Applied Physics A

, Volume 81, Issue 4, pp 721–723

Preparation and structural characterization of nanocrystalline SnO2 powders

Article

Abstract

Nanocrystalline SnO2 powders have been prepared by solid–liquid reaction and solid-state thermal oxidizing techniques. The microstructures and phase compositions of the product were characterized by thermogravimetry analysis, X-ray diffraction, and the Raman spectrum. It is shown that at least two phases, SnO2 and SnOx, coexist at 450 °C. However, only the tetragonal rutile structure SnO2 phase is detected after the Sn powders were annealed at 550 °C. The Raman peaks of the nanocrystalline SnO2 powders reveal remarkable red shift and broadening, which could be attributed to the phonon confinement effect, oxygen vacancies, and the stress effect.

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Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • M.J. Zheng
    • 1
  • L. Ma
    • 1
  • W.L. Xu
    • 1
  • G.Q. Ding
    • 1
  • W.Z. Shen
    • 1
  1. 1.Laboratory of Condensed Matter Spectroscopy and Opto-Electronic Physics, Department of PhysicsShanghai Jiao Tong UniversityShanghaiChina

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