- Synthesis and photophysical properties of new through-space conjugated luminogens constructed by folded tetraphenylethene
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Through-space conjugation refers to a unique non-covalent electronic coupling interaction typically occurring between two face-to-face parallel aromatic units, which has shown great potential in constructing novel functional materials capable of multidimensional carrier and energy transportation. However, well-studied through-space conjugation systems are quite rare. In this work, a series of tailored through-space conjugated luminogens are readily constructed from the folded tetraphenylethene (TPE) core and common functional groups like fluorene, carbazole, imidazole and dimesitylborane. Systematic studies on their photophysical properties were conducted, and a deep insight into the structure-property relationship is gained. The new molecules show aggregation-enhanced emission (AEE) characteristics with high fluorescence quantum efficiencies of up to 54% in films. Through the binding experiments of fluoride ions with boron atoms, the impacts of through-space conjugation on the photophysical properties of the luminogens are carefully studied. All these results undoubtedly provide important clues to the rational design of efficient through-space conjugated materials with specific functions.
- He, Bairong,Luo, Wenwen,Hu, Shimin,Chen, Bin,Zhen, Shijie,Nie, Han,Zhao, Zujin,Tang, Ben Zhong
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Read Online
- Synthesis and characterization of a green-light-emitting (pbi-Br)2Ir (acac) metal complex for OLEDs
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We designed and synthesized a 2-(4-bromophenyl)-1-phenyl-1H-benzimidazole (pbi-Br) ligand, which was then employed to create an innovative phosphorescent cyclometallated iridium(III) (pbi-Br)2Ir(acac) metal complex with acetyl acetone as an ancillary ligand using the Suzuki coupling reaction. The complex was then characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectra and thermogravimetric analysis (TGA)/differential thermal analysis (DTA) for structural and thermal analysis, respectively. XRD confirmed its amorphous nature and the FTIR spectrum revealed the molecular structure confirmation of the metal complex. The TGA/DTA curve disclosed its thermal stability up to 310°C. Ultraviolet (UV)–vis absorption and photoluminescence (PL) spectra were measured to explore the photo-physical properties of the (pbi-Br)2Ir(acac) complex in basic and acidic media respectively. With the variation in solvent from acidic to basic media, optical absorption peaks blue shifted with variation in optical densities. These results facilitated the calculation of various photo-physical parameters. When excited at 379?nm in the solid state, the synthesized complex gave out a green light emission, peaking at λemi?=?552?nm. Staggering differences in optical density were observed in the PL spectra of the solvated complex. A Stokes’ shift of 7140.45?cm?1 and 7364.94?cm?1 was observed when the complex was solvated in acetic acid and chloroform, respectively. Hence the synthesized iridium metal complex can be considered as promising green emissive material for optoelectronic applications.
- Khotele, Neha,Kalyani, N. Thejo,Dhoble
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Read Online
- 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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Read Online
- 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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p. 3642 - 3651
(2021/03/26)
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- Four new bipolar Indolo[3,2-b]carbazole derivatives for blue OLEDs
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Four new indolo [3,2-b]carbazole derivatives containing imidazole-derived moieties, 2,8-bis(4-(9-(4-(tert-butyl)phenyl)-9H-pyreno [4,5-d]imidazol-10-yl)phenyl)-5,11-bis(2-ethylhexyl)-5,11-dihydroindolo [3,2-b]carbazole (Py-ICZ-Py), 2,8-bis(4-(1-(4-(tert-b
- Li, Yanmei,Ma, Hailin,Qian, Long,Su, Wenming,Wang, Ruidong,Yang, Hongyan,Yu, Shupei,Yu, Tianzhi,Zhao, Yuling
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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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- Electron transporting and hole blocking organic material and application thereof in thin-film light-emitting diode
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The invention provides an electron transporting and hole blocking material with an A-D-A link structure as a core. The material is applied to a thin-film semiconductor light-emitting diode, for example, an organic light-emitting diode and a quantum dot thin-film light-emitting diode; and the molecule of the material takes bipolar carbazole and a derivative group thereof as electron donating centers, so a relatively high triplet state energy level can be maintained to ensure exciton blocking capability.
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Paragraph 0005
(2020/11/02)
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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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- 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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- Bipolar compounds based on 1,3,4-thiadiazole, and preparation method and application thereof
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The invention provides novel bipolar compounds which are formed by using 1,3,4-thiadiazole with strong electron withdrawing ability as a core group and connecting the position 2 and the position 5 of1,3,4-thiadiazole to groups having electron donor/acceptor abilities respectively with arylene groups as Pi bridges. The parent nucleus structure, i.e., 1,3,4-thiadiazole, has symmetrical strong electron withdrawing ability, so the compounds extending via the Pi bridges present ordered closely-packed structures; bipolar benzoheterocycles endow the compounds with certain rigidity, so low optical loss caused by light near a negative pole can be realized, and optical extraction efficiency is improved; so the compounds are an ideal light-emitting layer material. Meanwhile, since the compounds haveparent nucleuses with strong electron withdrawing ability and the donor/acceptor groups, the compounds are allowed to have powerful charge balancing ability; conjugation broken by the Pi bridges effectively improves the problem of band gap reduction caused by intramolecular charge transfer of electron-donating and electron-withdrawing groups and endows a device with lower driving voltage, higherdevice efficiency and lower efficiency drop; so the compounds are also an excellent host material for luminescent layers.
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- Organic compound containing pyridine and application thereof in OLED device
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The invention relates to an organic compound containing pyridine and an application thereof in an OLED device. The structure of the compound of the invention is as shown in the general formula (1): the compound has higher glass transition temperature and
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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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- 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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- An organic semiconductor body material and its organic light-emitting diode application
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The invention relates to an organic light emitting diode (OLED). The OLED is characterized by consisting of a negative pole, a positive pole and an organic semiconductor layer arranged between the negative pole and the positive pole, wherein the organic semiconductor layer comprises an organic light-emitting layer which is prepared from an organic semiconductor main material, and the main material has a general formula as shown in a formula I described in the description; main material is characterized in that an aromatic hybrid fusion ring is connected with a nitrogen atom of a developed quinary aromatic heterocycte indeno-carbazole, so that the charge balance injection and luminescent stability are better improved, and high-stability, high-efficiency and long-life luminescence property can be obtained.
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Paragraph 0075; 0102; 0103
(2018/11/22)
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- Organic compound based on pyridine and benzimidazole and application of organic compound
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The invention relates to an organic compound taking pyridine and benzimidazole as a core and an application of the organic compound on an OLED (organic light emitting diode) device. The compound has relatively high glass state temperature and molecular heat stability, low absorption and high refractive index in the field of visible light, and can effectively improve light extraction efficiency of the OLED device after the compound is applied to a CPL (circular-polarizing filter) layer of the OLED device. The compound further has an HOMO (highest occupied molecular orbital) energy level and high electron mobility, and can serve as a hole obstruction/electronic transmission layer material of the OLED device and effectively prevent a hole or energy from being transmitted to one side of an electronic layer from a light emitting layer, so that the combination efficiency of the hole and an electron on the light emitting layer is improved; and the light emitting efficiency and a service life of the OLED device are improved and prolonged.
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- Organic compound based on triazine and benzimidazole and application thereof to organic light-emitting diode (OLED) device
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The invention relates to an organic compound based on triazine and benzimidazole and application thereof to an organic light-emitting diode (OLED) device. The compound disclosed by the invention has a high vitrification temperature and high molecular thermal stability; the compound has a low absorption rate and a high refraction rate in the field of visible light, and can be applied to a CPL (Circular-Polarizing Filter) layer of the OLED device to effectively increase the light output efficiency of the OLED device; the compound also has a deep HOMO (Highest Occupied Molecular Orbital) energy level and a high electron mobility, can be taken as a hole-blocking/electron transport layer material of the OLED device, and can effectively block holes or prevent energy from being transported from a light-emitting layer to one side of an electron layer, so that the compound efficiency of the holes and electrons on the light-emitting layer is increased, and the light-emitting efficiency and the service life of the OLED device are increased and prolonged.
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- Organic compound based on pyridine and benzimidazole and application thereof in organic light emitting diodes (OLED)
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The invention relates to an organic compound taking pyridine and benzimidazole as a core and application thereof in organic light emitting diode (OLED) devices. The compound disclosed by the invention has higher glass transition temperature and molecular heat stability; the compound has low absorption and high refractive index in the field of visible light; after being applied to CPL layers of the OLED devices, the compound can effectively improve light extraction efficiency of the OLED devices. The compound disclosed by the invention further has a deep HOMO energy level and high electronic mobility, can serve as a cavity blocking/electron transfer layer material of the OLED devices and can effectively prevent cavities or energy from being transmitted to one side of an electronic layer from a luminescent layer; thus, composition efficiency of the cavities and the electrons in the luminescent layer is improved, and further luminous efficiency and service life of the OLED devices are improved.
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- Achieving High Performances of Nondoped OLEDs Using Carbazole and Diphenylphosphoryl-Functionalized Ir(III) Complexes as Active Components
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Nondoped electroluminescent devices offer advantages over their doped counterparts such as good reproducibility, reduced phase separation between host and guest materials, and potential of lower-cost devices. However, low luminance efficiencies and signif
- Mao, Hui-Ting,Zang, Chun-Xiu,Shan, Guo-Gang,Sun, Hai-Zhu,Xie, Wen-Fa,Su, Zhong-Min
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supporting information
p. 9979 - 9987
(2017/08/26)
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- 1,3,6,8-Tetrasubstituted pyrenyl material with bipolar D-pi-A configuration, and preparation method and application thereof
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The invention discloses a 1,3,6,8-tetraisubstituted pyrenyl material with a bipolar D-pi-A configuration. The 1,3,6,8-tetraisubstituted pyrenyl material with a bipolar D-pi-A configuration is a high-efficiency pyrenyl material synthesized through introduc
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Paragraph 0083; 0085; 0087; 0088
(2017/09/01)
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- Bipolar-configuration pyrenyl blue-light emitting material containing benzimidazole unit, preparation method and application
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The invention discloses a bipolar-configuration pyrenyl blue-light emitting material containing a benzimidazole unit, a preparation method and an application, and belongs to the field of organic electroluminescent materials and devices. The efficient pyre
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Paragraph 0038; 0046; 0047; 0048
(2017/07/20)
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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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- 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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- 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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- 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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- 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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- NEW COMPOUNDS AND ORGANIC ELECTRONIC DEVICE USING THE SAME
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PURPOSE: A novel compound and an organic electronic device using the same are provided to enhance the efficiency, driving voltage, and lifetime of an organic electronic device. CONSTITUTION: A novel compound is denoted by chemical formula 1. In chemical formula 1, L1 and L2 are individually a directly bonded or substituted or non-substituted C5-C30 arylene group.
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Paragraph 0115-0118
(2017/01/09)
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- COMPOUND, ORGANIC OPTOELECTRONIC DEVICE AND DISPLAY DEVICE
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The present invention relates to a compound, an organic photoelectronic device comprising the same, and a display device comprising the organic photoelectronic device. The compound is represented by chemical formula 1. In the chemical formula 1, R1 to R5, X1, and X2 is the same as defined in the specification.COPYRIGHT KIPO 2015
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Paragraph 0218; 0242
(2016/10/09)
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- Phototherapy Devices and Methods Comprising Optionally Substituted Quinquiesphenyl 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 Ring System 1, Ring System 2, Ring System 3, Ring System 4 or Ring System 5. Methods of treating disease with phototherapy are also described.
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Paragraph 0102; 0105
(2015/03/31)
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- Bipolar hosts for light emitting devices
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Some embodiments provide a compound represented by Formula 1: wherein R1, R2, R3, R4, R5, R6, R7 and R8 are independently H, C1-C3 alkyl, or C1-3 perfluoroalkyl; HT is optionally substituted carbazoyl, optionally substituted phenylcarbazolyl, optionally substituted (phenylcarbazolyl)phenyl, optionally substituted phenylnaphthylamine, or optionally substituted diphenylamine; and ET optionally substituted benzimidazol-2-yl, optionally substituted benzothiazol-2-yl, optionally substituted benzoxazol-2-yl, optionally substituted 3,3′-bipyridin-5-yl, optionally substituted quinolin-8-yl, optionally substituted quinolin-5-yl, or optionally substituted quinoxalin-5-yl. Other embodiments provide an organic light-emitting diode device comprising a compound of Formula 1.
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Page/Page column 43
(2015/09/22)
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- NEW NITROGEN-CONTAINING HETEROCYCLIC COMPOUNDS AND ORGANIC ELECTRONIC DEVICE USING THE SAME
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The present invention refers to novel nitrogenous heterocyclic and optical material using it organic electronic device with high. The present invention according to organic electronic devices efficiency, excellent characteristics such as voltage and life blades, presenting a. (by machine translation)
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Paragraph 0264-0267
(2016/10/07)
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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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- 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 182; 183; 184
(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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- Efficient deep-blue emitters based on triphenylamine-linked benzimidazole derivatives for nondoped fluorescent organic light-emitting diodes
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Two triphenylamine-substituted benzimidazole derivatives were synthesized for use as efficient deep-blue emitters in nondoped fluorescent organic light-emitting diodes (FLOLEDs). The molecular design of 40,40 0-(1H-benzo[d]imidazole-1,2-diyl)bis(N,N-diphenylbiphenyl-4-amine) (T2B) to limit the molecular packing density enabled T2B-based devices to suppress the exciton quenching by a bulky three-dimensional structure. Nondoped FLOLEDs fabricated using T2B as a blue emitter exhibited an external quantum efficiency of 4.67% with color coordinates of (0.15, 0.08).
- Jeong, Seongjin,Kim, Myoung-Ki,Kim, Sung Hyun,Hong, Jong-In
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p. 2497 - 2504
(2013/10/22)
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- BENZOIMIDAZOLE DERIVATIVES 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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(2012/07/13)
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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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- 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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- 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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- Conventional and microwave-assisted synthesis of benzimidazole derivatives and their in vitro inhibition of human cyclooxygenase
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A large series of 1,2-diaryl-benzimidazole and 2-aryl-1H-benzimidazole derivatives were synthesized with slight differences using both microwave irradiation and conventional heating methods. Usually higher yields and time reactions reduction were obtained
- Secci, Daniela,Bolasco, Adriana,D'Ascenzio, Melissa,Della Sala, Flavio,Yanez, Matilde,Carradori, Simone
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p. 1187 - 1195
(2013/01/15)
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- MATERIALS FOR ORGANIC ELECTROLUMINESCENT DEVICES
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The present invention relates to coordination compounds which are used in an electron-transport layer in electronic devices, to ligands, and to the use thereof for the preparation of metal complexes, to a layer, and to an electronic device which comprise
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Page/Page column 37
(2012/12/13)
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- POLYPHENYLENE HOST COMPOUNDS
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Polyphenylene compounds such as compounds represented by Formula I may be used in electronic devices such as organic light-emitting devices. For example, the compounds may be used as host materials in a light-emitting layer.
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Page/Page column 18
(2011/10/19)
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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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- 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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- 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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- 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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- NOVEL NITROGEN-CONTAINING HETEROCYCLIC COMPOUND AND ORGANIC ELECTRONIC DEVICE USING THE SAME
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The present invention provides a novel nitrogen-containing heterocyclic derivative and an organic electronic device using the same. The organic electronic device according to the present invention has excellent properties in terms of efficiency, driving voltage, and a life span.
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Page/Page column 70
(2011/05/05)
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- A new benzimidazole/carbazole hybrid bipolar material for highly efficient deep-blue electrofluorescence, yellow-green electrophosphorescence, and two-color-based white OLEDs
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The bipolar molecule CPhBzIm exhibits an excellent solid state photoluminescence quantum yield (ΦPL = 69%), triplet energy (ET = 2.48 eV), and bipolar charge transport ability (μh ≈ μe ≈ 10-6-10-
- Hung, Wen-Yi,Chi, Liang-Chen,Chen, Wei-Jiun,Chen, You-Ming,Chou, Shu-Hua,Wong, Ken-Tsung
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scheme or table
p. 10113 - 10119
(2011/07/29)
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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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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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