Stripe distribution on graphene-coated Cu surface and its effect on oxidation and corrosion resistance of graphene

Journal of Applied Physics - Tập 121 Số 24 - 2017
Yanhui Zhang1,2, Haoran Zhang1,2,3, Zhiying Chen1,2, Xiaoming Ge1,2,3, Yijian Liang1,2,3, Shike Hu1,2,3, Rongxuan Deng1,2,3, Yanping Sui1,2, Guang-hui Yu1,2
1CAS Center for Excellence in Superconducting Electronics 2 , 865 Changning Road, Shanghai 200050, China
2State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences 1 , 865 Changning Road, Shanghai 200050, China
3University of Chinese Academy of Sciences 3 , No.19A Yuquan Road, Beijing 100049, China

Tóm tắt

The morphology and distribution of the stripes caused by Cu surface reconstruction were measured, and the effects of stripes on graphene stability were studied by oxidation and corrosion. The results reveal that the stripes are determined by the crystal orientation of both the Cu surface and graphene, which can both change the stripe distribution, and the stripes can also be influenced by the graphene thickness. The stripes would not induce cracks or destruction to the graphene. The oxidation resistance of graphene can be improved by Cu surface reconstruction. The local nonuniform distortion of the stripe area may induce a bigger strain in the graphene which, in turn, may induce structure instability and result in local stability degeneration in the stripe area.

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Journal of Applied Physics

Tập 121 Số 24

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