… and characterization of thieno [3, 2??b] thiophene??isoindigo??based copolymers as electron donor and hole transport materials for bulk??heterojunction polymer solar …

…, P Cai, Y Lu, NS Choon, J Chen, X Hu…

Index: Xu, Xiaofeng; Cai, Ping; Lu, Yong; Choon, Ng Siu; Chen, Junwu; Hu, Xiao; Ong, Beng S. Journal of Polymer Science, Part A: Polymer Chemistry, 2013 , vol. 51, # 2 p. 424 - 434

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Citation Number: 25

Abstract

Abstract A novel class of thieno [3, 2-b] thiophene (TT) and isoindigo based copolymers were synthesized and evaluated as electron donor and hole transport materials in bulk- heterojunction polymer solar cells (BHJ PSCs). These π-conjugated donor-acceptor polymers were derived from fused TT and isoindigo structures bridged by thiophene units. The band-gaps and the highest occupied molecular orbital (HOMO) levels of the polymers ...