Efficient all-polymer solar cells based on blend of tris(thienylenevinylene)-substituted polythiophene and poly[perylene diimide-alt-bis(dithienothiophene)]

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Tan, Zhan'ao
Zhou, Erjun
Zhan, Xiaowei
Wang, Xiang
Li, Yongfang
Barlow, Stephen
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http://hdl.handle.net/1853/45545
Abstract
A narrow band-gap alternating copolymer of perylene diimide and bis(dithienothiophene) (2) and a polythiophene derivative substituted by a tris(thienylenevinylene) conjugated side chain (4) are used as acceptor and donor, respectively, in all-polymer solar cells (SCs). The optimized device based on the blend of 4 and 2 in the ratio 3:1 (w/w) gives a short circuit current (Jsc) of 5.02 mA cm⁻²and a power conversion efficiency of 1.48%, under simulated AM 1.5 illumination at 100 mW cm⁻¹. These values are among the highest values reported for all-polymer SCs
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2008-08-18
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