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

页码：374 / 377

页数：4

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