期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 231, 期 -, 页码 793-799出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2016.03.104
关键词
Thin films; Composite materials; Sol-gel growth; Sputtering; Formaldehyde sensor
资金
- ANCS (National Authority for Scientific Research), Ministry of Economy, Trade and Business Environment through the National Program Capacities [257/28.09.2010]
This work is dedicated to the study of the structural, electrical and gas-sensing properties of some thin films obtained through rf magnetron sputtering using La0.8Pb0.2FeO3 (LPFO) and La0.8Pb0.2Fe0.8Zn0.2O3 (LPFO-Zn) perovskites as targets. Electrical behaviour of the obtained films is that of a p-type semiconductor for all studied gases, within the temperature range 100-380 degrees C. The thin films obtained with LPFO-Zn targets in which Zn2+ ions were partially substituted by Fe3+ ions present the best response to formaldehyde. At a concentration of 400 ppm gas at the operating temperature of 330 degrees C, the response to formaldehyde is spectacular (540). (C) 2016 Elsevier B.V. All rights reserved.
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