Title

Synthesis and characterization of ZnO nanowires for nanosensor applications

Authors

Authors

O. Lupan; G. A. Emelchenko; V. V. Ursaki; G. Chai; A. N. Redkin; A. N. Gruzintsev; I. M. Tiginyanu; L. Chow; L. K. Ono; B. R. Cuenya; H. Heinrich;E. E. Yakimov

Comments

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Abbreviated Journal Title

Mater. Res. Bull.

Keywords

Semiconductors; Vapor deposition; Raman spectroscopy; Crystal structure; Optical properties; RAY PHOTOELECTRON-SPECTROSCOPY; AUGER-ELECTRON-SPECTROSCOPY; HYDROGEN; GAS NANOSENSOR; NANOROD ARRAYS; THIN-FILMS; OXIDE NANOSTRUCTURES; ROOM-TEMPERATURE; SURFACE; GROWTH; FABRICATION; Materials Science, Multidisciplinary

Abstract

In this paper we report the synthesis of ZnO nanowires via chemical vapor deposition (CVD) at 650 degrees C. It will be shown that these nanowires are suitable for sensing applications. ZnO nanowires were grown with diameters ranging from 50 to 200 nm depending on the substrate position in a CVD synthesis reactor and the growth regimes. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), photoluminescence (PL), and Raman spectroscopy (RS) have been used to characterize the ZnO nanowires. To investigate the suitability of the CVD synthesized ZnO nanowires for gas sensing applications, a single ZnO nanowire device (50 rim in diameter) was fabricated using a focused ion beam (FIB). The response to H-2 of a gas nanosensor based on an individual ZnO nanowire is also reported. (C) 2010 Elsevier Ltd. All rights reserved.

Journal Title

Materials Research Bulletin

Volume

45

Issue/Number

8

Publication Date

1-1-2010

Document Type

Article

Language

English

First Page

1026

Last Page

1032

WOS Identifier

WOS:000279597100022

ISSN

0025-5408

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