Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
81068 | Solar Energy Materials and Solar Cells | 2007 | 9 Pages |
Abstract
The effect of thermal annealing on the electrochromic properties of the tungsten oxide (WO3−x) nanowires deposited on a transparent conducting substrate by vapor evaporation was investigated. The X-ray diffraction (XRD) indicated that the structures of the nanowries annealed below 500 °C had no significant change. The X-ray photoelectron spectroscopy (XPS) analysis suggested that the O/W ratio and the amount of W6+ ions in the annealed nanowire films could be increased as increasing annealing temperature. Increased annealing temperature could promote the coloration efficiency and contrast of the nanowire films; however, it could also affect the switching speed of the nanowire films.
Related Topics
Physical Sciences and Engineering
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Authors
Chia-Ching Liao, Fu-Rong Chen, Ji-Jung Kai,