Deep profiles of lithium in electrolytic structures of ITO/WO3 for electrochromic applications

被引：16

作者：

Porqueras, I ^{[1
]}

Viera, G ^{[1
]}

Martí, J ^{[1
]}

Bertran, E ^{[1
]}

机构：

[1] Univ Barcelona, Dept Fis Aplicada & Opt, E-08028 Barcelona, Spain

来源：

THIN SOLID FILMS | 1999年 / 343卷

关键词：

electrochromic; dry lithiation; tungsten trioxide; optical properties;

D O I：

10.1016/S0040-6090(98)01600-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lithium doped WO3 electrochromic films have been deposited by thermal reactive evaporation of LiClO4 and WO3 ultra-pure powder mixture for different concentrations of the former from a Joule effect source, using an oxygen partial pressure of 5 x 10(-2) Pa. The substrate was a transparent conducting (20-25 Ohm/square), ITO film previously deposited on standard glass in the same run as the WO3 deposition, and it was kept at 200 degrees C of temperature during the WO3 evaporation. Secondary ion mass spectrometry (SIMS) and X-ray photoelectron spectroscopy (XPS) analysis revealed intercalation of Li+ and Cl- ions on the WO3 layer. Chrono-amperometric measurements with simultaneous optical transmittance analysis were performed in order to evaluate the electrochromic colouring efficiency and also the role played by the Li+ cations and the Cl- anions in the electrochromic structures. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：179 / 182

页数：4