1089687-06-8Relevant articles and documents
Synthesis and structure study of copolymers from thiadiazole fused indolocarbazole and dithienosilole
Chen, Qiliang,Zhang, Lianjie,Ebrahim, Shaker,Soliman, Moataz,Zhang, Cheng,Qiao, Qiquan
, p. 223 - 229 (2013)
We report synthesis and characterization of two D-A polymers (PSDT-C12 and PSDT-EH) with different side chains. Both polymers are based on alternate 12,13-dioctyl-indolo[2,3-a][1,2,5]thiadiazolo[3,4-c]carbazole (TDZIC) and dithienosilole derivative units in polymer main chain. We used TDZIC to enlarge the 2D conjugated plane of acceptor monomers by fusing benzothiadiazole (BT) unit with an indole unit having alkyl groups. PSDT-C12 exhibited 10 nm redshift compared to PSDT-EH in solid films, while their absorption spectra were almost identical in solutions. Since the backbone and side chains on the indolocarbazole group are the same, the redshift on PSDT-C12 could be resulted from the dodecyl (C12) side chain on the dithienosilole unit and different molecular weight between these two polymers. PSDT-C12 has a larger molecular weight than PSDT-EH. Therefore possibly both side chains and molecular weight contributed to the difference in the absorption spectra in solid films. The straight C-12 side chain has less steric hindrance than the branched EH side chain in solid films. PSDT-C12 has a longer main chain (larger molecule weight) than PSDT-EH, which can favour a more extended main chain interaction. The vibronic peak at 519 nm and shoulder at 563 nm in the PSDT-C12 film further confirmed stronger main chain interaction. Geometry optimization showed that head-tail (HT)-PSDT had a more twisting conjugated backbone with larger dihedral angle between dithienosilole unit and thiadiazole-fused ring compared to head-head/tail-tail (HH/TT)-PSDT.
FUSED RING DERIVATIVE AND ORGANIC SOLAR CELL COMPRISING THE SAME
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, (2017/08/02)
The present invention relates to a condensed cyclic derivative represented by chemical formula 1, and an organic solar cell containing the same. According to an embodiment of the present invention, the condensed cyclic derivative exhibits excellent coating properties by having a hydroxyl group, an alkyl group, an alkoxy group, and a sulfide group as a substituent.COPYRIGHT KIPO 2017
Electronic area comprising rich and lean of electronic area of the organic compounds and their use in the application of electronic (by machine translation)
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Paragraph 0087; 0088, (2016/10/10)
The donor-acceptor strategy based on a semiconductive or conductive organic small molecule, oligomer and polymer, characterized in that the receptor unit core of heavy section 16 group element (Se and Te). Small molecule, oligomer and polymer can have the
Synthesis and photovoltaic properties of A-D-A type non-fullerene acceptors containing isoindigo terminal units
Liu, Xin,Xie, Yuan,Cai, Xinyi,Li, Yunchuan,Wu, Hongbin,Su, Shi-Jian,Cao, Yong
, p. 107566 - 107574 (2016/01/09)
Four solution-processable acceptor-donor-acceptor (A-D-A) structured organic molecules with isoindigo as terminal acceptor units and different aromatic rigid planar cores such as indacenodithiophene (IDT), dithienosilole (DTS), anthracene, and pyrene as d