Structure of heterosystems formed by a SnO2 film and island metal (Ag, Au, or Pd) condensate

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• 作者：V. M. Ievlev ; S. B. Kushchev ; A. A. Sinel’nikov ; S. A. Soldatenko…
• 刊名：Inorganic Materials
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：52
• 期：7
• 页码：700-707
• 全文大小：1,305 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Inorganic Chemistry
  Industrial Chemistry and Chemical Engineering
  Materials Science
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1608-3172
• 卷排序：52

文摘

We have studied the phase composition and microstructure of thin tin(IV) oxide films surfacemodified with silver, gold, and palladium nanoislands. Using high-energy electron diffraction, we have shown for the first time that the thermal oxidation of the Sn films leads to the formation of nanocrystalline multiphase SnO₂ films in which the major phase is orthorhombic. Also present are (in order of decreasing content) tetragonal and cubic phases. Blocks of SnO₂(O) subgrains with 〈101〉 texture contain dislocations and stacking faults, which are interpreted as layers of the tetragonal phase. It has been shown that vacuum condensation makes it possible to modify the surface of SnO₂ films with noble metals and obtain homogeneous nanoisland coatings characterized by a unimodal, uniform island size distribution.Keywordsgas sensorssemiconducting metal oxidesmicrostructurethin filmstin(IV) oxidemetal nanoislandshigh-energy electron diffractiontransmission electron microscopy