Nature of substoichiometry in reactively DC-sputtered tungsten oxide thin films and its effect on the maximum obtainable colouration by gases

被引:46
作者
Stolze, M
Camin, B
Galbert, F
Reinholz, U
Thomas, LK
机构
[1] Tech Univ Berlin, Inst Werkstoffwissensch & Technol, D-10623 Berlin, Germany
[2] Tech Univ Berlin, Zent Einrichtung Electronenmikroskopie, D-10623 Berlin, Germany
[3] Bundesanstalt Mat Forsch & Prufung Berlin, D-12205 Berlin, Germany
关键词
optical coatings; optical properties; tungsten oxide; X-ray photoelectron spectrometry;
D O I
10.1016/S0040-6090(02)00058-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Reactively DC-sputtered tungsten trioxide was investigated with respect to the composition W:O:H, W-valencies and electrical resistance in the as-deposited state for possible application as electro- or gasochromic material. The extent of colouration levels obtained with a dispersed Pt-coverage in a H-containing atmosphere were correlated with the analytical results. Possible explanations for the participation of different tungsten valencies in the charge transfer process underlying the optical absorption in the coloured state are presented. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:254 / 264
页数:11
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