Electrochromic properties of radio frequency magnetron sputter deposited mixed Nb2O5:MoO3 (95:5) thin films cycled in H+ and Li+ ions

被引：31

作者：

Usha, N. ^{[1
]}

Sivakumar, R. ^{[2
]}

Sanjeeviraja, C. ^{[3
]}

机构：

[1] Alagappa Univ, Dept Phys, Karaikkudi 630004, Tamil Nadu, India

[2] Alagappa Univ, Directorate Distance Educ, Karaikkudi 630004, Tamil Nadu, India

[3] Alagappa Chettiar Coll Engn & Technol, Dept Phys, Karaikkudi 630004, Tamil Nadu, India

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2015年 / 30卷

关键词：

Mixed oxide films; X-ray photoelectron spectroscopy; Electrochromic property; Coloration efficiency; OPTICAL-PROPERTIES; OXIDE-FILMS; ELECTRICAL-PROPERTIES; RF POWER; ELECTRODES; STABILITY; OXIDATION; COATINGS;

D O I：

10.1016/j.mssp.2014.09.043

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：

In this paper, we report on rf power induced change in structural, optical, vibrational and electrochromic properties of radio frequency (rf) magnetron sputtered mixed Nb2O5:MoO3 (95:5) films. X-ray diffraction result showed that all the deposited films belong to amorphous nature. The presence of five-valent niobium and six-valent molybdenum in the deposited film was confirmed by the x-ray photoelectron spectroscopic measurement. The maximum average optical transmittance of 76% was observed for the film deposited at 100 W rf power. The decrease in optical energy band gap may be due to the rf power induced effect gives rise to the localized state near the band edges of Nb2O5:MoO3. The longitudinal and transverse optic modes of Nb-O stretching vibrations were observed from the micro-Raman study. The cyclic voltammograms of Li+ and H+ ions clearly show all the films are having better reversibility and reproducibility in their electrochemical analysis. The maximum coloration efficiency of 69.80 cm(2)/C was obtained for the mixed Nb2O5:MoO3 films. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：31 / 40

页数：10

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