Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
189 0 |
SM ISO690:2012 KOROTCHENKOV, Ghenadii, DIBATTISTA, Michael, SCHWANK, Johannes W., BRYNZARI, Vladimir. Structural characterization of SnO2 gas sensing films deposited by spray pyrolysis. In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 2000, vol. 77, pp. 33-39. ISSN 0921-5107. DOI: https://doi.org/10.1016/S0921-5107(00)00455-4 |
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Materials Science and Engineering B: Solid-State Materials for Advanced Technology | ||||||
Volumul 77 / 2000 / ISSN 0921-5107 | ||||||
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DOI:https://doi.org/10.1016/S0921-5107(00)00455-4 | ||||||
Pag. 33-39 | ||||||
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Rezumat | ||||||
The results of SnO2 thin film structure characterization using X-ray diffraction, scanning electron microscopy, and Auger electron spectroscopy are presented in this report. We discuss the influence of film deposition conditions and modes of heat treatment in the range of temperatures (400-900 °C) on crystallite size and predominant orientation. It was determined that SnO2 films, deposited by spray pyrolysis, are textured polycrystalline films. The crystallite sizes in the films could be controlled over a range from 9 to 25 nm by varying the film thickness, deposition method, and post-deposition annealing temperature. The structure of these SnO2 films was very stable in an oxygen-containing atmosphere. It was found that crystallite orientation, in addition to crystallite size, plays a major role in determining the gas sensitivity of SnO2 films. Crystallites with crystallographic (110) and (200) planes parallel to substrate are predominant in the films. The relative amounts of crystallites with a (110) and (200) orientation depend on film thickness and deposition mode. |
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Cuvinte-cheie Engineering controlled terms Annealing, Auger electron spectroscopy, Crystal orientation, deposition, Polycrystalline materials, pyrolysis, scanning electron microscopy, Semiconducting tin compounds, spraying, thin films, X ray crystallography Engineering uncontrolled terms Gas sensing films, Tin dioxide Engineering main heading Semiconducting films |
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