Electrochromism and photochromism in amorphous molybdenum oxide films

被引：123

作者：

Scarminio, J

Lourenco, A

Gorenstein, A

机构：

[1] UNICAMP,IFGW,DFA,BR-13084970 CAMPINAS,SP,BRAZIL

[2] UEL,DEPT FIS,BR-86051970 LONDRINA,PR,BRAZIL

来源：

THIN SOLID FILMS | 1997年 / 302卷 / 1-2期

关键词：

electrochemistry; molybdenum oxide; sputtering;

D O I：

10.1016/S0040-6090(96)09539-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, we present a study of the influence of the oxygen flow rate (phi) during r.f, sputtering of molybdenum metal targets on the resulting MoOx thin films. The optical behavior upon Li+ electrochemical intercalation (electrochromic effect) or UV irradiation (photochromic effect) is analyzed. At low phi, blue substoichiometric molybdenum oxide films are formed. At high phi, the composition of the oxide films approaches that of transparent, stoichiometric MoO3. The optical gap for the as-grown films increases with the increase of phi, in the range 2.8 eV for low phi to 3.2 eV at high phi. Lithium intercalation or UV irradiation promoted transmittance changes. The highest electrochemical and photochemical transmittance change was obtained for the sample deposited at low phi. (C) 1997 Elsevier Science S.A.

引用

页码：66 / 70

页数：5

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