- Tris(4-(1-phenyl-1H-benzo[d]imidazole)phenyl)phosphine oxide for enhanced mobility and restricted traps in photovoltaic interlayers
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Among small molecule organic materials, tris(4-(1-phenyl-1H-benzo[d]imidazole)phenyl)phosphine oxide (TIPO) and 2,4,6-tris(4-(1-phenyl-1H-benzo[d]imidazol)phenyl)-1,3,5-triazine were newly synthesised and introduced into an n-type interlayer in planar per
- Lim, Jihyun,Choi, Do-Yeong,Jang, Woongsik,Choi, Hyeon-Ho,Kim, Yun-Hi,Wang, Dong Hwan
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supporting information
p. 3642 - 3651
(2021/03/26)
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- Organic small molecule electron transport material as well as preparation method and application thereof
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The invention belongs to the technical field of electron transport materials and discloses an organic small molecule electron transport material and a preparation method and application thereof. The organic small molecule electron transport material has t
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Paragraph 0049-0055
(2020/12/06)
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- Heterocyclic compounds and organic light-emitting diode including the same
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The present invention relates to a heterocyclic compound represented by [Chemical Formula 1] below and an organic light-emitting diode including the same. The organic light-emitting diode according to the present invention is excellent in view of luminous characteristics such as driving voltage, lifespan, and efficiency. [Chemical Formula 1].
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Paragraph 0420; 0451-0456
(2020/12/11)
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- Heterocyclic compounds and organic light-emitting diode including the same
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The present invention relates to a new heterocyclic compound, and an organic electroluminescent device including the same as a light emitting material, specifically a heterocyclic compound denoted by chemical formula 1, and an organic electroluminescent device having excellent luminance properties including driving voltage and luminance efficiency.
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Paragraph 0497; 0504-0509
(2021/01/29)
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- Condensed compound and organic light emitting diode comprising the same
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A phosphine oxide-based compound represented by Formula 1, and an organic light-emitting device including the phosphine oxide-based compound. wherein Ar1 through Ar3, and a, b, and c are defined as in the specification.
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Paragraph 0166-0173
(2019/12/13)
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- QUINAZOLINE DERIVED COMPOUNDS FOR ELECTRONIC FILMS AND DEVICES
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The invention provides a composition comprising at least one compound selected from the group consisting of the following (A, B, C and D): A) wherein R1, R2 and R3 are each described herein; and wherein Formula 1 comprises at least three C-N double bonds; and wherein one or more hydrogens may be optionally substituted with deuterium; B) wherein R1’, R2’, R3’, R4’, R5’ and L are each described herein, and and wherein if R1’ comprises a biphenyl, it does not comprises a carbazole; and wherein one or more hydrogens may be optionally substituted with deuterium; C) wherein R1”, R2”, R3”, R4” and R5” are each described; and wherein if R1’ comprises a biphenyl, it does not comprises a carbazole; and wherein one or more hydrogens may be optionally substituted with deuterium; and D) a combination thereof.
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Paragraph 0074-0075
(2019/01/06)
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- Alcohol-Soluble Electron-Transport Materials for Fully Solution-Processed Green PhOLEDs
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Two alcohol-soluble electron-transport materials (ETMs), diphenyl(4-(1-phenyl-1H-benzo[d]imidazol-2-yl)phenyl)phosphine oxide (pPBIPO) and (3,5-bis(1-phenyl-1H-benzo[d]imidazol-2-yl)phenyl)diphenylphosphine oxide (mBPBIPO), have been synthesized. The phys
- Chen, Fudong,Wang, Shirong,Xiao, Yin,Peng, Feng,Zhou, Nonglin,Ying, Lei,Li, Xianggao
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p. 1335 - 1341
(2018/04/30)
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- Organic light emitting host materials
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Disclosed herein are compounds represented by formula: where HT, ET, and R1-R6 are described herein. Compositions of said compounds along with organic light-emitting diode (OLED) devices related thereto are also disclosed.
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Page/Page column 15-17
(2016/09/26)
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- IMIDAZOPYRAZINE DERIVED COMPOUNDS FOR ELECTRONIC DEVICES
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The invention provides a composition comprising at least one compound of Formula 1 through Formula 8, each as described herein. These compounds, containing an imidazopyrazine moiety, are useful in organic electroluminescence devices.
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Paragraph 15; 17
(2017/01/09)
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- An organic electron transport compound
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The invention provides an organic electronic transmission compound having a following structural formula (I) as shown in the specification. The organic electronic transmission compound is better in thermal stability, is high in luminous efficiency and purity, can be used for manufacturing an organic electroluminescence device and is applied to the field of organic solar batteries, organic thin film transistors or organic photoreceptors..
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Paragraph 0065; 0070; 0071
(2016/10/07)
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- A benzimidazole-based electron transport compound
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The invention provides a benzimidazole-based electron transport compound with a structure formula I. The compound has the advantages of relatively good thermal stability, high luminous efficiency and high luminous purity. The compound can be used for manufacturing an organic electroluminescent device and can be applied in the fields of organic solar cells, organic thin-film transistors or organic photoreceptors. The structure formula I is as shown in the specification.
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Paragraph 0061; 0063; 0065
(2016/10/10)
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- COMPOUND, ORGANIC PHOTOELECTRIC CONVERSION DEVICE AND SOLID-STATE IMAGING DEVICE
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A compound of the embodiment includes the structure represented by the following general formula (1). In the general formula (1), R1 to R4 respectively independently represent a hydrogen atom, a linear or branched alkyl group, a fluoroalkyl group, or an aryl group.
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Paragraph 0133
(2016/12/22)
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- Novel hole transport materials based on N,N′-disubstituted-dihydrophenazine derivatives for electroluminescent diodes
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A series of novel hole transport materials for organic light-emitting diodes (OLEDs) based on 9,14-diphenyl- 9,14-dihydrodibenzo[a,c]phenazine were synthesized and characterized by 1H NMR and 13C NMR, mass spectrometry and single crystal structure analysis methodologies. The crystal structures of three selected molecules reveal large dihedral angles between different functional units. The electro-optical properties of the materials were examined by UV-vis absorption, photoluminescence spectroscopy and cyclic voltammetry. The HOMO of the materials were between 4.83-5.08 eV, indicating a good match between the HOMO of indium tin oxide (ITO) and the HOMO of light-emitting layer, which renders the promising candidates as hole transport materials for organic light-emitting devices. In terms of the device with the structure of ITO/HTM (60 nm)/Alq3 (50 nm)/LiF (1 nm)/Al (200 nm), the device b using N,N-diphenyl-4′ -(14-phenyldibenzo[a,c]phenazin-9(14H)-yl)-[1,1′ -biphenyl]-4-amine presented a maximum luminance of 17 437 cd m-2 at 10.7 V and kept a high current efficiency (the maximum current efficiency is 2.25 cd A-1) at a high current density (>500 mA cm-2), which illustrates the exploited material possesses good hole transport and stable properties.
- Zheng, Zhiwen,Dong, Qingchen,Gou, Liao,Su, Jian-Hua,Huang, Jinhai
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p. 9858 - 9865
(2015/02/02)
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- ORGANIC LIGHT EMITTING POLYAROMATIC AND POLYHETEROAROMATIC HOST MATERIALS
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Heteroaryl-aryl compounds such as compounds represented by Formula may be used in electronic devices such as organic light- emitting devices. For example, the compounds may be used as an emissive material in an emissive layer.
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Paragraph 120
(2014/07/07)
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- NEW ELECTRON TRANSPORT MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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Provided are a new electron transport material and an organic electroluminescent device including the same. The electron transport material according to the present invention may have the excellent luminescence property and reduce the driving voltage to increase the power efficiency, such that the organic electroluminescent device using less consumption power may be manufactured.
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Paragraph 180; 181
(2014/01/07)
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- A new electron transporting material for effective hole-blocking and improved charge balance in highly efficient phosphorescent organic light emitting diodes
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A highly efficient new benzoimidazole phosphine oxide based electron transporting material, bis(1-phenyl-1H-benzo[d]imidazole)phenylphosphine oxide (BIPO), was designed, synthesized by condensation, nucleophilic substitution and oxidation reactions, and c
- Yoo, Seung-Jin,Yun, Hui-Jun,Kang, Il,Thangaraju, Kuppusamy,Kwon, Soon-Ki,Kim, Yun-Hi
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p. 2217 - 2223
(2013/06/27)
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- Highly efficient and solution-processed iridium complex for single-layer yellow electrophosphorescent diodes
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A novel electrophosphorescent material based on a biscyclometalated iridium(iii) complex of the N,N-diphenyl-4′′-(1-phenyl-1H-benzo[d] imidazol-2-yl)-[1,1′:4′,1′′-terphenyl]-4-amine ligand, named Ir(TPABPBI)2(acac), has been synthesized and its application in organic light emitting devices (OLEDs) was studied. Highly efficient, solution-processed, single-layer, electrophosphorescent diodes utilizing the complex have been prepared and characterized. In these devices, the high triplet energy poly(9-vinylcarbazole) (PVK) is used as a host polymer doped with 2-(4-biphenylyl)-5-(4-tert-butyl-phenyl)-1,3,4-oxadiazole (PBD) employed for electron transport. When the doping concentration of Ir(TPABPBI) 2(acac) is up to 4%, devices with a current efficiency of 30.0 cd A-1 corresponding to an EQE of 15% can thus be achieved, along with the Commission de l'Eclairage 1931 chromaticity coordinates of (0.507, 0.486). More importantly, the yellow phosphorescence can be achieved without the generation of excimer emission. Such devices exhibit a very broad and featureless peak at ca. 568 nm with a wide full spectral width at half maximum (FWHM) of 83 nm. These results render Ir(TPABPBI)2(acac) a promising organic phosphor for applications in yellow OLEDs, especially for large-area, highly efficient and cheap yellow PhOLEDs.
- Ouyang, Xinhua,Chen, Dongcheng,Zeng, Shuiming,Zhang, Xingye,Su, Shijian,Ge, Ziyi
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p. 23005 - 23011
(2013/01/15)
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- PHOTOTHERAPY METHODS AND DEVICES COMPRISING EMISSIVE ARYL-HETEROARYL COMPOUNDS
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Disclosed herein are compounds represented by a formula: R1—Ar1—X—Ar2—Ar3-Het, wherein R1, Ar1, X, Ar2, Ar3, and Het are described herein. Compositions and light-emitting devices related thereto are also disclosed.
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Page/Page column 20
(2012/02/01)
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- PHOTOTHERAPY DEVICES AND METHODS COMPRISING SUBSTITUTED CARBAZOLE COMPOUNDS
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Methods and devices related to the treatment of diseases using phototherapy are described. Some embodiments provide an organic light-emitting diode device, such as a light-emitting device for phototherapy, comprising a compound of Formula 1. Methods of treating disease diseases with phototherapy are also described.
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- COMPOUNDS FOR USE IN LIGHT-EMITTING DEVICES
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Compounds including optionally substituted Ring Systems 1-4 may be used as hosts in light-emitting devices.
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- EMISSIVE ARYL-HETEROARYL COMPOUNDS
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Disclosed herein are compounds represented by Formula 1, wherein R1, Ar1, X, Ar2, Ar3, and Het are described herein. Compositions and light-emitting devices related thereto are also disclosed.
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Page/Page column 29-30
(2011/02/24)
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- COMPOUNDS FOR ORGANIC LIGHT EMITTING DIODE EMISSIVE LAYERS
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Disclosed herein are compounds represented by Formula 1. Compositions and light-emitting devices related thereto are also disclosed.
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Page/Page column 22
(2011/04/19)
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- COMPOUNDS FOR ORGANIC LIGHT EMITTING DIODE EMISSIVE LAYERS
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Disclosed herein are compounds represented by a formula: Wherein Ar1, Cb, Ph1, Het1, and A are described herein. Compositions and light-emitting devices related thereto are also disclosed.
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- Charge-transporting polymers based on phenylbenzoimidazole moieties
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A series of novel styrene functionalized monomers with phenylbenzo[d] imidazole units and the corresponding homopolymers are prepared. These side-chain polymers show high glass-transition temperatures that even exceed the corresponding value for the commo
- Debeaux, Marc,Thesen, Manuel W.,Schneidenbach, Daniel,Hopf, Henning,Janietz, Silvia,Krueger, Hartmut,Wedel, Armin,Kowalsky, Wolfgang,Johannes, Hans-Hermann
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experimental part
p. 399 - 408
(2011/10/11)
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- EMISSIVE ARYL-HETEROARYL COMPOUNDS
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Disclosed herein are compounds represented by Formula 1, wherein R1, Ar1, X, Ar2, Ara, and Het are described herein. Compositions and light-emitting devices related thereto are also disclosed.
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- NITROGEN-CONTAINING HETEROCYCLE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT USING THE SAME
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A novel derivative of heterocyclic compound having nitrogen atom with a structure made by bonding special groups to benzimidazole, a material for an organic electroluminescence (EL) device comprising the derivative of heterocyclic compound having nitrogen atom and an organic electroluminescence device comprising at least one organic compound layer containing a light emitting layer sandwiched between a pair of electrodes, wherein the device contains the derivative of heterocyclic compound having nitrogen atom. An organic EL device achieving elevation of luminance and of efficiency in light emission even under low driving voltage is obtainable by an employment of the derivative of heterocyclic compound having nitrogen atom for at least one layer composing organic compound layers of the EL device.
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Page/Page column 32
(2010/02/14)
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