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Hai Yan Nan, Zhen Hua Ni, Jun Wang, Zainab Zafar, Zhi Xiang Shi and Ying Ying Wang The thermal stability of graphene in air investigated by Raman spectroscopy Journal of Raman Spectroscopy 44

Version of Record online: 29 APR 2013 | DOI: 10.1002/jrs.4312

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Thermal stability in air of graphene prepared by different methods is studied by Raman spectroscopy. Bilayer graphene shows much better thermal stability compared with that of single layer graphene. The nature of defects is probed, and it is found that the defects are initially sp3 defects and become vacancy-like defects at higher temperatures. Our results reveal that thermal stability of graphene is strongly dependent on the atmosphere, layer interaction, and intrinsic properties of graphene.

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