCPy-salt). Highly oriented organic nanofibers and high-quality films were obtained by transforming the molecule to
- Zhang, Cheng,Li, Yang,Zhou, Yan,Zhang, Qijian,Li, Hua,Lu, Jianmei
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supporting information
p. 10610 - 10613
(2018/09/27)
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- ORGANIC LIGHT EMITTING DEVICE AND DISPLAY DEVICE HAVING THE SAME
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An organic light emitting device and a display device including the same, the organic light emitting device including a first electrode; a hole controlling layer on the first electrode; an emission layer on the hole controlling layer; an electron controlling layer on the emission layer; and a second electrode on the electron controlling layer, wherein the emission layer includes a hole transport host material, an electron transport host material, a bipolar host material, and at least one dopant material.
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Paragraph 0126; 0127
(2017/06/30)
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- Organic light-emitting device, and flat panel display device including the same
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Provided are an organic light emitting device and a flat panel display device including the same. The organic light emitting device comprises: a first electrode, a second electrode facing the first electrode, and an organic layer between the first electrode and the second electrode, wherein the organic layer comprises an emission layer; and the organic layer comprises a compound represented by Formula 1 (As shown in the description).
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND ELECTRONIC DEVICE THEREOF
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Disclosed is an organic electronic element including the compound or the composition as a material for a hole injection layer or a hole transport layer. By using a material including deuterium, with a high driving characteristic and a long life span, it is possible to reduce a driving voltage, and increase a luminous efficiency and a device life span in an organic electro-luminescence element.
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- Color-tunable thiazole-based iridium(III) complexes: Synthesis, characterization and their OLED applications
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With respect to the commonly used electron-deficient pyridyl group in the benchmark dopant Ir(ppy)3, incorporating the electron-rich thiazolyl group with different chromophores have not been extensively studied. In this paper, some iridium(III) complexes bearing functional ligands with the thiazolyl moiety were synthesized and characterized by1H and13C NMR, UV–Vis absorption and photoluminescence spectroscopy. The emission color of these thiazole-based Ir(III) complexes can be tuned from yellow to red and the best phosphorescent organic light-emitting device exhibited the maximum external quantum efficiency of 11.1%, current efficiency of 35.8 cd/A and power efficiency of 21.9 lm/W.
- Chau, Nga-Yuen,Ho, Po-Yu,Ho, Cheuk-Lam,Ma, Dongge,Wong, Wai-Yeung
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- New organic compounds and organic electroluminescent device comprising the same
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The present invention provides an organic compound represented by the chemical formula 1, and an organic electroluminescent device comprising the same. The organic compound can be applied to the organic electroluminescent device as a hole transport material, an electron transport material, or a host material of a light-emitting layer, thereby improving light-emitting efficiency, stability, and lifetime of the organic electroluminescent device.COPYRIGHT KIPO 2017
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- CARBAZOLE DERIVATIVES AND ORGANIC LIGHT EMITTING DIODE USING THE SAME
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The present invention relates to a carbazole derivative which is represented by chemical formula 1. The present invention further relates to a coating composition containing the carbazole derivative, an organic light-emitting device using the same, and a
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Paragraph 0314-0315; 0321-0323
(2017/07/23)
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- An electroluminescent compound and an electroluminescent device comprising the same
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The present invention relates to an organic light emitting compound applied to an organic electroluminescent device. The organic light emitting compound is represented by chemical formula 1 or chemical formula 2. The organic electroluminescent device having excellent light emitting properties such as driving voltage, luminance, and long lifespan can be implemented in the case of using the organic light emitting compound as a host compound inside a light emitting layer.COPYRIGHT KIPO 2016
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Paragraph 0159-0161
(2016/10/10)
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- MULTICYCLIC COMPOUND AND ORGANIC ELECTRONIC DEVICE USING THE SAME
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The present invention relates to a polycyclic compound and an organic electroluminescent device using the same. The compound is represented by chemical formula 1. In addition, the compound according to the present invention can be used as an organic layer material of the organic electroluminescent device.COPYRIGHT KIPO 2016
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Paragraph 0244-0246
(2016/10/10)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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Disclosed is a compound represented by chemical formula 1. Also, disclosed is an organic electronic element comprising a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode, wherein the organic layer includes the compound represented by chemical formula 1. If the compound represented by chemical formula 1 is included in the organic layer, light emitting efficiency, stability, engineering life, etc. can be improved.(110) Substrate(120) Positive electrode(130) Hole-injection layer(140) Hole transport layer(141) Buffer layer(150) Light emitting layer(151) Light-emitting assisting layer(160) Electron transport layer(170) Electron injection layer(180) Negative electrodeCOPYRIGHT KIPO 2016
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Paragraph 0123-0125
(2016/10/07)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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The purpose of the present invention is to provide a compound which is capable of having high light-emitting efficiency of an element, having a low driving voltage, and improving durability; an organic electronic element using the same; and an electronic device thereof. The compound is represented by chemical formula 1.(110) Substrate(120) Positive electrode(130) Hole injection layer(140) Hole transport layer(141) Buffer layer(150) Light emitting layer(151) Light-emitting assisting layer(160) Electron transport layer(170) Electron injection layer(180) Negative electrodeCOPYRIGHT KIPO 2016
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Paragraph 0125; 0126; 0127; 0128
(2016/10/07)
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- Condensed-cyclic compound and organic light emitting diode comprising the same
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Disclosed are a condensed-cyclic compound, and an organic light emitting device comprising the same. The condensed-cyclic compound is represented by chemical formula 1. The organic light emitting device comprising the condensed-cyclic compound has low driving voltage, high efficiency, high luminance, and long lifespan.COPYRIGHT KIPO 2016
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- Organic light-emitting device
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Provided is an organic light-emitting device, including a first electrode; a second electrode facing the first electrode; an emission layer disposed between the first electrode and the second electrode; a first hole transport layer that is disposed between the emission layer and the first electrode and includes a first compound and a first charge-generation material; a second hole transport layer that is disposed between the emission layer and the first hole transport layer and includes a second compound; a third hole transport layer that is disposed between the emission layer and the second hole transport layer and includes a third compound and a second charge-generation material; and a fourth hole transport layer that is disposed between the emission layer and the third hole transport layer and includes a fourth compound. The first, second, third, and fourth compounds are each represented by Formula 1 or 2:
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- An electronic transmission material, preparation method and its application
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The invention relates to an electron transport material, and a preparation method and application thereof. The electron transport material uses aryl group as the center, wherein one side is connected with a naphthyridine group with electron transport property, and the other side is connected with a group different from naphthyridine with electron transport property, thereby constituting an unsymmetrical structure. The two sides of the aryl group are connected with different groups, thereby destroying the molecular symmetry, further destroying the molecular crystallinity and avoiding the intermolecular aggregation; and thus, the electron transport material has favorable film-forming property. Most groups in the molecule are rigid groups, thereby enhancing the heat stability of the material. Meanwhile, the aryl group is connected with the groups with electron transport property, so that the material has favorable electron transport capacity and hole barrier capacity, and can be used as an electron transport layer for organic electroluminescent devices.
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- Novel organic electroluminescent compounds and organic electroluminescent device using the same
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The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device using the same and, more specifically, to an organic luminescent compound selected among chemical formula 1 to chemical formula 5. [In chemical formula 1 to chemical formula 5, X and Y are selected among N(Ar_1), O and S, respectively. Ar_1 is able to differentiate from each other, and when Ar_1 is plural, Ar_1 is indicated as Ar_1 or Ar_2. Z_1 to Z_8 are selected among C(Ar_3) and N, respectively. Ar_3 is able to differentiate from each other, and an adjacent Ar_3 is able to form a circle by mutual combination.] The organic electroluminescent compound according to the present invention exhibits excellent luminance efficiency as compared to an existing host material by being used as a host material of an organic electroluminescent material in an OLED device and has excellent durability of materials, thereby being able to manufacture an OLED in which the driving durability of the device is excellent.
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Paragraph 0045; 0046; 0053; 0054; 0107; 0108; 0111; 0112
(2020/03/03)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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The present invention provides a novel compound to improve light emission efficiency and stability of an element and to extend lifespan of the element, an organic electronic element using the same, and an electronic device thereof. The compound is represented by chemical formula 1, wherein m is a constant in the range of zero and four, and n is a constant in the range of zero and three.(140) Hole transfer layer(141) Buffer layer(150) Light emitting layer(151) Light-emitting assisting layer(160) Electron transfer layer(170) Electron injection layer(180) Negative electrode(130) Hole injection layer(120) Positive electrode(110) SubstrateCOPYRIGHT KIPO 2015
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- COMPOUND FOR ORGANIC ELECTRIC ELEMENT, ORGANIC ELECTRIC ELEMENT COMPRISING THE SAME AND ELECTRONIC DEVICE THEREOF
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The present invention provides a compound represented by Chemical Formula 1. Moreover, provided is an organic electric element including a first electrode, a second electrode, and an organic material layer between the first electrode and the second electrode, wherein the organic material layer includes the compound represented by Chemical Formula 1. When the compound represented by Chemical Formula 1 is included in the organic material layer of the organic electric element, a driving voltage is reduced, and light emitting efficiency, color purity, and lifecycle may be improved.(110) Substrate(120) Positive electrode(130) Hole injecting layer(140) Hole transporting layer(141) Buffer layer(150) Light-emitting layer(151) Light-emitting assisting layer(160) Electron transferring layer(170) Electron injecting layer(180) Negative electrodeCOPYRIGHT KIPO 2015
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