Sprayed CeO2 thin films for electrochromic applications

被引:25
作者
El Idrissi, B [1 ]
Addou, M
Outzourhit, A
Regragui, M
Bougrine, A
Kachouane, A
机构
[1] Fac Sci, Lab Optoelect & Physicochim Mat, Dept Phys, Kenitra, Morocco
[2] Fac Sci Semlalia, Lab Phys Solide & Couches Mincess, Dept Phys, Marrakech, Morocco
关键词
thin films; CeO2; spray pyrolysis; electrochromism;
D O I
10.1016/S0927-0248(00)00254-3
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
Cerium dioxide (CeO2) thin films were prepared by spray pyrolysis using hydrated cerium chloride (CeCl3. 7H(2)O) as source compound. The films prepared at substrate temperatures below 300 degreesC were amorphous, while those prepared at optimal conditions (T-s = 500 degreesC, s = 5 ml/min) were polycrystalline, cubic in structure, preferentially oriented along the (200) direction and exhibited a transmittance value greater than 80% in the visible range. The cyclic voltammetry study showed that films of CeO2 deposited on ITO pre-coated glass substrates were capable of charge insertion/extraction when immersed in an electrolyte of propylene carbonate with 1M LiClO4. These films also remained fully transparent after Li + intercalation/deintercalation. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:1 / 8
页数:8
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