Journal
THIN SOLID FILMS
Volume 516, Issue 8, Pages 1646-1650Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2007.05.006
Keywords
electrochromism; tungsten trioxide; thin films; nanostructured films
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Electrochromic properties of porous nanostructured thin films of tungsten trioxide were investigated. Films were fabricated at normal and high vapor incidence angles with the technique of glancing angle deposition in a thermal evaporation chamber. A dry lithiation method was subsequently used to intercalate films with lithium atoms. Coloration in both visible and near-infrared regions was observed with lithium insertion. We report on the morphology, porosity, and optical properties of as-deposited and lithiated films, and discuss the role of substrate tilt in comparing the coloration efficiency of these films. (c) 2007 Elsevier B.V. All rights reserved.
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