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Oxidation and disorder in few-layered graphene induced by the electron-beam irradiation

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8 Author(s)
Xu, Zhiwei ; School of Textiles, Key Laboratory of Advanced Braided Composites, Ministry of Education, Tianjin Polytechnic University, Tianjin 300160, People''s Republic of China ; Chen, Lei ; Li, Jialu ; Wang, Rui
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Structural changes caused by an electron beam with the high irradiation energy of 5 MeV were investigated in few-layered graphene. Both the original and the irradiated few-layered graphene were characterized by x-ray diffraction, Raman spectroscopy, and x-ray photoelectron spectroscopy. It was found that a typical diffraction peak of graphene oxide emerged and this may be attributed to a partial oxidation in few-layered graphene which was induced by the irradiation. In addition, the graphitic structure of few-layered graphene was found to be disordered according to the increased intensity ratio of D to G band.

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Applied Physics Letters  (Volume:98 ,  Issue: 18 )