Improvement of electrochromic coloration efficiency by oxygen deficiency in sputtering a-WOx films

被引：5

作者：

Ho, JJ ^{[1
]}

Chen, CY

Lee, WJ

机构：

[1] Natl Taiwan Ocean Univ, Dept Elect Engn, Chilung 202, Taiwan

[2] Fortune Inst Technol, Dept Comp Sci & Informat Engn, Kaohsiung 842, Taiwan

[3] Ind Technol Res Inst, Optoelect & Syst Lab, Hsinchu 31015, Taiwan

来源：

ELECTRONICS LETTERS | 2004年 / 40卷 / 08期

关键词：

D O I：

10.1049/el:20040290

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Experimental results show that the coloration efficiency value and its light modulation capability of oxygen partial pressure at the optimum 6.5 x 10(-3) torr are improved about tenfold and 234%, respectively, better than that at 2.0 x 10(-3) torr of amorphous tungsten oxide (a-WOx) films by oxygen deficient stoichiometries, thus offering good electrochromic performance for opto-switching applications. It is concluded that the optical absorption of a coloured a-WOx film can be satisfactorily described by an intervalence charge-transfer transition mechanism between localised W5+ and W6+ states.

引用

页码：510 / 511

页数：2

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