Dithienylthienothiophenebisimide, a Versatile Electron‐Deficient Unit for Semiconducting Polymers. Issue 32 (23rd May 2016)

• Record Type: Journal Article
• Authors: Saito, Masahiko; Osaka, Itaru; Suda, Yosuke; Yoshida, Hiroyuki; Takimiya, Kazuo
• Is Part Of: Advanced materials. Volume 28:Issue 32(2016)
• Page Start: 6921
• Page End: 6925
• Publication Date: 2016-05-23
• Subjects: dithienylthienothiophenebisimide -- semiconducting polymers -- solar cells -- transistors; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201601373
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : A novel electron‐deficient building unit, dithienylthienothiophenebisimide, and its polymers (PTBIs) are reported. Organic photovoltaic (OPV) cells based on PTBIs as p‐type material exhibit 8.0% efficiencies with open‐circuit voltages higher than 1 V. Interestingly, PTBIs also function as n‐type material in OPVs depending on the molecular structure. These polymers also exhibit p‐channel, n‐channel, and ambipolar behaviors in field‐effect transistors.