A Thieno[3,4-c]pyrrole-4,6-dione-Based Copolymer for Efficient Solar Cells

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• 作者：Yingping Zou ; Ahmed Najari ; Philippe Berrouard ; Serge Beaupr ; Badrou Rda Ach ; Ye Tao ; Mario Leclerc
• 刊名：Journal of the American Chemical Society
• 出版年：2010
• 出版时间：April 21, 2010
• 年：2010
• 卷：132
• 期：15
• 页码：5330-5331
• 全文大小：142K
• 年卷期：v.132,no.15(April 21, 2010)
• ISSN：1520-5126

文摘

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 PC₇₁BM, this polymer demonstrated a power conversion efficiency of 5.5% in a bulk-heterojunction photovoltaic device having an active area of 1.0 cm².