Effect of Codoping on the R-Line Luminescence of Cr3+-Doped Alumina

The frequency of the R‐line luminescence from Cr3+ ions in aluminum oxide is known to be sensitive to chromium concentration, stress, and temperature. In this work, the effect of simultaneously doping aluminum oxide with both Cr3+ and other ions (Fe, Ti, Ni, or Y) on the R‐line frequency and intensi...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2002-08, Vol.85 (8), p.1966-1970
Main Authors: Yu, Haijiang, Clarke, David R.
Format: Article
Language:English
Subjects:
Alumina
chromium
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dopants/doping
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other solid inorganic materials
Photoluminescence
Physics
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Summary:The frequency of the R‐line luminescence from Cr3+ ions in aluminum oxide is known to be sensitive to chromium concentration, stress, and temperature. In this work, the effect of simultaneously doping aluminum oxide with both Cr3+ and other ions (Fe, Ti, Ni, or Y) on the R‐line frequency and intensity at room temperature is investigated. It is concluded that ions soluble in aluminum oxide cause systematic shifts in the luminescence frequency and intensity whereas those ions that are insoluble have no effect on the R‐line luminescence. In addition, it is shown that contrary to previous investigations, the ratio of the N1 to R line intensities is not simply related to the chromium concentration and hence cannot be used as a measure of the chromium concentration.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.2002.tb00389.x