Unexpected luminescence of Cr5+ and Cr3+ ions in ZrSiO4 zircon crystals

Citation
M. Gaft et al., Unexpected luminescence of Cr5+ and Cr3+ ions in ZrSiO4 zircon crystals, J LUMINESC, 87-9, 2000, pp. 1118-1121
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF LUMINESCENCE
ISSN journal
00222313 → ACNP
Volume
87-9
Year of publication
2000
Pages
1118 - 1121
Database
ISI
SICI code
0022-2313(200005)87-9:<1118:ULOCAC>2.0.ZU;2-V
Abstract
Luminescence, decay-times and EPR spectroscopy of Cr-doped ZrSiO4 show the presence of both Cr3+ and Cr5+ active centers, which can be connected with Zr4+ and Si4+ adjacent two-cation replacement. Cr5+ emission occurs within a similar spectral range as for Cr4+ and hence confusion is possible. (C) 2 000 Elsevier Science B.V. All rights reserved.