Effect of oxygen deficiency on the Raman spectra and hyperfine interactions of nanometer SnO2

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)831-835
Journal / PublicationNanostructured Materials
Volume11
Issue number7
Publication statusPublished - Oct 1999

Abstract

The Raman and Moessbauer spectra of nano-SnO2 specimens with crystallite size 3-16 nm were measured at room temperature. Specimens were annealed at different temperatures in oxygen atmosphere and vacuum respectively. Both the Raman and Moessbauer spectra of the specimens consist of crystalline and interface (or surface) components. The effects of oxygen deficiency on the Raman spectra are presented and correlated with the changes of the Sn-O bond properties, which were obtained from the corresponding Moessbauer spectra.