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Organic Photovoltaics: Low Band Gap Polymer Solar Cells With Minimal Voltage Losses (Adv. Energy Mater. 18/2016)
Author(s) -
Wang Chuanfei,
Xu Xiaofeng,
Zhang Wei,
Bergqvist Jonas,
Xia Yuxin,
Meng Xiangyi,
Bini Kim,
Ma Wei,
Yartsev Arkady,
Vandewal Koen,
Andersson Mats R.,
Inganäs Olle,
Fahlman Mats,
Wang Ergang
Publication year - 2016
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201670109
Subject(s) - materials science , photovoltaics , optoelectronics , band gap , organic solar cell , polymer solar cell , polymer , photovoltaic system , voltage , solar cell , electrical engineering , composite material , engineering
The large energy loss (>0.6 eV) in polymer solar cells (PSCs) is limiting the improvement of photovoltage. In article number 1600148, Xiaofeng Xu, Wei Ma, Ergang Wang, and co‐workers report that a low band gap (1.49 eV) polymer attains a high photovoltage of 1.0 V with efficiency of 6.7% in PSCs. It represents an impressively low energy loss of 0.49 eV, which challenges the current paradigm and reveals the potential to further enhance the performance of PSCs.