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Single‐Junction Organic Solar Cells Based on a Novel Wide‐Bandgap Polymer with Efficiency of 9.7%
Author(s) -
Huo Lijun,
Liu Tao,
Sun Xiaobo,
Cai Yunhao,
Heeger Alan J.,
Sun Yanming
Publication year - 2015
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.201500647
Subject(s) - materials science , organic solar cell , photovoltaic system , band gap , tandem , engineering physics , polymer , nanotechnology , optoelectronics , electrical engineering , engineering , composite material
A novel wide‐bandgap copolymer (PDBT‐T1) is developed and applied in organic solar cells, which yield a high efficiency of 9.74% and a high fill factor of 75%. The high photovoltaic performance is due to efficient photogenerated exciton dissociation and charge collection in PDBT‐T1‐based solar cells. The results show that PDBT‐T1 is an outstanding candidate as a wide‐bandgap material for tandem (or multi‐junction) organic solar cells.