• 文献标题:   Mechanism of Enhanced Photocurrent of Graphene by Polymer and Metal Nanoparticles
  • 文献类型:   Article
  • 作  者:   KIM UJ, HUR J
  • 作者关键词:   graphene, photocurrent, doping, polystyrene, gold nanoparticle
  • 出版物名称:   JOURNAL OF NANOSCIENCE NANOTECHNOLOGY
  • ISSN:   1533-4880 EI 1533-4899
  • 通讯作者地址:   Gachon Univ
  • 被引频次:   0
  • DOI:   10.1166/jnn.2017.14731
  • 出版年:   2017

▎ 摘  要

We present a novel method for controlling the electronic band structure and photocurrent for graphene by introducing polymer interlayer and metal nanoparticles. Specifically, polystyrene spincoated onto the graphene led to a slight change in the electric (p-doping) and optoelectronic properties (photocurrent) of the graphene as revealed by electrical characterizations and photocurrent mapping analyses, respectively. When polystyrene was combined with gold nanoparticles, the plasmonic-enhanced photocurrent was consistent across the graphene surface. Furthermore, the p-doping effect by polystyrene and gold nanoparticles was evaluated by Raman spectrum and 2D/G Raman mapping analyses.