X-Ray Photoelectron Spectroscopic Studies of Cadmium- and Silver-Oxygen Surfaces

J. S. Hammond, S. W. Gaarenstroom, Nicholas Winograd

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Abstract

The surface chemistry of the Cd- and Ag-oxygen systems has been studied by X-ray photoelectron spectroscopy (XPS or ESCA) using both temperature changes and ion bombardment techniques as methods of inducing structural changes. For the Cd system, the O 1s binding energies for CdO, Cd(OH)2, CdCO3, and CdO2 have been characterized and have been used to follow the decomposition of these species as a function of temperature. For oxygen-exposed evaporated films of Cd, two distinct oxygen phases were noted with one being specifically identified as CdO. For the Ag system, the O 1s binding energies of AgO, Ag2O, and Ag2CO3 were reported. On the oxides prepared In air, a significant carbonate contaminant was noted which complicated the interpretation of the O 1s spectra. For oxygen-exposed evaporated Ag films, no oxide phases were noted even at high oxygen exposures although a broad, structureless background, probably corresponding to absorbed oxygen, was observed.

Original languageEnglish (US)
Pages (from-to)2193-2199
Number of pages7
JournalAnalytical chemistry
Volume47
Issue number13
DOIs
StatePublished - Nov 1 1975

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Photoelectrons
Cadmium
Silver
Oxygen
X rays
Binding energy
X ray photoelectron spectroscopy
Carbonates
Ion bombardment
Surface chemistry
Oxides
Oxide films
Impurities
Decomposition
Temperature
Air

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

Cite this

Hammond, J. S. ; Gaarenstroom, S. W. ; Winograd, Nicholas. / X-Ray Photoelectron Spectroscopic Studies of Cadmium- and Silver-Oxygen Surfaces. In: Analytical chemistry. 1975 ; Vol. 47, No. 13. pp. 2193-2199.
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abstract = "The surface chemistry of the Cd- and Ag-oxygen systems has been studied by X-ray photoelectron spectroscopy (XPS or ESCA) using both temperature changes and ion bombardment techniques as methods of inducing structural changes. For the Cd system, the O 1s binding energies for CdO, Cd(OH)2, CdCO3, and CdO2 have been characterized and have been used to follow the decomposition of these species as a function of temperature. For oxygen-exposed evaporated films of Cd, two distinct oxygen phases were noted with one being specifically identified as CdO. For the Ag system, the O 1s binding energies of AgO, Ag2O, and Ag2CO3 were reported. On the oxides prepared In air, a significant carbonate contaminant was noted which complicated the interpretation of the O 1s spectra. For oxygen-exposed evaporated Ag films, no oxide phases were noted even at high oxygen exposures although a broad, structureless background, probably corresponding to absorbed oxygen, was observed.",
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X-Ray Photoelectron Spectroscopic Studies of Cadmium- and Silver-Oxygen Surfaces. / Hammond, J. S.; Gaarenstroom, S. W.; Winograd, Nicholas.

In: Analytical chemistry, Vol. 47, No. 13, 01.11.1975, p. 2193-2199.

Research output: Contribution to journalArticle

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AB - The surface chemistry of the Cd- and Ag-oxygen systems has been studied by X-ray photoelectron spectroscopy (XPS or ESCA) using both temperature changes and ion bombardment techniques as methods of inducing structural changes. For the Cd system, the O 1s binding energies for CdO, Cd(OH)2, CdCO3, and CdO2 have been characterized and have been used to follow the decomposition of these species as a function of temperature. For oxygen-exposed evaporated films of Cd, two distinct oxygen phases were noted with one being specifically identified as CdO. For the Ag system, the O 1s binding energies of AgO, Ag2O, and Ag2CO3 were reported. On the oxides prepared In air, a significant carbonate contaminant was noted which complicated the interpretation of the O 1s spectra. For oxygen-exposed evaporated Ag films, no oxide phases were noted even at high oxygen exposures although a broad, structureless background, probably corresponding to absorbed oxygen, was observed.

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