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Title: The effect of layer number and substrate on the stability of graphene under MeV proton beam irradiation
Authors: Mathew, S. 
Chan, T.K. 
Zhan, D.
Gopinadhan, K. 
Barman, A.-R.
Breese, M.B.H. 
Dhar, S. 
Shen, Z.X.
Venkatesan, T. 
Thong, J.T.L. 
Issue Date: Apr-2011
Citation: Mathew, S., Chan, T.K., Zhan, D., Gopinadhan, K., Barman, A.-R., Breese, M.B.H., Dhar, S., Shen, Z.X., Venkatesan, T., Thong, J.T.L. (2011-04). The effect of layer number and substrate on the stability of graphene under MeV proton beam irradiation. Carbon 49 (5) : 1720-1726. ScholarBank@NUS Repository.
Abstract: The use of graphene electronics in space will depend on the radiation hardness of graphene. The damage threshold of graphene samples, subjected to 2 MeV H+ irradiation, was found to increase with layer number and also when the graphene layer was supported by a substrate. The thermal properties of graphene as a function of the number of layers or as influenced by the substrate argue against a thermal model for the production of damage by the ion beam. We propose a model of intense electronically-stimulated surface desorption of the atoms as the most likely process for this damage mechanism. © 2010 Elsevier Ltd. All rights reserved.
Source Title: Carbon
ISSN: 00086223
DOI: 10.1016/j.carbon.2010.12.057
Appears in Collections:Staff Publications

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