Electrochemical and Optical Properties of WO3 Prepared by Sol-Gel Coating |
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| Journal | Materials Science Forum (Volumes 544 - 545) |
|---|---|
| Volume | Eco-Materials Processing and Design VIII |
| Edited by | Hyungsun Kim, Junichi Hojo and Soo Wohn Lee |
| Pages | 1081-1084 |
| DOI | 10.4028/www.scientific.net/MSF.544-545.1081 |
| Citation | Chang Yeoul Kim et al., 2007, Materials Science Forum, 544-545, 1081 |
| Online since | May, 2007 |
| Authors | Chang Yeoul Kim, Seong Geun Cho, Seok Park, Tae Yeoung Lim, Duck Kyun Choi |
| Keywords | Current Density, Electrochemical, Electrochromic, Optical, Sol-Gel |
| Abstract | Electrochromic WO3 thin film was prepared by using tungsten metal solution in hydrogen peroxide as a starting solution and by a sol-gel dip coating method. The thermal analysis was conducted by DSC/TG method. A DSC/TG analysis and the XRD patterns showed that a tungsten oxide crystal phase was formed at 400oC. WO3 thin film when heat-treated at 300oC was amorphous and had a better electrochemical property than that of the crystalline phase. Crystallization of tungsten oxide decreased active sites of ion intercalation so that the current density decreased with heat-treatment temperature. |
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