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Title: Radioluminescence and thermoluminescence of rare earth element and phosphorus-doped zircon

Abstract

The radioluminescence and thermoluminescence spectra of synthetic zircon crystals doped with individual trivalent rare earth element (REE) ions (Pr, Sm, Eu, Gd, Dy, Ho, Er, and Yb) and P are reported in the temperature range 25 to 673 K. Although there is some intrinsic UV/blue emission from the host lattice, the dominant signals are from the rare-earth sites, with signals characteristic of the REE{sup 3+} states. The shapes of the glow curves are different for each dopant, and there are distinct differences between glow peak temperatures for different rare-earth lines of the same element. Within the overall set of signals there are indications of linear trends in which some glow peak temperatures vary as a function of the ionic size of the rare earth ions. The temperature shifts of the peaks are considerable, up to 200{degree}, and much larger than those cited in other rare-earth-doped crystals of LaF{sub 3} and Bi{sub 4}Ge{sub 3}O{sub 12}. The data clearly suggest that the rare-earth ions are active both in the trapping and luminescence steps, and hence the TL occurs within localized defect complexes that include REE{sup 3+} ions.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Univ. of Sussex (GB)
OSTI Identifier:
20076087
Resource Type:
Journal Article
Journal Name:
American Mineralogist
Additional Journal Information:
Journal Volume: 85; Journal Issue: 5-6; Other Information: PBD: May-Jun 2000; Journal ID: ISSN 0003-004X
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ZIRCON; RADIOLUMINESCENCE; THERMOLUMINESCENCE; DOPED MATERIALS; PHOSPHORUS; RARE EARTHS; CRYSTAL DEFECTS

Citation Formats

Karali, T., Can, N., Townsend, P.D., Rowlands, A.P., and Hanchar, J.M. Radioluminescence and thermoluminescence of rare earth element and phosphorus-doped zircon. United States: N. p., 2000. Web. doi:10.2138/am-2000-5-603.
Karali, T., Can, N., Townsend, P.D., Rowlands, A.P., & Hanchar, J.M. Radioluminescence and thermoluminescence of rare earth element and phosphorus-doped zircon. United States. doi:10.2138/am-2000-5-603.
Karali, T., Can, N., Townsend, P.D., Rowlands, A.P., and Hanchar, J.M. Thu . "Radioluminescence and thermoluminescence of rare earth element and phosphorus-doped zircon". United States. doi:10.2138/am-2000-5-603.
@article{osti_20076087,
title = {Radioluminescence and thermoluminescence of rare earth element and phosphorus-doped zircon},
author = {Karali, T. and Can, N. and Townsend, P.D. and Rowlands, A.P. and Hanchar, J.M.},
abstractNote = {The radioluminescence and thermoluminescence spectra of synthetic zircon crystals doped with individual trivalent rare earth element (REE) ions (Pr, Sm, Eu, Gd, Dy, Ho, Er, and Yb) and P are reported in the temperature range 25 to 673 K. Although there is some intrinsic UV/blue emission from the host lattice, the dominant signals are from the rare-earth sites, with signals characteristic of the REE{sup 3+} states. The shapes of the glow curves are different for each dopant, and there are distinct differences between glow peak temperatures for different rare-earth lines of the same element. Within the overall set of signals there are indications of linear trends in which some glow peak temperatures vary as a function of the ionic size of the rare earth ions. The temperature shifts of the peaks are considerable, up to 200{degree}, and much larger than those cited in other rare-earth-doped crystals of LaF{sub 3} and Bi{sub 4}Ge{sub 3}O{sub 12}. The data clearly suggest that the rare-earth ions are active both in the trapping and luminescence steps, and hence the TL occurs within localized defect complexes that include REE{sup 3+} ions.},
doi = {10.2138/am-2000-5-603},
journal = {American Mineralogist},
issn = {0003-004X},
number = 5-6,
volume = 85,
place = {United States},
year = {2000},
month = {6}
}