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
Yan M
中科院分区:
材料科学1区
文献类型:
--
作者:
Liu LH;Yan M

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我们提出了一种简单而有效的方法,以全氟苯基叠氮(PFPA)作为偶联剂,在硅片上共价包覆石墨烯。通过在环境条件下的简单热处理将石墨烯片共价连接到PFPA官能化的晶片表面。通过拉曼光谱、光学显微镜和原子力显微镜证实了单层和多层石墨烯的形成。通过X射线光电子能谱和超声处理,证明了石墨烯和PFPA修饰的硅片之间形成了共价键。
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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