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

Yingping Zou; Ahmed Najari; Philippe Berrouard; Serge Beaupré; Badrou Réda Aïch; Ye Tao; Mario Leclerc

doi:10.1021/ja101888b

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

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

Authors

Yingping Zou¹, Ahmed Najari, Philippe Berrouard, Serge Beaupré, Badrou Réda Aïch, Ye Tao, Mario Leclerc

Affiliation

¹ Département de Chimie, Université Laval, Quebec City, QC, Canada G1V 0A6.

PMID: 20349958
DOI: 10.1021/ja101888b

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).