Influences of Reaction Conditions on the Morphology and Properties of CaWO₄ Films Prepared by Anodization

Abstract:

CaWO₄ films were prepared in saturated Ca(OH)₂ solution through constant-voltage anodization method. Influences of reaction time, voltage and temperature on the morphology, crystal structure and photoluminescence properties were studied through scanning electron microscopy (SEM), X-ray diffractometer (XRD) and photoluminescence measurements (PL). Results show that the as-prepared CaWO₄ film is of tetragonal phase, the reaction conditions affect the morphology, grain size and photoluminescence properties greatly. The CaWO₄ film anodized at 20V, 45°C for 40 min is flat, uniform and dense with stronger photoluminescence intensity. The formation process of CaWO₄ films has also been discussed.

• Periodical: Materials Science Forum (Volumes 809-810)
• Pages: 654-659
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.809-810.654
• Online since: December 2014
• Authors: Jian Ling Zhao, Yong Liao, Li Ye Zhao, Xiao Jing Yang, Wei Yu, Xi Xin Wang*
• Keywords: Anodization, CaWO₄ Film, Morphology, Photoluminescence (PL)

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