Morphology and inner structure of ethanol sensitive thin films of tin oxide operating at near room temperature

Thin tin oxide films were fabricated by reactive RF magnetron sputtering. It was shown that the films possess gas sensitivity to ethanol vapor at 38°C. Measurements of the morphology and cleavage inner structure of the samples by atomic-force and scanning electron microscopy demonstrate that the fil...

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Veröffentlicht in:Technical physics letters 2017-06, Vol.43 (6), p.531-534
Hauptverfasser: Mahdi, O. S., Malyar, I. V., Galushka, V. V., Smirnov, A. V., Sinev, I. V., Venig, S. B.
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container_end_page 534
container_issue 6
container_start_page 531
container_title Technical physics letters
container_volume 43
creator Mahdi, O. S.
Malyar, I. V.
Galushka, V. V.
Smirnov, A. V.
Sinev, I. V.
Venig, S. B.
description Thin tin oxide films were fabricated by reactive RF magnetron sputtering. It was shown that the films possess gas sensitivity to ethanol vapor at 38°C. Measurements of the morphology and cleavage inner structure of the samples by atomic-force and scanning electron microscopy demonstrate that the films are composed of nanodimensional rod-like grains oriented normally to the substrate. The grains are separated by pores piercing the whole film. It was found that the grain diameter distribution is normal logarithmic one with several centers related as small integers, which indicates that the grains coalesce. The minimum grain size of 6 nm might correspond to the critical nucleus size under the used conditions of film deposition.
doi_str_mv 10.1134/S1063785017060104
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subjects Alloys
Atomic force microscopy
Atomic structure
Classical and Continuum Physics
Cleavage
Coalescing
Ethanol
Grain size
Grains
Integers
Magnetron sputtering
Morphology
Nuclei
Oxide coatings
Physics
Physics and Astronomy
Piercing
Porosity
Room temperature
Scanning electron microscopy
Thin films
Tin oxides
title Morphology and inner structure of ethanol sensitive thin films of tin oxide operating at near room temperature
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