论文部分内容阅读
Graphene is the two-dimensional atomic crystal made of sp2-hybridized carbon atoms withextraordinary electronic and optical properties [1],whichhas motivated the rapid development of various methods for the preparation of high-quality graphene.Chemical vapor deposition(CVD)on transitional metals,especially on copper,has been considered as one of the most promising techniques for production of graphene with high quality and in large scale.