- Construction of a Polycyclic Conjugated System Containing a Dibenzazepine Moiety by Cationic Gold(I)-Catalyzed Cycloisomerization
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A new π-conjugated system of nitrogen-containing polycyclic compounds was constructed by cationic AuI-catalyzed cycloisomerization. Intramolecular reaction of 9-(2-alkynylphenyl)-9H-carbazole derivatives gave a variety of penta- and hexacyclic compounds possessing a dibenzazepine skeleton. The rigid carbazole structure was responsible for efficient 7-endo-dig cycloisomerization.
- Ito, Mamoru,Kawasaki, Ryosuke,Kanyiva, Kyalo Stephen,Shibata, Takanori
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Read Online
- Efficient synthesis of π-extended phenazasilines for optical and electronic applications
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The rhodium-catalyzed synthesis of phenazasilines from readily achievable biarylhydrosilanes is presented. This highly efficient method offers opportunities for preparing π-extended phenazasilines with enhanced optoelectronic properties for device applications in organic electronics.
- Li, Huanhuan,Wang, Yang,Yuan, Kai,Tao, Ye,Chen, Runfeng,Zheng, Chao,Zhou, Xinhui,Li, Junfeng,Huang, Wei
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Read Online
- A novel spiro-annulated benzimidazole host for highly efficient blue phosphorescent organic light-emitting devices
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A novel host material featuring a spiro-annulated benzimidazole configuration is exploited for blue phosphorescent organic light-emitting devices (PhOLEDs). The new material exhibits a high triplet energy (3.07 eV) and a bipolar characteristic and is effective as the host for FIrpic-, FIr6- and FK306-based blue PhOLEDs with high performances.
- Chen, Wen-Cheng,Yuan, Yi,Zhu, Ze-Lin,Ni, Shao-Fei,Jiang, Zuo-Quan,Liao, Liang-Sheng,Wong, Fu-Lung,Lee, Chun-Sing
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Read Online
- Highly efficient dual-core derivatives with EQEs as high as 8.38% at high brightness for OLED blue emitters
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Three blue fluorescent materials were newly synthesized by attaching triphenylamine side groups at their ortho, meta, and para positions to a dual core moiety of anthracene and pyrene, two chromophores with good luminous efficiency; these three materials were 2-(6-(10-(2-(diphenylamino)phenyl)anthracen-9-yl)pyren-1-yl)-N,N-diphenylaniline (o-TPA-AP-TPA), 3-(6-(10-(3-(diphenylamino)phenyl)anthracen-9-yl)pyren-1-yl)-N,N-diphenylaniline (m-TPA-AP-TPA), and 4-(6-(10-(4-(diphenylamino)phenyl)anthracen-9-yl)pyren-1-yl)-N,N-diphenylaniline (p-TPA-AP-TPA), respectively. The optical, thermal, and electroluminescence (EL) properties of the synthesized materials were measured. All three materials were found to be real blue emitters in the solution state and display high PLQY values. A device doped with p-TPA-AP-TPA displayed a very high efficiency of 9.14 cd A-1 and an EQE of 8.38% at a high luminance of 5000 cd m-2.
- Kang, Seokwoo,Jung, Hyocheol,Lee, Hayoon,Park, Sunwoo,Kim, Joonghan,Park, Jongwook
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p. 14709 - 14716
(2019/12/06)
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- Organic metal compounds and organic light emitting diodes comprising the same
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PURPOSE: An organic metal compound and an organic electroluminescent device containing the same are provided to ensure excellent thermal property and luminescence efficiency, and to be used in a display and a light. CONSTITUTION: An organic metal compound contains a compound of chemical formula 1. An organic electroluminescent device contains the organic metal compound of chemical formula 1. The compound is contained in a light emitting layer between anode and cathode. The organic electroluminescent device comprises one or more layers selected from a hole injection layer, a hole transport layer, an electron blocking layer, a hole blocking layer, an electron transport layer, and an electron injection layer between the anode and the cathode.
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Paragraph 0145; 0148-0151
(2018/10/19)
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- COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICES, ORGANIC ELECTROLUMINESCENCE DEVICE, AND ELECTRONIC DEVICE
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A compound represented by formula (1): wherein each symbol is as defined in the specification, provides a high performance organic electroluminescence device which comprises a cathode, an anode and an organic layer between the cathode and the anode, wherein the organic layer comprises a light emitting layer and at least one layer of the organic layer comprises the compound.
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Paragraph 0204
(2018/07/15)
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- ORGANIC ELECTROLUMINESCENCE DEVICE AND ELECTRONIC DEVICE
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A compound represented by formula (1): wherein R1 to R8, R12 to R18, R21 to R25, R31 to R48, L1 to L3, and Ar are as defined in the specification, provides a high performance organic electroluminescence device which comprises a cathode, an anode and an organic layer between the cathode and the anode, wherein the organic layer comprises a light emitting layer and at least one layer of the organic layer comprises the compound.
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Paragraph 0222
(2018/07/15)
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- COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC APPARATUS
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PROBLEM TO BE SOLVED: To provide a compound that creates an organic EL element showing excellent organic EL performance, an organic EL element containing the compound and showing excellent organic EL performance, and an electronic apparatus containing the organic EL element. SOLUTION: The present invention provides an organic EL element containing, for example, compound 1, and an electronic apparatus containing the organic EL element. SELECTED DRAWING: None COPYRIGHT: (C)2018,JPO&INPIT
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Paragraph 0235-0236
(2018/08/02)
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- Compound, organic electroluminescent apparatus and display device
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The application discloses a compound, an organic electroluminescent apparatus and a display device. The compound is expressed by a formula I. The compound has a thermally activated delayed fluorescence characteristic, can be used as a luminescent material, and is applied to the organic electroluminescent apparatus, so as to prolong the service life and improve the luminescent effect of the organic electroluminescent apparatus. (The structure of the compound is shown in the description).
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Paragraph 0074-0076
(2017/10/13)
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- CARBAZOLE-BASED COMPOUND FOR ORGANIC ELECTROLUMINESCENT DEVICE AND ORGANIC ELECTROLUMINESCENT DEVICE INCLUDING THE SAME
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This invention relates to a compound for an organic electroluminescent device represented by Chemical Formula 1 below and to an organic electroluminescent device including the same. The organic electroluminescent device including the compound is improved in thermal stability and light emission efficiency. When this compound is used as a hole transport layer material, the triplet energy of phosphorescent light emitting material in the organic electroluminescent device is increased, thus improving the efficiency of the organic electroluminescent device.
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Paragraph 0141; 0142; 0143
(2017/08/14)
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- Organic compound, and Organic light emitting diode and Organic light emitting diode display device including the same
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Provided is an organic compound which has a core with a heterocyclic structure including at least two nitrogen, and also ensures high luminous efficiency. The organic compound can be used as a common host for light-emitting material layers, electron transfer layers, and an electrode injection layers, thereby simplifying production processes for organic light-emitting diodes and organic light-emitting diode devices, and ensuring high luminous efficiency with low driving voltage.COPYRIGHT KIPO 2017
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Paragraph 0158; 0171-0174
(2018/01/09)
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- Spirotriphenylamine based star-shaped D-A molecules meeting AIE chromophore for both efficient solution-processed doped and nondoped blue organic light-emitting diodes
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To explore the structure-property of donor-acceptor (D-A) type blue emitter, in this contribution, four star-shaped compounds of p-TPA, m-TPA, p-TPA-TPE and m-TPA-TPE using spirotriphenylamine as the donor unit and triazine as the acceptor core were designed and prepared. The tetraphenylethene (TPE) unit was introduced into the D-A molecules to enhance the emission efficiency in solid state. The photophysical properties of all compounds were comparatively studied through experimental and theoretical methods. All these D-A compounds displayed blue emission (443–487?nm) both in solution and neat film. Compared to p-TPA and m-TPA, p-TPA-TPE and m-TPA-TPE possessed clear aggregated-induced emission (AIE) property and higher emission efficiency in the solid state. Both the doped and non-doped organic light-emitting diodes (OLEDs) based on m-TPA and m-TPA-TPE were fabricated by solution-processable approach. The m-TPA-TPE based non-doped device showed a satisfying performance with a high current efficiency of 4.2?cd/A and an external quantum efficiency of 1.8% in the bluish-green region. This research demonstrates that integrating AIE unit into D-A molecule is an effective strategy for design high efficient blue emitter in non-doped OLEDs.
- Wang, Yafei,Liu, Wanhui,Qu, Zuoming,Tan, Hua,Liu, Yu,Xie, Guohua,Zhu, Weiguo
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p. 173 - 182
(2017/04/27)
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- S-triazine volution arene steric hindrance type bipolar luminescent material and compounding method thereof
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The invention discloses an s-triazine volution arene steric hindrance type bipolar luminescent material and a simple compounding method thereof, and relates to third-generation luminescent display materials and technologies. The specific design structure of the s-triazine volution arene steric hindrance type bipolar luminescent material is shown as below. The material has the advantages of high triplet state energy level, high luminescence efficiency, high thermal decomposition temperature and glass-transition temperature, bipolar transmission characteristic, three-dimensional large-volume steric hindrance effect and simplicity and easiness of the compounding method. The s-triazine volution arene steric hindrance type bipolar luminescent material can be applied to organic electroluminescence devices by taking its initial structure as a main body material. The compound, as the main body material, has wide application prospect and potential commercial value in the field of phosphorescent organic light emitting diodes.
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Paragraph 0037; 0038
(2018/01/11)
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- Efficient Synthesis of All-Aryl Phenazasilines for Optoelectronic Applications
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An efficient metal-free radical-catalyzed intramolecular silylation method has been developed for the preparation of all-aryl phenazasilines, which can be hardly synthesized by traditional synthetic methods. The easily prepared aromatic and rigid phenazasiline exhibits excellent solubility, high thermal stability, and good optoelectronic properties, which are highly attractive for optical and electronic applications in organic electronics. These advances, in the preparation of all-aryl phenazasilines, offer exciting opportunities for sophisticated molecular design and efficient synthesis of optoelectronic molecules based on the phenazasiline.
- Xu, Shen,Li, Huanhuan,Tang, Yuting,Chen, Runfeng,Xie, Xiaoji,Zhou, Xinhui,Xing, Guichuan,Huang, Wei
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p. 419 - 422
(2016/05/19)
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- The organic electroluminescence element and Aminoacridine [...] dehydroascorbic as material for its use
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The present invention relates to compounds of formulae (1), (2) or (3) that are suitable for use in electronic devices, and to electronic device, in particular organic electroluminescence devices, containing these compounds.
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Paragraph 0105-0107
(2016/10/08)
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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 new compound which can improve the light emitting efficiency, stability, and life cycle of an element, an organic electronic element using the compound, and an electronic device using the element. The organic electronic element comprises: a first electrode; a second electrode; and an organic layer located between the first and second electrodes, wherein the compound is included in the organic layer.(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 2015
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Paragraph 0132; 0133; 0134
(2016/10/08)
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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 which can improve light emitting efficiency, stability, and life of an element, an organic electronic element, and an electronic device thereof. The organic electronic element comprises: a first electrode; a second electrode; and an organic layer located between the first electrode and the second electrode, wherein the compound is included in the organic layer.(110) Substrate(120) Positive electrode(130) Hole injection layer(140) Hole transporting layer(141) Buffer layer(150) Light emitting layer(151) Light-emitting assisting layer(160) Electron transfer layer(170) Electron injection layer(180) Negative electrodeCOPYRIGHT KIPO 2015
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Paragraph 0174-0176
(2016/10/08)
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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 which can improve light emitting efficiency, stability, and life of an element, an organic electronic element, and an electronic device thereof. The organic electronic element comprises: a first electrode; a second electrode; and an organic layer located between the first electrode and the second electrode, wherein the compound is included in the organic layer.(110) Substrate(120) Positive electrode(130) Hole injection layer(140) Hole transporting layer(141) Buffer layer(150) Light emitting layer(151) Light-emitting assisting layer(160) Electron transfer layer(170) Electron injection layer(180) Negative electrodeCOPYRIGHT KIPO 2015
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Paragraph 0134-0136
(2016/10/08)
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- Chemoselective amination of bromoiodobenzenes with diarylamines by palladium/Xantphos or ligand-free copper catalysts
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We report the chemoselective amination of bromoiodobenzenes with diarylamines by palladium/Xantphos or a ligand-free copper catalyst. The reactions by these two types of catalysts proceeded with a high chemoselectivity and afforded monobrominated triarylamines in good yields. These products are useful intermediates for the synthesis of unsymmetrical bistriarylamines.
- Kanazawa, Yoshinori,Yokota, Tomo,Ogasa, Hiroshi,Watanabe, Hirotaka,Hanakawa, Taisyun,Soga, Shinichi,Kawatsura, Motoi
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p. 1395 - 1402
(2015/02/19)
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- HOST COMPOUNDS AND ORGANIC LIGHT EMITTING DIODE DEVICES COMPRISING THE SAME
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A host compound according to an embodiment of the present invention is characterized by being represented by chemical formula 1. Here, X is an aromatic ring compound or a hetero ring compound. An organic light emitting diode device is characterized by including at least one organic film, wherein the organic film includes the host compound.COPYRIGHT KIPO 2015
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Paragraph 0052-0054
(2016/11/21)
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- Fluorescent compound and Organic light emitting diode device using the same
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A fluorescent compound overcomes problems of increase in the costs and reduction of productivity by complicated structure, and problems of degradation of light emitting efficiency by reduction of hole mobility. Provided in the present invention is a fluorescent compound represented by the chemical formula, and characterized by having each X and Y independently selected an aromatic ring compound, a hetero-ring compound and amine, and having each R1 and R2 be independently hydrogen or be mutually connected to form an aliphatic-confused ring, an aromatic-confused ring, or a hetero-confused ring.COPYRIGHT KIPO 2015
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Paragraph 0096-0099
(2016/12/07)
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- Synthesis, structural characterization and reactivity of the amino borane 1-(NPh2)-2-[B(C6F5) 2]C6H4
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The bright red title compound 1 was synthesized from (2-lithiophenyl) diphenylamine and bis(pentafluorophenyl)boron chloride. Its reactions with small acids like H2O and HCl proceeded easily giving zwitterionic compounds. For 1 and its water adduct 2 the crystal structures were determined, the latter featuring an ammonium borate structure containing a short intramolecular hydrogen bond bridge. Treatment of 1 with Jutzi's acid, [H(OEt2)2] [B(C6F5)4], did not result in protonation of the nitrogen, but reaction of 1 with LiH in the presence of 12-crown-4, led to the isolation of the aminoborate [1-(Ph2N)-2-{B(H)(C6F5)2} C6H4][Li(12-crown-4)] (3). Borohydride 3 reacted with Jutzi's acid to regenerate 1 and liberate hydrogen.
- Roesler, Roland,Piers, Warren E.,Parvez, Masood
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p. 218 - 222
(2007/10/03)
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- 13C NMR Study of ortho-, meta- and para-Substituted Phenylhiphenylamines: Substituent Effect Correlations
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The 13C chemical shifts of 11 substituted triphenylamines have been determined and the assignment of these resonances made using intensities, 1H and 19F couplings and predictions from bond additivity relationships. 13C chemical shifts at carbons bearing the substituent and at carbons ortho to the substituent correlated reasonably well with the Q parameter.A multiple regression analysis of chemical shifts with the field and resonance parameters of Swain and Lupton and the Q parameter produced significantly better correlations than those obtained when Q was omitted for these positions. 13C chemical shift correlations for carbons meta and para to the substituent were not significantly better than when Q was omitted.Significant correlations were obtained between field and resonance parameters and 13C chemical shifts of C-o and C-p, and C-i, C-o, C-m and C-p of the non-substituent bearing phenyl rings in ortho- and para-substituted phenyldiphenylamines, respectively.
- Grimley, Eugene,Collum, David H.,Alley, Earl G.,Layton, Bobby
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p. 296 - 302
(2007/10/02)
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