Premium
Anomalous Behaviors of Graphene Transparent Conductors in Graphene–Silicon Heterojunction Solar Cells
Author(s) -
Li Xinming,
Xie Dan,
Park Hyesung,
Zeng Tingying Helen,
Wang Kunlin,
Wei Jinquan,
Zhong Minlin,
Wu Dehai,
Kong Jing,
Zhu Hongwei
Publication year - 2013
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.201300052
Subject(s) - graphene , materials science , heterojunction , optoelectronics , transparency (behavior) , nanotechnology , solar cell , silicon , computer science , computer security
An unexpected behavior of graphene in graphene–silicon heterojunction junction solar cells when it is used as the window electrode is reported. Although the synthesized mono layer graphene exhibits better transparency and conductivity, the multilayer graphene enables much higher solar conversion ability of the solar cell. This surprising observation may be because the multilayer graphene can more effectively suppress charge recombination at the heterojunction interface, which increases the fill factor and enhances the cell performance.