Preparation of double-doping LaFeO3 thin film for ethanol sensing application

被引：3
|
作者：
Smiy, S. [1 ,2 ]
Bejar, M. [1 ]
Dhahri, E. [1 ]
Fiorido, T. [2 ]
Aguir, K. [2 ]
Bendahan, M. [2 ]
机构：
[1] Univ Sfax, Fac Sci, Lab Phys Appl, BP 1171, Sfax 3000, Tunisia
[2] Aix Marseille Univ, Univ Toulon, CNRS, IM2NP, F-13013 Marseille, France
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2022年 / 1267卷
关键词：
La-0; 8; Ca-0; 1; Pb-0; FeO3; films; sensors; ethanol; response; 5; ppm; PERFORMANCE; MECHANISM; CERAMICS; SENSOR;
D O I：
10.1016/j.molstruc.2022.133543
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：
Recently, perovskite-based nanomaterials are used in diverse applications. Many perovskite nanoparticle-based devices have been demonstrated with extraordinary sensing performances to various chemical species in both solid and solution states. In this context, a new ethanol gas sensor La0.8Ca0.1Pb0.1FeO3 has been developed. La0.8Ca0.1Pb0.1FeO3 film has been prepared using the drop coating method onto SiO2 /Si transducers with platinum interdigited electrodes based on the use of nanopowders which are prepared by sol-gel method. X-ray diffraction (XRD) showed that our sample was still perovskite phase with or-thorhombic structure with Pnma space group. The electrical properties showed the P-type semiconduc-tor behavior of our sensor and the ethanol sensing measurements revealed his good sensitivity towards C2H5OH-gas. The response ( S = Rg/Ra) was found to increase from 2 . 040 to 3 . 250 when concentration increased from 5 ppm to 30 ppm at the operating temperature of 250 degrees C.(c) 2022 Elsevier B.V. All rights reserved.
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页数：8
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