Persistent luminescence and thermoluminescence of UV/VIS -irradiated SrAl2O4: Eu2+, Dy3+ phosphor

C. Pereyda-Pierre, R. Meléndrez, R. García, M. Pedroza-Montero, M. Barboza-Flores*

*Autor correspondiente de este trabajo

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

12 Citas (Scopus)

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.

Idioma originalInglés
Páginas (desde-hasta)1417-1420
Número de páginas4
PublicaciónRadiation Measurements
Volumen46
N.º12
DOI
EstadoPublicada - dic. 2011

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