Electrical conductivity of nanocrystalline ceria and zirconia thin films

被引：292
|
作者：
Kosacki, I [1 ]
Suzuki, T [1 ]
Petrovsky, V [1 ]
Anderson, HU [1 ]
机构：
[1] Univ Missouri, Elect Mat Appl Res Ctr, Rolla, MO 65401 USA
来源：
SOLID STATE IONICS | 2000年 / 136卷 / 136-137期
关键词：
nanocrystals; oxygen conductors; nonstoichiometry; zirconia; ceria; electrical conductivity; impedance spectroscopy;
D O I：
10.1016/S0167-2738(00)00591-9
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The results of studies of the preparation, structure and electrical conductivity of ZrO2:16% Y and CeO2 thin films are presented. Dense films with grain size controlled in the region of 1-400 nm have been obtained on monocrystalline sapphire and polycrystalline Al2O3, substrates using a polymeric precursor spin coating method. The electrical conductivity of nanocrystalline thin films has been studied as a function of oxygen activity and temperature and correlated with the microstructure. Nanocrystalline specimens are characterized by enhanced electrical conductivity and different stoichiometry compared with microcrystalline material. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：1225 / 1233
页数：9
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