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Morphology and photoluminescence properties of SrWO4 films prepared by the anodization method

LIYE ZHAO1, JIANLING ZHAO1,* , XIXIN WANG1, CHENGCHUN TANG1

Affiliation

  1. School of Material Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China

Abstract

In this paper, we report on the morphology and optical properties of SrWO4 films prepared by constant voltage anodization of tungsten foils in Sr(OH)2 solution. These films are analyzed by scanning electron microscopy (SEM), X-ray diffractometer (XRD) and photoluminescence measurements (PL), respectively. SEM micrographs indicate that the SrWO4 films with dense and large particles in uniform size can be prepared at appropriate anodization voltage, temperature, and electrolyte concentration. XRD patterns show that the SrWO4 films present a scheelite-type tetragonal structure and are free of secondary phases. PL spectra verify that a maximum emission situated at around 360 nm is obtained when the SrWO4 films are excited at 200 nm..

Keywords

SrWO4 film, Photoluminescence, Constant voltage, Anodization, Tungsten.

Submitted at: March 9, 2011
Accepted at: April 11, 2011

Citation

LIYE ZHAO, JIANLING ZHAO, XIXIN WANG, CHENGCHUN TANG, Morphology and photoluminescence properties of SrWO4 films prepared by the anodization method, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 4, pp. 343-347 (2011)