Optical properties of electrochromic iridium oxide and iridium-tantalum oxide thin films in different colouration states

被引：25

作者：

Backholm, Jonas ^{[1
]}

Niklasson, Gunnar A. ^{[1
]}

机构：

[1] Uppsala Univ, Dept Engn Sci, Angstrom Lab, SE-75121 Uppsala, Sweden

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2008年 / 92卷 / 11期

基金：

瑞典研究理事会;

关键词：

electrochromism; iridium oxide; optical constants;

D O I：

10.1016/j.solmat.2008.05.015

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Electrochromic iridium oxide (IrOx) and iridium-tantalum oxide (IrTaOx) thin films were prepared by sputtering. Complex refractive indices were determined for samples deposited on indium-tin oxide covered glass in different colouration states, and for as-deposited samples on sapphire and Corning glass. The refractive index was found to be practically constant for both IrOx (similar to 1.3) and IrTaOx (similar to 2). The extinction coefficient was found to vary between the coloured and bleached states with similar to 35% for IrOx and similar to 55% for IrTaOx at 660 nm. This is believed to be a result of the removal of intraband transitions within the Ir t(2g) band during bleaching. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1388 / 1392

页数：5

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