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

doi:10.1016/j.radmeas.2011.07.025

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 revista › Artículo › revisión exhaustiva

13 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 original	Inglés
Páginas (desde-hasta)	1417-1420
Número de páginas	4
Publicación	Radiation Measurements
Volumen	46
N.º	12
DOI	https://doi.org/10.1016/j.radmeas.2011.07.025
Estado	Publicada - dic. 2011

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10.1016/j.radmeas.2011.07.025

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@article{887f638a17b347268e3385f59e6da1ce,

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.",

keywords = "Afterglow, Persistent luminescence, Persistent phosphor, Strontium aluminates, Thermoluminescence",

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

note = "Funding Information: The Universidad de Sonora (M{\'e}xico) kindly acknowledges the transfer of the SrAl 2 O 4 : Eu 2+ , Dy 3+ PLP from University of Georgia. These phosphors materials are covered by US Patents 6,117,362 and 6,267,911 as well as others Pending Patent Applications assigned to the University of Georgia Research Foundation, Inc. The financial support from Conacyt, (M{\'e}xico) grants No. 36521 , 123904 , P/MAA-2009-17 and 37641 , and SEP (M{\'e}xico) is greatly acknowledged.",

year = "2011",

month = dec,

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

language = "Ingl{\'e}s",

volume = "46",

pages = "1417--1420",

journal = "Radiation Measurements",

issn = "1350-4487",

publisher = "Elsevier Ltd",

number = "12",

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T2 - Eu2+, Dy3+ phosphor

AU - Pereyda-Pierre, C.

AU - Meléndrez, R.

AU - García, R.

AU - Pedroza-Montero, M.

AU - Barboza-Flores, M.

N1 - Funding Information: The Universidad de Sonora (México) kindly acknowledges the transfer of the SrAl 2 O 4 : Eu 2+ , Dy 3+ PLP from University of Georgia. These phosphors materials are covered by US Patents 6,117,362 and 6,267,911 as well as others Pending Patent Applications assigned to the University of Georgia Research Foundation, Inc. The financial support from Conacyt, (México) grants No. 36521 , 123904 , P/MAA-2009-17 and 37641 , and SEP (México) is greatly acknowledged.

PY - 2011/12

Y1 - 2011/12

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.

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.

KW - Afterglow

KW - Persistent luminescence

KW - Persistent phosphor

KW - Strontium aluminates

KW - Thermoluminescence

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