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dc.creatorVujčić, Ivica
dc.creatorGavrilović, Tamara V.
dc.creatorSekulić, Milica
dc.creatorMašić, Slobodan
dc.creatorPutić, Slaviša S.
dc.creatorPapan, Jelena
dc.creatorDramićanin, Miroslav
dc.date.accessioned2018-06-21T11:32:42Z
dc.date.available2018-06-21T11:32:42Z
dc.date.issued2018
dc.identifier.issn0168-583X (print)
dc.identifier.issn1872-9584 (electronic)
dc.identifier.urihttp://linkinghub.elsevier.com/retrieve/pii/S0168583X18301666
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/7669
dc.description.abstractEu3+ 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.
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45020/RS//
dc.rightsrestrictedAccess
dc.sourceNuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atomsen
dc.subjectEn(3+)en
dc.subjectJudd-Ofelten
dc.subjectradiation effectsen
dc.subjectphosphorsen
dc.subjectLaPO4en
dc.subjectquantum efficiency of emissionen
dc.titleGamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphoren
dc.typearticleen
dc.rights.licenseARR
dcterms.abstractВујчић, Ивица; Папан, Јелена; Путић, Славиша; Секулић, Милица; Машић, Слободан; Драмићанин, Мирослав Д.; Гавриловић, Тамара;
dc.rights.holder© 2018 Elsevier B.V.
dc.citation.volume422
dc.citation.spage85
dc.citation.epage90
dc.identifier.wos000430766100014
dc.identifier.doi10.1016/j.nimb.2018.03.002
dc.type.versionpublishedVersion
dc.identifier.scopus2-s2.0-85043363567


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