• 文献标题:   UV/O-3 Generated Graphene Nanomesh: Formation Mechanism, Properties, and FET Studies
  • 文献类型:   Article
  • 作  者:   YANG DP, WANG XS, GUO XJ, ZHI X, WANG K, LI C, HUANG GS, SHEN GX, MEI YF, CUI DX
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF PHYSICAL CHEMISTRY C
  • ISSN:   1932-7447
  • 通讯作者地址:   Shanghai Jiao Tong Univ
  • 被引频次:   33
  • DOI:   10.1021/jp409898d
  • 出版年:   2014

▎ 摘  要

The bandgap engineering of graphene is a challenging task for its potential application. Forming unique structures such as nanoribbons or nanomeshes is an effective way to open up a bandgap in graphene. In this work, a graphene nanomesh (GNM) was prepared through UV-mediated oxidation of a graphene oxide (GO) film at atmosphere. Atomic force microscopy (AFM) was used to track the evolution of the surface morphology of GO during the irradiation. It was observed that a nanoporous network structure was progressively produced in the basal plane, which can be attributed to the fact that highly reactive oxygen species preferentially attack sp(3) carbon-rich regions of the GO. In particular, the as-prepared GNM shows interesting semiconducting characteristics and photoluminescence (PL) phenomenon, which make it become a promising candidate for the use of electronics, optoelectronics, and biomedical engineering. Finally, the field-effect transistors (FETs) were fabricated using the as-prepared GNM as the active channel. The measured electrical characteristics indicate that the use of UV/O-3 is an available choice to open the bandgap of graphene and tune its properties for optoelectronics or biomedical applications.