Resumen
The persistent luminescence and thermoluminescence properties of SrAl 2O4: Eu2+, Dy3+ phosphors excited with UV-VIS light in the 200-500 nm region were investigated. The thermoluminescence glow curve was found to be composed of peaks around 70, 125 and 245 °C. The persistent luminescence and thermoluminescence excitation spectra exhibited a broad band around 300-500 nm centered at 400 and 420 nm respectively. A linear behavior of the integrated thermoluminescence intensity and persistent luminescence versus irradiation time was found for the first 60 s. The charge detrapping from the 70 °C trapping levels was the major contributor to the observed persistent luminescence at room temperature. The SrAl2O4: Eu2+, Dy3+ phosphors have suitable properties to be applied as storage and persistent luminescence UV-VIS irradiation dose phosphor. © 2011 Elsevier Ltd. All rights reserved.
Idioma original | Inglés estadounidense |
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Páginas | 1417-1420 |
Número de páginas | 4 |
DOI | |
Estado | Publicada - 1 dic 2011 |
Evento | Radiation Measurements - Duración: 1 dic 2011 → … |
Conferencia
Conferencia | Radiation Measurements |
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Período | 1/12/11 → … |