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Valence-band x-ray photoelectron spectroscopic studies of different forms of sodium phosphate
- Source :
- Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 21:1126-1132
- Publication Year :
- 2003
- Publisher :
- American Vacuum Society, 2003.
-
Abstract
- This article reports the valence-band x-ray photoelectron spectroscopy (XPS) of various forms of sodium phosphate. Valence-band spectra are compared to spectra generated from cluster and band-structure calculations. Five different forms of sodium phosphate are studied as follows, Na4P2O7, Na5P3O10, Na4P4O12, Na2H2P2O7, and NaH2PO2. Core-level XPS studies are of little use for differentiating between such similar compounds while valence band photoemission has been found to be particularly effective at identifying subtle differences in surface chemistry. The results indicate that the valence-band region clearly distinguishes between these different phosphates and that these differences can be predicted by spectra generated from both cluster and band-structure calculations.
- Subjects :
- Chemistry
Sodium
Analytical chemistry
X-ray
chemistry.chemical_element
Surfaces and Interfaces
Condensed Matter Physics
Phosphate
Spectral line
Surfaces, Coatings and Films
Condensed Matter::Materials Science
chemistry.chemical_compound
Crystallography
X-ray photoelectron spectroscopy
Physics::Atomic and Molecular Clusters
Cluster (physics)
Valence band
Condensed Matter::Strongly Correlated Electrons
Subjects
Details
- ISSN :
- 15208559 and 07342101
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films
- Accession number :
- edsair.doi...........da783f5ca770ec12ef27fc0e49516209
- Full Text :
- https://doi.org/10.1116/1.1575221