• 文献标题:   Enhanced Field Emission Performance of Tetrapod-liked Zinc Oxide Nanoneedles by Coating with Graphene Oxide Sheets
  • 文献类型:   Article
  • 作  者:   WU CX, LI FS, ZHANG YG, WANG LJ, GUO TL
  • 作者关键词:   electron source, field emission, graphene oxide sheet, performance improvement, zinc oxide tetrapodlike nanoneedle
  • 出版物名称:   CURRENT NANOSCIENCE
  • ISSN:   1573-4137 EI 1875-6786
  • 通讯作者地址:   Fuzhou Univ
  • 被引频次:   10
  • DOI:  
  • 出版年:   2012

▎ 摘  要

The field emissin properties of tetrapod-liked zinc oxide nanoneedles (T-ZnO) on silver electrodes were enhanced by coating with graphene oxide (GO) sheets. Field emission device based on GO sheets coated T-ZnO exhibited lower operation voltage, better stability and more emission uniformity when compared with the pure T-ZnO emitters. It is proposed that the introduction of GO sheets improved the mechanical connection and electrical conduction between the T-ZnO and Ag electrode, and resulted in the improved field emission property for the emitters.