Optimisation of the electrochromic properties of Nb2O5 thin films produced by sol-gel route using factorial design

被引：30

作者：

Rosario, AV ^{[1
]}

Pereira, EC ^{[1
]}

机构：

[1] Univ Fed Sao Carlos, Lab Interdisciplinar Eletroquim & Ceram, Dept Quim, Ctr Multidisciplinar Desenvolvimento Mat Ceram, BR-13560970 Sao Carlos, SP, Brazil

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2002年 / 71卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

electrochromism; Nb2O5; factorial design;

D O I：

10.1016/S0927-0248(01)00040-X

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：

Electrochemical and electrochromical properties of oxide films are dependent on their microstructure and morphological properties. Thus, the effects of three preparation variables on the electrochemical and electrochromical properties of Nb2O5 thin films prepared by the Pechini method were investigated. In order to minimise the number of experiments, a factorial design 2 3 was used. The effects of the following variables: CA/EG molar ratio, CA/[Nb] molar ratio and calcination temperature were evaluated. Films prepared with the resin composition CA/EG = 1:4, CA/[Nb] = 10:1 and calcined at 500degreesC, showed the highest values of intercalation charge, transmittance variation and coloration efficiency, 22 mC/cm(2), 84% and 23 cm(2) C-1, respectively. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：41 / 50

页数：10

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