Peer-Reviewed Journal Details
Mandatory Fields
Song, YY; Gao, ZD; Wang, JH; Xia, XH; Lynch, R
2011
January
Advanced Functional Materials
Multistage Coloring Electrochromic Device Based on TiO2 Nanotube Arrays Modified with WO3 Nanoparticles
Published
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Optional Fields
CHEMICAL-VAPOR-DEPOSITION SENSITIZED SOLAR-CELLS THIN-FILMS TUNGSTEN-OXIDE PHOTOCATALYTIC ACTIVITY TITANIUM-DIOXIDE ANODIC-OXIDATION ANODIZATION ABSORPTION INSERTION
21
1941
1946
WO3 nanoparticles loaded in TiO2 nanotube arrays, fabricated by a chemical bath deposition (CBD) technique in combination with a pyrolysis process, is uniform and the diameter can be easily adjusted by the deposition times. The resultant hybrid nanotubes array shows a multistage coloring electrochromic response at different potential bias. The formation of a 3-dimensional WO3/TiO2 junction promotes unidirectional charge transport due to the one-dimensional features of the tubes, which leads to the significant positive-shift onset potential of the cathodic reaction (ion insertion) and the highly increased proton storage capacity. Compared to non-decorated nanotube arrays, the enhanced electrochromic properties of longer lifetime, higher contrast ratio (bleaching time/coloration time), and improved tailored electrochromic behavior could be achieved using the composite films.
10.1002/adfm.201002258
Grant Details