57102-42-8Relevant articles and documents
Design, synthesis and photovoltaic properties of a series of new acceptor-pended conjugated polymers
Wu, Zhihong,Zhu, Yongxiang,Li, Wei,Huang, Yunping,Chen, Junwu,Duan, Chunhui,Huang, Fei,Cao, Yong
, p. 1583 - 1592 (2016)
A series of novel acceptor-pended conjugated polymers featuring a newly developed carbazole-derived unit are designed and synthesized. The relationships between chemical structure and optoelectronic properties of the polymers are systematically investigated. The control of UV-Vis absorption spectra and energy levels in resulting polymers are achieved by introducing suitable pended acceptor units. The photovoltaic properties of the resulting polymers are evaluated by blending the polymers with (6,6)-phenyl-C71-butyric acid methyl ester. The resulting solar cells exhibit moderate performances with high open-circuit voltage. Charge transport properties and morphology were investigated to understand the performance of corresponding solar cells.
A facile approach to prepare a microporous polycarbazole P-tetra(4-(: N -carbazolyl)phenyl)silane network with high CO2 storage and separation properties
Jiang, Fei,Sun, Jianling,Yang, Renqiang,Qiao, Shanlin,An, Zengjian,Huang, Jianqing,Mao, Haifang,Chen, Guie,Ren, Yujie
, p. 4969 - 4973 (2016)
A facile approach is designed to prepare a novel conjugated polycarbazole microporous P-tetra (4-(N-carbazolyl)phenyl)silane (P-TCzPhSi) network with a tetra-substituted silicon center by FeCl3 oxidative coupling polymerization. The adsorption isotherm of N2 reveals that the polymer features a high Brunauer-Emmett-Teller (BET) specific surface area of up to 1856 m2 g-1. The polycarbazole network exhibits good hydrogen (2.5 wt%, 77 K, 1.1 bar), carbon dioxide (23.5 wt%, 273 K, 1.1 bar) and methane (2.5 wt%, 273 K, 1.1 bar) uptake ability.
Light blue and green thermally activated delayed fluorescence from 10H-phenoxaborin-derivatives and their application to organic light-emitting diodes
Kitamoto, Yuichi,Namikawa, Taketo,Ikemizu, Dai,Miyata, Yasuo,Suzuki, Takatsugu,Kita, Hiroshi,Sato, Tetsuo,Oi, Shuichi
, p. 9122 - 9130 (2015)
New luminescent compounds consisting of 10H-phenoxaboryl groups as electron-accepting units and carbazole (9), 9,9-dimethylacridane (10), or phenoxazine (11) as an electron-donating unit have been synthesized. Compounds 10 and 11 showed thermally activated delayed fluorescence (TADF) with light blue and green emissions, respectively, with very high PL quantum yields (PLQYs), however, compound 9 exhibited only a prompt emission and no delayed component. Photoluminescence studies and quantum chemical calculation based on density functional theory (DFT) and time-dependent density functional theory (TD-DFT) revealed that in comparison with compound 9, the HOMO and LUMO for compounds 10 and 11 are well separated, resulting in lowering of ΔEST and effective reverse intersystem crossing (RISC) between a lowest triplet excited state (T1) and a lowest singlet excited state (S1). Organic light-emitting diodes (OLEDs) using compounds 10 and 11 exhibited light blue and green emissions with very good maximum ηext of 15.1% and 22.1%, respectively.
Synthesis and photoluminescent properties of series ternary lanthanide (Eu(III), Sm(III), Nd(III), Er(III), Yb(III)) complexes containing 4,4,4-trifluoro-1-(2-naphthyl)-1,3-butanedionate and carbazole-functionalized ligand
Wu, Jing,Li, Hong-Yan,Xu, Qiu-Lei,Zhu, Yu-Cheng,Tao, Yun-Mei,Li, Huan-Rong,Zheng, You-Xuan,Zuo, Jing-Lin,You, Xiao-Zeng
, p. 2394 - 2400 (2010)
A series of new ternary lanthanide complexes Ln(TFNB)3L (where Ln = Eu, Sm, Nd, Er, Yb, TFNB = 4,4,4-trifluoro-1-(2-naphthyl)-1,3- butanedionate, L = 1-(4-carbazolylphenyl)-2-pyridinyl benzimidazole) have been synthesised. The photoluminescence properties and TGA of them are described in detail. The trifluorinated ligand TFNB displays excellent antenna effect to sensitize the Ln(III) ions to emit characteristic spectra. The carbazole-containing ligand L is testified to be an outstanding synergistic ligand. The luminescence properties investigated and the quantum efficiency measured in dichloromethane solution of Eu(TFNB)3L and Sm(TFNB) 3L show that the carbazole moiety is good at absorbing energy to sensitize the metal-centered emitting states and can make the complexes more rigid, provide efficient shielding of the Ln(III) core towards external quenching compared with the reference complexes of Eu(TFNB)3(Pybm) and Sm(TFNB)3(Pybm) (Pybm = 2-(2-pyridine)-benzimidazole) which have no carbazole unit. The quantum efficiency of Eu(TFNB)3L in air-equilibrated CH2Cl2 solution is calculated to be 14.8% by using air-equilibrated aqueous [Ru(bpy)3]2+· 2Cl- solution as reference sample (Φstd = 2.8%).
Carbazole- And thiophene-containing conjugated microporous polymers with different planarity for enhanced photocatalytic hydrogen evolution
Lee, Tsung-Lin,Elewa, Ahmed M.,Kotp, Mohammed G.,Chou, Ho-Hsiu,El-Mahdy, Ahmed F. M.
supporting information, p. 11968 - 11971 (2021/11/30)
We report the synthesis of two carbazole-thiophene-based conjugated microporous polymers (Cz-3Th and Cz-4Th CMPs) with different degrees of planarity for photocatalytic hydrogen evolution from water. Depending upon the building linker's planarity, we found that the porous structure, hydrogen-evolution rate, and photocatalytic stability of the resultant CMPs varied.
Combined experimental and density functional theory studies on novel 9-(4/3/2-cyanophenyl)-9H-carbazole-3-carbonitrile compounds for organic electronics
Patil, Bhausaheb,Lade, Jatin,Sathe, Pratima,Tripathi, Anuj,Pownthurai,Chetti, Prabhakar,Jadhav, Yogesh,Chaskar, Atul
, (2021/04/05)
We have synthesized a series of novel hybrid molecules 9-(2-cyanophenyl)-9H-carbazole-3-carbonitrile (o-CNCbzCN), 9-(3-cyanophenyl)-9H-carbazole-3-carbonitrile (m-CNCbzCN) and 9-(4-cyanophenyl)-9H-carbazole-3-carbonitrile (p-CNCbzCN), comprising electron-donating carbazole and electron-accepting nitrile groups. Three positional isomers were synthesized with a view to tune photophysical and electrochemical properties of the hybrids. The photophysical study displayed absorption maxima in the range of 281–340 nm and 277–298 nm whereas emission maxima in the range of 349–366 nm and 366–369 nm in toluene and dimethylformamide (DMF), respectively. These molecules demonstrated suitable frontier molecular orbital (FMO) energy levels and ensure good thermal and morphological stability. Among these synthesized molecules, m-CNCbzCN showed very high decomposition temperature (Td = 341°C) whereas p-CNCbzCN exhibited good glass transition (Tg = 182°C) as well as melting temperature (Tm = 236°C), indicating its significant stability and potential utility as a bipolar host material for efficient phosphorescent organic light-emitting diodes (PhOLEDs).
