AES STUDY OF THE ADSORPTION OF O2, CO, CO2, AND H2O ON INDIUM.

S. M. Rossnagel, H. F. Dylla, S. A. Cohen

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Abstract

The adsorption of various oxygen-containing gases on clean polycrystalline In has been studied. For the In-O//2 system, the relationship between N (E) areas and dN (E)/dE peak heights for In MNN Auger transition was found to be linear. At saturation, an oxygen/indium ratio of 3/2 was measured, consistent with the formation of the stable oxide In//2O//3. Low-coverage sticking coefficients were found to be similar 0. 014 for O//2, similar 0. 004 for H//2O, similar 2 multiplied by 10** minus **5 for CO, and similar 5 multiplied by 10** minus **5 for CO//2. In each case, chemical shifts and peaks distortions in the N (E) and dN (E)/dE spectra have been measured for the gas-saturated In, the largest being similar 3 eV for the MNN transition of O//2-saturated surface.

Original languageEnglish (US)
Pages (from-to)558-561
Number of pages4
JournalJ VAC SCI TECHNOL
Volume16
Issue number2
DOIs
StatePublished - Jan 1 1979

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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