Investigation of SnO 2 thin film evolution by thermoanalytical and spectroscopic methods

E. Horváth, J. Kristóf, H. Nasser, R. L. Frost, A. De Battisti, Á Rédey

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The thermal evolution process of a SnO 2 thin film from SnCl 2 ·2H 2 O precursor dissolved in ethanol was followed by thermogravimetry combined with mass spectrometry (TG-MS), diffuse reflectance Fourier transform infrared spectroscopy (DRIFT) and infrared emission spectrometry (IRES). The precursor salt solution was deposited on a titanium metal sheet. After evaporation of the solvent, the gel-like film was heated in a thermobalance in an oxidative environment to 600 °C. Mass spectrometric ion intensity curves showed the liberation of chlorinated species, alcoholic fragments and CO 2 as combustion product and from the decomposition of surface carbonyls, carboxylates and carbonates. The presence of OH, CH and CO bands in the infrared spectra was confirmed and their assignment was made by the deconvolution of the recorded curves as a function of the firing temperature.

Original languageEnglish
Pages (from-to)13-20
Number of pages8
JournalApplied Surface Science
Volume242
Issue number1-2
DOIs
Publication statusPublished - Mar 31 2005

Keywords

  • Diffuse reflectance infrared spectroscopy (DRIFT)
  • Infrared emission spectroscopy (IRES)
  • Sol-gel process
  • Thermogravimetry-mass spectrometry (TG-MS)
  • Tin oxide thin films

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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