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Tungsten Oxide Nanorods Array and Nanobundle Prepared by Using Chemical Vapor Deposition Technique

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Author(s): Wang XP | Yang BQ | Zhang HX | Feng PX

Journal: Nanoscale Research Letters
ISSN 1931-7573

Volume: 2;
Issue: 8;
Start page: 405;
Date: 2007;
Original page

Keywords: Nanostructure | Tungsten oxide | Nanorod | Nanobundle | CVD

ABSTRACT
AbstractTungsten oxide (WO3) nanorods array prepared using chemical vapor deposition techniques was studied. The influence of oxygen gas concentration on the nanoscale tungsten oxide structure was observed; it was responsible for the stoichiometric and morphology variation from nanoscale particle to nanorods array. Experimental results also indicated that the deposition temperature was highly related to the morphology; the chemical structure, however, was stable. The evolution of the crystalline structure and surface morphology was analyzed by scanning electron microscopy, Raman spectra and X-ray diffraction approaches. The stoichiometric variation was indicated by energy dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy.

Tango Jona
Tangokurs Rapperswil-Jona

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