Optical Spectroscopy Investigation of the Structural and Electrical Evolution of Controllably Oxidized Graphene by a Solution Method
Optical Spectroscopy Investigation of the Structural and Electrical Evolution of Controllably Oxidized Graphene by a Solution Method
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通过溶液法研究可控氧化石墨烯的结构和电学演化
DOI：
10.1021/jp212184n
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发表时间：
2012-05
影响因子：
3.7
通讯作者：
Qiu, Xiaohui
中科院分区：
文献类型：
--
作者：
Wang, Shengnan;Wang, Rui;Liu, Xinfeng;Wang, Xiaowei;Zhang, Dongdong;Guo, Yanjun;Qiu, Xiaohui
A precisely controlled chemical modification of exfoliated graphene on a substrate was achieved by solution-phase oxidation. The structural and electrical evolution of graphene induced by oxygen-related defects was investigated using micro-Raman and photoluminescence spectroscopy. The sp2-hybrid carbon network in monolayer graphene was found to gradually decrease with increasing degree of oxidation. The size of the graphene quantum dots was finally reduced to about 1 nm, which exhibited an energy band gap of 2 eV. The double-layer graphene showed a symmetry breaking induced by the defects. The process of solution modification may provide a facile method to tailor the electrical properties of graphene on a chip for constructing carbon-based nanoelectronics.
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影响因子：
38.3
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Das, A.;Pisana, S.;Sood, A. K.
通讯作者：
Sood, A. K.
影响因子：
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Jun Yan;E. Henriksen;P. Kim;A. Pinczuk
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Jun Yan;E. Henriksen;P. Kim;A. Pinczuk
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通讯作者：
Rotenberg, Eli
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通讯作者：
Robertson, J
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29.4
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Zettl, Alex