Simple method for the covalent immobilization of graphene.
Simple method for the covalent immobilization of graphene.
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DOI:
10.1021/nl901669h
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发表时间:
2009-09
期刊:
影响因子:
10.8
通讯作者:
Yan M
中科院分区:
文献类型:
--
作者:
Liu LH;Yan M
We present a simple and efficient method to covalently immobilize graphene on silicon wafers using perfluorophenylazide (PFPA) as the coupling agent. Graphene sheets were covalently attached to PFPA-functionalized wafer surface by a simple heat treatment under ambient conditions. The formation of single and multiple layers of graphene were confirmed by Raman spectroscopy, and optical and atomic force microscopy. Evidence of covalent bond formation between graphene and PFPA decorated silicon wafer was given by X-ray photoelectron spectroscopy and sonication treatment.
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