Persistent luminescence and thermoluminescence of UV/VIS -irradiated SrAl<inf>2</inf>O<inf>4</inf>: Eu2+, Dy3+ phosphor

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

doi:10.1016/j.radmeas.2011.07.025

Persistent luminescence and thermoluminescence of UV/VIS -irradiated SrAl<inf>2</inf>O<inf>4</inf>: Eu2+, Dy3+ phosphor

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

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Abstract

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.

Original language	American English
Pages	1417-1420
Number of pages	4
DOIs	https://doi.org/10.1016/j.radmeas.2011.07.025
State	Published - 1 Dec 2011
Event	Radiation Measurements - Duration: 1 Dec 2011 → …

Conference

Conference	Radiation Measurements
Period	1/12/11 → …

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10.1016/j.radmeas.2011.07.025

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

abstract = "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. {\textcopyright} 2011 Elsevier Ltd. All rights reserved.",

author = "C. Pereyda-Pierre and R. Mel{\'e}ndrez and R. Garc{\'i}a and M. Pedroza-Montero and M. Barboza-Flores",

year = "2011",

month = dec,

day = "1",

doi = "10.1016/j.radmeas.2011.07.025",

language = "American English",

pages = "1417--1420",

note = "Radiation Measurements ; Conference date: 01-12-2011",

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TY - CONF

T1 - Persistent luminescence and thermoluminescence of UV/VIS -irradiated SrAl2O4: Eu2+, Dy3+ phosphor

AU - Pereyda-Pierre, C.

AU - Meléndrez, R.

AU - García, R.

AU - Pedroza-Montero, M.

AU - Barboza-Flores, M.

PY - 2011/12/1

Y1 - 2011/12/1

N2 - 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.

AB - 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.

U2 - 10.1016/j.radmeas.2011.07.025

DO - 10.1016/j.radmeas.2011.07.025

M3 - Paper

SP - 1417

EP - 1420

T2 - Radiation Measurements

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ER -

Persistent luminescence and thermoluminescence of UV/VIS -irradiated SrAl<inf>2</inf>O<inf>4</inf>: Eu<sup>2+</sup>, Dy<sup>3+</sup> phosphor

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