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Presents a study which gave evidence of resonant optical absorption with tungsten oxide (WO[sub3]) overcoat on thick silver films. Differential reflectance measurements for WO[sub3] overcoats; Reasons that WO[sub3] has been chosen as the discontinuous overlayer; Comparison between WO[sub3] and MgF[sub2].

Examines the electrical and optical properties of thermally evaporated lithium borate films. Application of the films as lithium ion conductors in electrochromic devices; Representation of the general configuration in thin film form; Details of a complex impedance diagram of a thermally evaporated lithium borate film.

Abstract: 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. [Copyright &y& Elsevier]

Presents a study which investigated the electrochromic coloration characteristics of thin WO[sub3] films. Factor which limits the reversible electrochromic performance of such types of thin films; Background on the potential applications of electrochromism; Observations on the changes in the optical density of the thin films.