1153-85-1Relevant articles and documents
Pyridyl Pyrrolide Boron Complexes: The Facile Generation of Thermally Activated Delayed Fluorescence and Preparation of Organic Light-Emitting Diodes
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
, p. 3017 - 3021 (2016)
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)
Novel bifluorene based conjugated systems: Synthesis and properties
Grisorio, Roberto,Dell'Aquila, Antonio,Romanazzi, Giuseppe,Suranna, Gian Paolo,Mastrorilli, Piero,Cosma, Pynalisa,Acierno, Domenico,Amendola, Eugenio,Ciccarella, Giuseppe,Nobile, Cosimo Francesco
, p. 627 - 634 (2006)
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
Efficient thermally activated delayed fluorescence of functional phenylpyridinato boron complexes and high performance organic light-emitting diodes
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
, p. 1452 - 1462 (2017)
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.
Imidazolyl-Phenylcarbazole-Based Host Materials and Their Use for Co-host Designs in Phosphorescent OLEDs
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
, (2021/12/06)
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
Method for synthesizing high-purity 3-bromine-N-phenylcarbazole
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Paragraph 0049-0084, (2021/01/24)
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
Amine-based compound and organic light emitting diode comprising the same
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Paragraph 0223; 0229-0230, (2021/03/16)
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.
Organic compound, and organic electroluminescent device and electronic device using the same
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Paragraph 0129-0131; 0132; 0135, (2021/11/10)
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.
COMPOSITION, ORGANIC OPTOELECTRONIC DEVICE, AND DISPLAY DEVICE
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Paragraph 0163; 0168-0169; 0280-0282, (2021/03/13)
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.
Thiophene ethylene malononitrile structural compound and preparation method thereof
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Paragraph 0069-0071, (2021/04/28)
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
Preparation method of 3 - bromo - N - phenyl carbazole
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Paragraph 0024; 0032-0038; 0039; 0047-0053, (2021/10/11)
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.