期刊
CARBON
卷 76, 期 -, 页码 212-219出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2014.04.070
关键词
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资金
- Singapore MOE Grants [R143-000-505-112, R143-000-530-112, R143-000-542-112, R143-000-559-112]
- HZNU research foundation for returned scholar
Mildly oxidized graphene has been prepared by O-2 plasma treatments. Compared to pristine graphene, the mildly O-2 plasma treated graphene can significantly enhance the Raman peaks intensities of adsorbed Rhodamine B molecules. This effect is attributed to the strong local electric field on the adsorbed molecules induced by the oxygenated species on graphene after O-2 plasma treatments. The downshift of the Fermi level of graphene has also been demonstrated to be responsible for this chemical enhancement. (C) 2014 Elsevier Ltd. All rights reserved.
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