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Janus Ga 2 SeTe: A Promising Candidate for Highly Efficient Solar Cells
Author(s) -
Wang Jin,
Guo Hui,
Xue Junjun,
Chen Dunjun,
Yang Guofeng,
Liu Bin,
Lu Hai,
Zhang Rong,
Zheng Youdou
Publication year - 2019
Publication title -
solar rrl
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.544
H-Index - 37
ISSN - 2367-198X
DOI - 10.1002/solr.201900321
Subject(s) - janus , photocurrent , materials science , photovoltaics , stacking , optoelectronics , energy conversion efficiency , solar cell , graphene , photovoltaic system , copper indium gallium selenide solar cells , polymer solar cell , organic solar cell , nanotechnology , physics , composite material , engineering , electrical engineering , nuclear magnetic resonance , polymer
The electronic and optical properties of Janus Ga 2 SeTe monolayer are calculated using first‐principles calculations and it is found that it has potential in solar cells. It is found that ultrathin cross‐plane pn‐junctions are obtained by stacking Ga 2 SeTe structures. The graphene‐Ga 2 SeTe‐graphene sandwich‐structured solar cells are configured to explore the device performance of Ga 2 SeTe solar cells. The photocurrent and the power conversion efficiency of the Janus Ga 2 SeTe solar cells are evaluated. The results show that multilayer Janus Ga 2 SeTe solar cells give rise to a photocurrent exceeding that of thin‐film silicon devices, indicating that Ga 2 SeTe is a potential material that could be used in photovoltaics devices.
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