Side-chain manipulation on accepting units of two-dimensional benzo[1,2-b:4,5-b′]dithiophene polymers for organic photovoltaics
Literature Information
Publication Date
2015-12-28
DOI
10.1039/C5PY01632K
Impact Factor
5.582
Authors
Zhongsheng Xu, Guoping Luo, Jiangsheng Yu, Xinxing Yin, Enwei Zhu, Fujun Zhang, Hongbin Wu, Weihua Tang
View Original
Abstract
Two donor–acceptor alternating polymers of bis(octylthio)thienyl benzo[1,2-b:4,5-b′]dithiophene (BDTTs) and fluorinated benzo[c][1,2,5]thiadiazole (fBT) or 5-dodecylthienyl-6-fluorobenzo[c][1,2,5]thiadiazole were designed for organic photovoltaic applications. The polymers displayed strong absorptions in the range of 300–650 nm and bandgaps of ∼1.60 eV. Bulk-heterojunction solar cells of PBDTTs-fBT and (6,6)-phenyl C71-butyric acid methyl ester (PC71BM) blends exhibited a maximum power conversion efficiency of 6.27%. Experimental results and theoretical modelling were correlated to reveal the impact of substitution on fluorinated BT on the optoelectronic properties of the resulting polymers.
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Source Journal
Polymer Chemistry
CiteScore:
8.6
Self-citation Rate:
7.3%
Articles per Year:
457
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N-[2,6-Di(9-anthryl)-4-oxido-8,9,10,11,12,13,14,15-octahydrodinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yl]-1,1,1-trifluoromethanesulfonamide
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2-(5-Bromo-1H-pyrrolo[2,3-B]pyridin-3-YL)acetic acid
CAS Number:
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Molecular Formula:
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