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High Photovoltaic Performance of a Low‐Bandgap Polymer
Author(s) -
Mühlbacher D.,
Scharber M.,
Morana M.,
Zhu Z.,
Waller D.,
Gaudiana R.,
Brabec C.
Publication year - 2006
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.200600160
Subject(s) - materials science , polymer , photocurrent , band gap , photovoltaic system , optoelectronics , polymer solar cell , conjugated system , engineering physics , nanotechnology , composite material , electrical engineering , engineering
Bulk heterojunction polymer solar cells made from a novel low‐bandgap polymer show the highest photocurrent response so far for this class of materials (see figure). Efficiencies up to 3.2 % are realized, but this conjugated polymer has the intrinsic capability to reach 7 % efficiency because of its material properties. Possible loss mechanisms and improvements are discussed.