Studies on electrical properties and CO-sensing characteristics of La0.9 0.1FeO3

被引：1
|
作者：
牟宗刚 [1 ]
张玲 [2 ]
李曦峰 [1 ]
胡季帆 [3 ]
机构：
[1] Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan
[2] School of Resources and Evironment, University of Jinan
[3] State Key Laboratory for Crystal Materials and School of Physics and Microelectronics, Shandong University
来源：
Journal of Rare Earths | 2011年 / 29卷 / 04期
关键词：
La0.9□0.1FeO3; perovskite structure; CO-sensing; electrical properties; rare earths;
D O I：
暂无
中图分类号：
TB383.3 [];
学科分类号：
摘要：
Semiconducting sensors offer an inexpensive and simple method for monitoring gases. Sensors based on the ABO3-type composite oxides materials have an advantage of high stability. The perovskite structures of these compounds are preserved, when an A-site deficiency of some perovskite structure compounds was formed. However, they exhibit particular physical properties. In this paper, La0.9 0.1FeO3 powder with an orthorhombic perovskite phase was prepared by sol-gel method. The electrical properties and CO-sensing characteristics of the La0.9 0.1FeO3 were also investigated. The results demonstrated that the La0.9 0.1FeO3 was a p-type semiconductor material. Compared with LaFeO3, the conductance of La0.9 0.1FeO3 was better than that of LaFeO3. The sensor based on La0.9 0.1FeO3 showed excellent CO gas-sensing characteristics.
引用
收藏
页码：374 / 377
页数：4
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