Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor
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2018
Authors
Vujčić, IvicaGavrilović, Tamara V.
Sekulić, Milica
Mašić, Slobodan
Putić, Slaviša S.
Papan, Jelena
Dramićanin, Miroslav
Article (Published version)
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© 2018 Elsevier B.V.
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Eu3+ activated LaPO4 phosphors were prepared by a high-temperature solid-state method and irradiated to different high-doses gamma-radiation in the 0-4 MGy range. No effects of high-doses of high-energy radiation on phosphor's morphology and structure were observed, as documented by electron microscopy and X-ray diffraction measurements. On the other hand, photoluminescence measurements showed that emission properties of phosphor were affected by gamma-radiation; changes in radiative properties being prominent for absorbed radiation doses up to 250 kGy after which no additional changes are observed. Judd-Ofelt analysis of emission spectra is performed to thoroughly investigate radiative properties of phosphors. Analysis showed that radiative transition probability of Eu3+ emission decreases while non-radiative probability increases upon gamma-irradiation. Quantum efficiency of emission is decreased from about 46% to 35% when Eu3+ doped LaPO4 powders are exposed to gamma-radiation of 25...0 kGy dose, showing no additional decrease for higher gamma-radiation doses.
Keywords:
En(3+) / Judd-Ofelt / radiation effects / phosphors / LaPO4 / quantum efficiency of emissionSource:
Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 2018, 422, 85-90Funding / projects:
- Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
DOI: 10.1016/j.nimb.2018.03.002
ISSN: 0168-583X; 1872-9584
WoS: 000430766100014
Scopus: 2-s2.0-85043363567
URI
http://linkinghub.elsevier.com/retrieve/pii/S0168583X18301666https://vinar.vin.bg.ac.rs/handle/123456789/7669
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VinčaTY - JOUR AU - Vujčić, Ivica AU - Gavrilović, Tamara V. AU - Sekulić, Milica AU - Mašić, Slobodan AU - Putić, Slaviša S. AU - Papan, Jelena AU - Dramićanin, Miroslav PY - 2018 UR - http://linkinghub.elsevier.com/retrieve/pii/S0168583X18301666 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7669 AB - Eu3+ activated LaPO4 phosphors were prepared by a high-temperature solid-state method and irradiated to different high-doses gamma-radiation in the 0-4 MGy range. No effects of high-doses of high-energy radiation on phosphor's morphology and structure were observed, as documented by electron microscopy and X-ray diffraction measurements. On the other hand, photoluminescence measurements showed that emission properties of phosphor were affected by gamma-radiation; changes in radiative properties being prominent for absorbed radiation doses up to 250 kGy after which no additional changes are observed. Judd-Ofelt analysis of emission spectra is performed to thoroughly investigate radiative properties of phosphors. Analysis showed that radiative transition probability of Eu3+ emission decreases while non-radiative probability increases upon gamma-irradiation. Quantum efficiency of emission is decreased from about 46% to 35% when Eu3+ doped LaPO4 powders are exposed to gamma-radiation of 250 kGy dose, showing no additional decrease for higher gamma-radiation doses. T2 - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms T1 - Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor VL - 422 SP - 85 EP - 90 DO - 10.1016/j.nimb.2018.03.002 ER -
@article{ author = "Vujčić, Ivica and Gavrilović, Tamara V. and Sekulić, Milica and Mašić, Slobodan and Putić, Slaviša S. and Papan, Jelena and Dramićanin, Miroslav", year = "2018", abstract = "Eu3+ activated LaPO4 phosphors were prepared by a high-temperature solid-state method and irradiated to different high-doses gamma-radiation in the 0-4 MGy range. No effects of high-doses of high-energy radiation on phosphor's morphology and structure were observed, as documented by electron microscopy and X-ray diffraction measurements. On the other hand, photoluminescence measurements showed that emission properties of phosphor were affected by gamma-radiation; changes in radiative properties being prominent for absorbed radiation doses up to 250 kGy after which no additional changes are observed. Judd-Ofelt analysis of emission spectra is performed to thoroughly investigate radiative properties of phosphors. Analysis showed that radiative transition probability of Eu3+ emission decreases while non-radiative probability increases upon gamma-irradiation. Quantum efficiency of emission is decreased from about 46% to 35% when Eu3+ doped LaPO4 powders are exposed to gamma-radiation of 250 kGy dose, showing no additional decrease for higher gamma-radiation doses.", journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms", title = "Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor", volume = "422", pages = "85-90", doi = "10.1016/j.nimb.2018.03.002" }
Vujčić, I., Gavrilović, T. V., Sekulić, M., Mašić, S., Putić, S. S., Papan, J.,& Dramićanin, M.. (2018). Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 422, 85-90. https://doi.org/10.1016/j.nimb.2018.03.002
Vujčić I, Gavrilović TV, Sekulić M, Mašić S, Putić SS, Papan J, Dramićanin M. Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2018;422:85-90. doi:10.1016/j.nimb.2018.03.002 .
Vujčić, Ivica, Gavrilović, Tamara V., Sekulić, Milica, Mašić, Slobodan, Putić, Slaviša S., Papan, Jelena, Dramićanin, Miroslav, "Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 422 (2018):85-90, https://doi.org/10.1016/j.nimb.2018.03.002 . .