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Nitrogen‐Doped Graphene Foams as Metal‐Free Counter Electrodes in High‐Performance Dye‐Sensitized Solar Cells
Author(s) -
Xue Yuhua,
Liu Jun,
Chen Hao,
Wang Ruigang,
Li Dingqiang,
Qu Jia,
Dai Liming
Publication year - 2012
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.201207277
Subject(s) - dye sensitized solar cell , auxiliary electrode , graphene , materials science , electrode , doping , nitrogen , metal , energy conversion efficiency , carbon fibers , nanotechnology , chemical engineering , optoelectronics , chemistry , composite material , composite number , metallurgy , organic chemistry , engineering , electrolyte
Efficient without metal : Nitrogen‐doped graphene foams with a nitrogen content up to 7.6 % have been prepared and used as counter electrodes in dye‐sensitized solar cells (DSSCs; see picture). The doping with nitrogen leads to a power conversion efficiency of 7.07 %. This is one of the highest values reported for DSSCs with carbon‐based metal‐free counter electrodes.