Abstract
Electrochromic performance of tungsten oxide (WO 3) has attracted extensive interest due to its applications in smart windows, spacecraft thermal control and other optical devices. Here we report ordered macroporous WO 3 thin films prepared by the template-assisted solgel method. The principle finding of the paper is that the ordered multi-layer interconnected porous structure facilitates the diffusion of ions/electrons as well as the light transmission. Consequently we see improved IR optical modulation and faster response time in the macroporous WO 3 films. Moreover, both small pore size and perfection of ordered porous structure contribute to the improved electrochromic performance. These results have obvious practical relevance for fast near IR electrochromic devices exemplified by aerospace thermal control systems.
| Original language | English |
|---|---|
| Pages (from-to) | 251-257 |
| Number of pages | 7 |
| Journal | Solar Energy Materials and Solar Cells |
| Volume | 100 |
| DOIs | |
| State | Published - May 2012 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Electrochromic properties
- Near infrared
- Ordered macroporous
- WO thin films
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