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. 2010 Apr 21;132(15):5330-1.
doi: 10.1021/ja101888b.

A thieno[3,4-c]pyrrole-4,6-dione-based copolymer for efficient solar cells

Yingping Zou  1 , Ahmed Najari, Philippe Berrouard, Serge Beaupré, Badrou Réda Aïch, Ye Tao, Mario Leclerc
Affiliations

A thieno[3,4-c]pyrrole-4,6-dione-based copolymer for efficient solar cells

Yingping Zou et al. J Am Chem Soc. .

Abstract

A new low-band-gap thieno[3,4-c]pyrrole-4,6-dione-based copolymer, PBDTTPD, has been designed and synthesized. PBDTTPD is soluble in chloroform or o-dichlorobenzene upon heating and shows a broad absorption in the visible region. The HOMO and LUMO energy levels were estimated to be at -5.56 and -3.75 eV, respectively. These electrochemical measurements fit well with an optical bandgap of 1.8 eV. When blended with PC(71)BM, this polymer demonstrated a power conversion efficiency of 5.5% in a bulk-heterojunction photovoltaic device having an active area of 1.0 cm(2).

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