期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 25, 期 -, 页码 62-65出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2012.09.017
关键词
Tungsten oxide; Electrochromics; Ultrasonic spray deposition; Mesoporous; Sol-gel
资金
- National Science Foundation [DMR-0820518]
- Department of Energy [DE-AC36-08GO28308]
Tungsten oxide (WO3) thin films with nanoscale porosity were prepared by adopting templating sol-gel chemistry to ultrasonic spray deposition (USD). It was found that the electrochromic performance was strongly correlated to the annealing conditions used to remove the triblock copolymer template. Optimized films display state-of-the-art performance with respect to coloration efficiency (>50 cm(2)/C). optical modulation (>75%), and switching times (<10 s). The films exhibit good durability, displaying disordered, nanocrystalline morphology. USD is compatible with in line manufacturing, and the performance was notably improved over films deposited by spin coating using the same chemistry. (C) 2012 Elsevier B.V. All rights reserved.
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