کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1672806 1008939 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparative study of gasochromic and electrochromic effect in thermally evaporated tungsten oxide thin films
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Comparative study of gasochromic and electrochromic effect in thermally evaporated tungsten oxide thin films
چکیده انگلیسی

Substoichiometric tungsten oxide films (WO3 − y, 0.49 ≥ y ≥ 0.15) were prepared by non-reactive thermal evaporation of WO3 powder in vacuum. The thin film composition, structure and optical properties were investigated with the purpose to establish their dependence on the deposition conditions and to prove a possible correlation between electrochromic and gasochromic colouration. An analogy in the dependencies of the maximum achievable optical density on the thin film oxygen content for gasochromically and electrochromically coloured films was observed.In-situ performed XPS measurements suggested that the main mechanism of gasochromic colouration is charge transfer between W6+ and W5+ states, i.e., similar to the electrochromic effect.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 517, Issue 11, 2 April 2009, Pages 3326–3331
نویسندگان
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