Acta Phys. -Chim. Sin. ›› 2009, Vol. 25 ›› Issue (08): 1650-1654.doi: 10.3866/PKU.WHXB20090801

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Preparation and Characterization of Highly Ordered WO3 Nanorod Arrays

ZHENG Hua-Jun, WANG Xing-Dong, GU Zheng-Hai   

  1. College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
  • Received:2009-02-19 Revised:2009-05-27 Published:2009-07-16
  • Contact: ZHENG Hua-Jun E-mail:zhenghj@zjut.edu.cn

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Abstract:

Tungsten oxide (WO3) nanorod arrayswere prepared on an aluminumlatticemembrane by combining direct current (DC)magnetron sputtering and aluminumanodization. The surface morphology was investigated by atomic force microscopy (AFM) and scanning electron microscopy (SEM). The structure and electrochemical properties of the WO3 nanorod arrays were characterized by X-ray diffraction (XRD) and an electrochemical workstation (EW). The optical performance was tested using a UV-Vis absorbance spectrophotometer (UV). Results showed that the sputtered atoms adsorbed preferentially onto the protuberant nanodots of the aluminum lattice membrane during magnetron sputtering and then nucleated and grew into nanorods. The average diameter of the WO3 nanorods is about 200 nm which is in line with the diameter of the alaminum lattice membrence. The WO3 nanorod arrays possess certain electrochromic performance.

Key words: Electrochromism, WO3 nanorod arrays, Aluminumlattice membrane, Magnetron sputtering