Abstract
The ratio of oxygen atoms to ions (O/O + ) generated during electron stimulated desorption (ESD) from V 2 O 5 and oxidized V foil has been investigated. Desorbates were probed directly with high resolution quadrupole mass spectrometry. X-ray photoelectron spectroscopy was used as an indirect probe to measure the ESD induced surface oxygen loss. Despite the number of ESD target preparation methods and experimental variations used, ESD O atoms were never detected. Accordingly, the results are presented as an upper limit to the ESD O/O + ratio, as determined by the neutral detection limit of the given instrumental method. The results of the mass spectral probe were an O/O + ratio of ≃ 54 (oxidized V foil), 58 ( 18 O 2 /V 2 O 5 ) and 160 (V 2 O 5 ). From the XPS results (oxidized V foil) the ratio was determined to be ≃ 4.
Original language | English |
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Pages (from-to) | 23-32 |
Number of pages | 10 |
Journal | Applied Surface Science |
Volume | 108 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 1997 |
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Surfaces, Coatings and Films