期刊
CHEMISTRYSELECT
卷 4, 期 11, 页码 3266-3273出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.201803984
关键词
dynamic hard template infiltration; inverse opal; three dimensional; two dimensional; WO3
资金
- National Natural Science Foundation of China [21301123]
- China Scholarship council
- Priority Academic Program Development of Jiangsu Higher Education Institution
- National Science and Engineering Research Council (NSERC) of Canada [2017-05094]
- John R. Evans Leaders Fund (Canada Foundation for Innovation) [27741]
- Research Assistantships Initiative of New Brunswick Innovation Fund (NBIF)
Large-area crack-free 2D and 3D WO3 inverse opal (IO) films, using a wide range of sizes of sacrificial PS spheres as colloidal crystal template, were fabricated by dynamic hard template infiltration strategy. First a dynamic PS opal film was formed floating on the surface of water followed by infiltration of a preformed WO3 sol underneath the PS opal film. The resultant PS/WO3 opal composite film was then deposited on various types of substrates (rigid and flexible) and 2D WO3 IO films were obtained following the removal of the PS template by chemical method. Based on this strategy, multiple layer WO3 IOs were fabricated through a layer by layer route. The WO3 IO films deposited on indium tin oxide coated conductive (ITO) substrates were used as active electrode in the fabrication of electrochromic devices, demonstrating their advanced properties for electrochromic application.
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