• 文献标题:   In Situ Synthesis of Reduced Graphene Oxide and Gold Nanocomposites for Nanoelectronics and Biosensing
  • 文献类型:   Article
  • 作  者:   DONG XC, HUANG W, CHEN P
  • 作者关键词:  
  • 出版物名称:   NANOSCALE RESEARCH LETTERS
  • ISSN:   1931-7573
  • 通讯作者地址:   NUPT
  • 被引频次:   112
  • DOI:   10.1007/s11671-010-9806-8
  • 出版年:   2011

▎ 摘  要

In this study, an in situ chemical synthesis approach has been developed to prepare graphene-Au nanocomposites from chemically reduced graphene oxide (rGO) in aqueous media. UV-Vis absorption, atomic force microscopy, scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy were used to demonstrate the successful attachment of Au nanoparticles to graphene sheets. Configured as field-effect transistors (FETs), the as-synthesized single-layered rGO-Au nanocomposites exhibit higher hole mobility and conductance when compared to the rGO sheets, promising its applications in nanoelectronics. Furthermore, we demonstrate that the rGO-Au FETs are able to label-freely detect DNA hybridization with high sensitivity, indicating its potentials in nanoelectronic biosensing.