期刊
ELECTROCHIMICA ACTA
卷 137, 期 -, 页码 175-182出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2014.05.142
关键词
Dye-sensitized solar cell; Counter electrode; Self-assembly; Multilayer; Complex
In order to enhance the charge-transfer ability, positively charged polyaniline-graphene complexes are synthesized by a reflux method and assembled into multilayers with negatively charged graphene oxide. The counter electrodes from polyaniline-graphene/graphene oxide (PANi-G/GO)(n) (n represents the bilayer number) multilayers show superior electrocatalytic activity and electrical conductivity because of enormous interface. An impressive power conversion efficiency of 7.88% is recorded from the DSSC employing PANi-G/GO multilayer counter electrode. The multilayer counter electrodes and the resultant DSSCs are thoroughly assessed by electrochemical characterizations. The results are far from optimal but the preliminary photovoltaic performances make the strategy promising in efficient DSSC applications. (C) 2014 Elsevier Ltd. All rights reserved.
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