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Thieno[3,4‐ c ]pyrrole‐4,6‐dione‐3,4‐difluorothiophene Polymer Acceptors for Efficient All‐Polymer Bulk Heterojunction Solar Cells
Author(s) -
Liu Shengjian,
Kan Zhipeng,
Thomas Simil,
Cruciani Federico,
Brédas JeanLuc,
Beaujuge Pierre M.
Publication year - 2016
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201604307
Subject(s) - polymer solar cell , polymer , pyrrole , materials science , thiophene , acceptor , fullerene , band gap , photochemistry , polymer chemistry , chemical engineering , optoelectronics , chemistry , organic chemistry , physics , composite material , engineering , condensed matter physics
Branched‐alkyl‐substituted poly(thieno[3,4‐ c ]pyrrole‐4,6‐dione‐ alt ‐3,4‐difluorothiophene) (PTPD[2F]T) can be used as a polymer acceptor in bulk heterojunction (BHJ) solar cells with a low‐band‐gap polymer donor (PCE10) commonly used with fullerenes. The “all‐polymer” BHJ devices made with PTPD[2F]T achieve efficiencies of up to 4.4 %. While, to date, most efficient polymer acceptors are based on perylenediimide or naphthalenediimide motifs, our study of PTPD[2F]T polymers shows that linear, all‐thiophene systems with adequately substituted main chains can also be conducive to efficient BHJ solar cells with polymer donors.