Thumbnail
Access Restriction
Open

Author Wang, Peng ♦ Lin, Shisheng ♦ Li, Xiaoqiang ♦ Wu, Zhiqian ♦ Zhang, Shengjiao ♦ Xu, Zhijuan ♦ Xu, Sen ♦ Lu, Yanghua ♦ Xu, Wenli ♦ Zheng, Zheyang ♦ Ding, Guqiao
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ SOLAR ENERGY ♦ CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ CONVERSION ♦ EFFECTIVE CHARGE ♦ EFFICIENCY ♦ GRAPHENE ♦ HETEROJUNCTIONS ♦ INDIUM PHOSPHIDES ♦ MOLYBDENUM ♦ MOLYBDENUM SULFIDES ♦ PHOTOLUMINESCENCE ♦ PHOTOVOLTAIC EFFECT ♦ QUANTUM DOTS ♦ SILICON OXIDES ♦ SOLAR CELLS ♦ VAN DER WAALS FORCES
Abstract We demonstrate significantly improved photovoltaic response of monolayer molybdenum disulfide (MoS{sub 2})/indium phosphide (InP) van der Waals heterostructure induced by graphene quantum dots (GQDs). Raman and photoluminescence measurements indicate that effective charge transfer takes place between GQDs and MoS{sub 2}, which results in n-type doping of MoS{sub 2}. The doping effect increases the barrier height at the MoS{sub 2}/InP heterojunction, thus the averaged power conversion efficiency of MoS{sub 2}/InP solar cells is improved from 2.1% to 4.1%. The light induced doping by GQD provides a feasible way for developing more efficient MoS{sub 2} based heterostructure solar cells.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-04-18
Publisher Place United States
Journal Applied Physics Letters
Volume Number 108
Issue Number 16