Abstract
Processes of the interaction of oxygen atoms of the thermal energy with the surface of powder Y2O3-based luminophors have been studied. The effect of the fast diffusion migration of oxygen atoms into the bulk of Y2O3, where a significant amount of anion vacancies is contained, was found. The activation energy of diffusion input and output of atomic oxygen into/from Y2O3 is equal to (0.7±0.1) eV. The variation of the concentration of oxygen atoms in the bulk of Y2O3-Bi and other luminophors causes quenching of photoluminescence of these phosphors when they are oxygenated. This effect can be used for the development of sensitive selective oxygen sensors.
| Original language | English |
|---|---|
| Pages (from-to) | 959-969 |
| Number of pages | 11 |
| Journal | Surface Investigation X-Ray, Synchrotron and Neutron Techniques |
| Volume | 16 |
| Issue number | 6 |
| Publication status | Published - 2001 |
ASJC Scopus subject areas
- Surfaces and Interfaces
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Styrov, V. V., Tyurin, Y. I., Shigalugov, S. K., & Smekalina, T. V. (2001). Quenching of luminescence of phosphors in the atmosphere of oxygen-containing gases. Surface Investigation X-Ray, Synchrotron and Neutron Techniques, 16(6), 959-969.