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Graphene Nucleation Preferentially at Oxygen-Rich Cu Sites Rather Than on Pure Cu Surface
Tao Liang1, Guangyu He2, Guowei Huang1
1State Key Laboratory of Silicon Materials Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.
Abstract:
Graphene nucleation at oxygen-rich Cu sites instead of on the commonly assumed pure Cu surface is discovered using high-spatial-resolution scanning Auger electron microscopy, which reveals a strong O signal existing underneath the graphene seeds, along with density functional theory calculations.
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