STUDY OF ELECTRODEPOSITED TUNGSTEN TRIOXIDE THIN-FILMS

被引：62

作者：

SHEN, PK ^{[1
]}

TSEUNG, ACC ^{[1
]}

机构：

[1] UNIV ESSEX,DEPT CHEM & BIOL CHEM,CHEM ENERGY RES CTR,WIVENHOE PK,COLCHESTER CO4 3SQ,ESSEX,ENGLAND

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1992年 / 2卷 / 11期

关键词：

TUNGSTEN TRIOXIDE; ELECTROCHROMISM; ELECTRODEPOSITION; PERMEABILITY;

D O I：

10.1039/jm9920201141

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

WO3 films have been electrodeposited in a solution containing dissolved tungsten and alcohol. The deposition conditions and the deposition efficiency on various substrates were studied. The properties of the electrodeposited WO3 film were characterised by electrochemical, surface analytical and in situ optical techniques. The results indicated that the electrodeposited WO3 films have similar electrochromic behaviour to that of anodically grown WO3 films. A Nernst type response for H+ concentration has been demonstrated on reduced films, with a slope of 64 mV (pH)-1. The electrodeposited films have selective permeability to different ions and molecules. Since the zero-charge potential of the electrodeposited film is much more anodic, anions such as Fe(CN)63-/Fe(CN)64- cannot enter the n-type film at potentials more negative than its zero-charge potential. However, some cations can diffuse in and out of the electrodeposited WO3 film reversibly.

引用

页码：1141 / 1147

页数：7

共 38 条

[31] ELECTROCHROMIC TUNGSTEN-OXIDE FILMS FOR ENERGY-EFFICIENT WINDOWS [J].