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Gamma-radiation effects on luminescence properties of Eu3+ activated LaPO4 phosphor
dc.creator | Vujčić, Ivica | |
dc.creator | Gavrilović, Tamara V. | |
dc.creator | Sekulić, Milica | |
dc.creator | Mašić, Slobodan | |
dc.creator | Putić, Slaviša | |
dc.creator | Papan, Jelena | |
dc.creator | Dramićanin, Miroslav | |
dc.date.accessioned | 2021-03-10T13:53:19Z | |
dc.date.available | 2021-03-10T13:53:19Z | |
dc.date.issued | 2018 | |
dc.identifier.issn | 0168-583X | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4039 | |
dc.description.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. | en |
dc.publisher | Elsevier Science Bv, Amsterdam | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45020/RS// | |
dc.rights | restrictedAccess | |
dc.source | Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Ato | |
dc.subject | Judd-Ofelt | en |
dc.subject | Radiation effects | en |
dc.subject | Phosphors | en |
dc.subject | En(3+) | en |
dc.subject | LaPO4 | en |
dc.subject | Quantum efficiency of emission | en |
dc.title | Gamma-radiation effects on luminescence properties of Eu3+ activated LaPO4 phosphor | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.epage | 90 | |
dc.citation.other | 422: 85-90 | |
dc.citation.rank | M22 | |
dc.citation.spage | 85 | |
dc.citation.volume | 422 | |
dc.identifier.doi | 10.1016/j.nimb.2018.03.002 | |
dc.identifier.scopus | 2-s2.0-85043363567 | |
dc.identifier.wos | 000430766100014 | |
dc.type.version | publishedVersion |