Premium
Oxygen‐Assisted Charge Transfer Between ZnO Quantum Dots and Graphene
Author(s) -
Guo Wenhao,
Xu Shuigang,
Wu Zefei,
Wang Ning,
Loy M. M. T.,
Du Shengwang
Publication year - 2013
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201202855
Subject(s) - graphene , quantum dot , materials science , photoconductivity , charge (physics) , graphene quantum dot , optoelectronics , oxygen , nanotechnology , molecule , chemistry , physics , organic chemistry , quantum mechanics
Efficient charge transfer between ZnO quantum dots (QDs) and graphene is demonstrated by decorating ZnO QDs on top of graphene, with the assistance of oxygen molecules from the air. The electrical response of the device to UV light is greatly enhanced, and a photoconductive gain of up to 10 7 can be obtained.