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Journal of Materials Science: Materials in Electronics
Published in: Journal of Materials Science: Materials in Electronics 17/2017

29-05-2017

CO2 gas sensing properties of La2O3 thin films deposited at various substrate temperatures

Authors: A. A. Yadav, A. C. Lokhande, P. A. Shinde, J. H. Kim, C. D. Lokhande

Published in: Journal of Materials Science: Materials in Electronics | Issue 17/2017

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Abstract

Carbon dioxide gas (CO2) sensing properties of La2O3 thin films synthesized by spray pyrolysis method are reported. La2O3 thin films deposited at different substrate temperatures (573–623 K) are characterized for their structural, surface morphology, optical and electrical properties and used for CO2 gas response measurements. SEM analyses indicate porous surface morphology. The deposited La2O3 films are crystalline with pronounced orientation along (110) plane, uniform and adhere to the glass substrate. From optical absorbance studies, the optical band gap is found to be 4.2 eV. With porous surface morphology, the maximum response of 18% at 623 K substrate temperature is recorded on exposure of 350 ppm of CO2 gas.
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Metadata
Title
CO2 gas sensing properties of La2O3 thin films deposited at various substrate temperatures
Authors
A. A. Yadav
A. C. Lokhande
P. A. Shinde
J. H. Kim
C. D. Lokhande
Publication date
29-05-2017
Publisher
Springer US
Published in
Journal of Materials Science: Materials in Electronics / Issue 17/2017
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-017-7144-7

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