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Dithienylthienothiophenebisimide, a Versatile Electron‐Deficient Unit for Semiconducting Polymers
Author(s) -
Saito Masahiko,
Osaka Itaru,
Suda Yosuke,
Yoshida Hiroyuki,
Takimiya Kazuo
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201601373
Subject(s) - materials science , polymer , nanotechnology , electron , unit (ring theory) , polymer science , composite material , quantum mechanics , physics , mathematics education , mathematics
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.