Field emission and optical properties of ZnO nanowires grown directly on conducting brass substrates

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Kaifu Huo
  • Jijiang Fu
  • Hongwei Ni
  • Yemin Hu
  • Guixiang Qian
  • Zheng Hu

Detail(s)

Original languageEnglish
Pages (from-to)3848-3852
Journal / PublicationJournal of Nanoscience and Nanotechnology
Volume9
Issue number6
Publication statusPublished - Jun 2009

Abstract

Large-area and uniform ZnO nanowires have been produced directly on a conducting brass substrate by annealing a Cu 0.66Zn 0.34 foil under a mixture of argon and oxygen. The morphology, structure, and composition of the ZnO nanowires are characterized by X-ray diffraction, electron microscopy, energy-dispersive X-ray spectrometry, and X-ray photoelectron spectroscopy. The ZnO nanowires with diameters of about 40-70 nm and lengths up to micrometers grow preferentially along the [001] direction. Since the Cu 0.66Zn 0.34 foil serves as both the Zn source and substrate, the synthesis and assembly of the ZnO nanowires on a conducting substrate is accomplished in one step, and good intrinsic adhesion and robust electrical contact between the ZnO nanowires and conducting substrate are realized. This ZnO configuration forms an ideal field emitter and good field emission properties are corroborated in this study. Photoluminescence studies indicate that these ZnO nanowires have good optical quality exhibiting strong ultraviolet (UV) emission at 383 nm and a weak visible emission band centered around 485 nm at room temperature. The good field emission and optical properties suggest that ZnO nanowires fabricated by this method have promising applications in nano-optoelectronic and field emission devices.Copyright © 2009 American Scientific Publishers All rights reserved.

Research Area(s)

  • Conducting metal substrate, Field emission., In-Situ growth, Photoluminescence, Raman scattering spectroscopy, ZnO nanowires

Citation Format(s)

Field emission and optical properties of ZnO nanowires grown directly on conducting brass substrates. / Huo, Kaifu; Fu, Jijiang; Ni, Hongwei; Hu, Yemin; Qian, Guixiang; Chu, Paul K.; Hu, Zheng.

In: Journal of Nanoscience and Nanotechnology, Vol. 9, No. 6, 06.2009, p. 3848-3852.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review