摘要
TiO2 materials possessing not only photocatalytic but also electrochromic properties have attracted many research and development interests. Though WO3 exhibits excellent electrochromic properties, the much higher cost and water-sensitivity of WO3 as compared with the TiO2 may restrict the practical application of WO3 materials. In the present study, the feasibility of preparing nanocrystalline porous TiO2/WO3 composite thin films was investigated. Precursors of sols TiO2 and/or WO3 and polystyrene microspheres were used to prepare nanocrystalline pure TiO2, WO 3, and composite TiO2/WO3 thin films by spin coating. The spin-coated thin films were amorphous and, after heat treating at a temperature of 500°C, nanocrystalline TiO2, TiO 2/WO3, and WO3 thin films with or without pores were prepared successfully. The heat-treated thin films were colorless and coloration-bleaching phenomena can be observed during cyclic voltammetry tests. The heat-treated thin films exhibited good reversible electrochromic behavior while the porous TiO2/WO3 composite film exhibited improved electrochromic properties.
原文 | 英語 |
---|---|
頁(從 - 到) | 228-233 |
頁數 | 6 |
期刊 | Thin Solid Films |
卷 | 494 |
發行號 | 1-2 |
DOIs | |
出版狀態 | 已發佈 - 1月 3 2006 |
對外發佈 | 是 |
ASJC Scopus subject areas
- 表面、塗料和薄膜
- 凝聚態物理學
- 表面和介面