Enhanced Field Emission Performance of Tetrapod-liked Zinc Oxide Nanoneedles by Coating with Graphene Oxide Sheets

Title: Enhanced Field Emission Performance of Tetrapod-liked Zinc Oxide Nanoneedles by Coating with Graphene Oxide Sheets

Volume: 8 Issue: 1

Author(s): Chaoxing Wu, Fushan Li, Yongai Zhang, Lingjie Wang and Tailiang Guo

Affiliation:

Keywords: Electron source, field emission, graphene oxide sheets, performance improvement, zinc oxide, tetrapod-like nanoneedles, silver electrodes, T-ZnO and Ag electrode

Abstract: 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.

Cite this article as:

Wu Chaoxing, Li Fushan, Zhang Yongai, Wang Lingjie and Guo Tailiang, Enhanced Field Emission Performance of Tetrapod-liked Zinc Oxide Nanoneedles by Coating with Graphene Oxide Sheets, Current Nanoscience 2012; 8 (1) . https://dx.doi.org/10.2174/1573413711208010023