Improved cyclability by tungsten addition in electrochromic NiO thin films

被引：80

作者：

Penin, N ^{[1
]}

Rougier, A ^{[1
]}

Laffont, L ^{[1
]}

Poizot, P ^{[1
]}

Tarascon, JM ^{[1
]}

机构：

[1] CNRS, UMR 6007, Lab React & Chim Solides, F-80039 Amiens, France

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2006年 / 90卷 / 04期

关键词：

Ni-W-O mixed systems; pulsed laser deposition; durability; electrochromism; thin films;

D O I：

10.1016/j.solmat.2005.01.018

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：

Aiming at improving the electrochromic properties of NiO thin films, well-known as anodic counter electrodes, the effect of tungsten addition was investigated. Ni-W-O thin films were deposited by pulsed laser deposition in optimized conditions, namely a 10(-1) mbar oxygen pressure and a room temperature substrate. The presence of W led to a progressive film amorphization. An increase in cyclability for Ni-W-O (5%(t) WO3) electrode, cycled in KOH I M electrolyte, was associated with a limited dissolution of the oxidized phases with tungsten addition. HRTEM investigations of cycled films revealed that the stabilization is correlated to the existence of an alpha(II) hydroxide phase. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：422 / 433

页数：12

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