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Title: Oxidation of SnO to SnO{sub 2} thin films in boiling water at atmospheric pressure

We demonstrated that SnO is oxidized to SnO{sub 2} in boiling water. (001)-oriented SnO thin films were pulsed-laser deposited onto a glass substrate. The Sn valence number changed from (II) to (IV) by keeping SnO films in boiling water at atmospheric pressure for 5 h. Optical transparency of the obtained SnO{sub 2} films was greater than 95% in the visible light range. The SnO{sub 2} films possessed an amorphous structure, and exhibited dielectric properties. Atomic force microscopy and Fourier transform infrared spectroscopy revealed granular structures and the existence of –OH groups, which may account for the diffusion of oxidants within the film.
Authors:
; ; ; ;  [1]
  1. Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505 (Japan)
Publication Date:
OSTI Identifier:
22283043
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION SPECTROSCOPY; AMORPHOUS STATE; ATOMIC FORCE MICROSCOPY; BOILING; DIELECTRIC PROPERTIES; DIFFUSION; FOURIER TRANSFORMATION; GLASS; LASER RADIATION; OPACITY; OXIDATION; SUBSTRATES; THIN FILMS; TIN OXIDES; VALENCE; VISIBLE RADIATION; WATER