期刊
NANO LETTERS
卷 11, 期 8, 页码 3468-3475出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl202002p
关键词
Graphene; charge transfer; field effect transistor; electron transport; mobility; band gap
类别
资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan [20001006]
We investigate the chemisorptions of oxygen molecules on bilayer graphene (BLG) and its electrically modified charge-doping effect using conductivity measurement of the field effect transistor channeled with BLG. We demonstrate that the change of the Fermi level by manipulating the gate electric field significantly affects not only the rate of molecular adsorption but also the carrier-scattering strength of adsorbed molecules. Exploration of the charge transfer kinetics reveals the electrochemical nature of the oxygen adsorption on BLG.
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