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Home / Current Nanoscience, Volume 8, Number 1

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

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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.





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

Document Type: Research Article

Publication date: 01 February 2012

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  • Current Nanoscience publishes authoritative reviews and original research reports, written by experts in the field on all the most recent advances in nanoscience and nanotechnology. All aspects of the field are represented including nano- structures, synthesis, properties, assembly and devices. Applications of nanoscience in biotechnology, medicine, pharmaceuticals, physics, material science and electronics are also covered. The journal is essential to all involved in nanoscience and its applied areas.
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