Prompt isothermal decay properties of the Sr4Al14O25 co-doped with Eu2+ and Dy3+ persistent luminescent phosphor

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dc.contributor.authorAsal E.K.
dc.contributor.authorPolymeris G.S.
dc.contributor.authorGultekin S.
dc.contributor.authorKitis G.
dc.date.accessioned2024-07-22T08:09:38Z
dc.date.available2024-07-22T08:09:38Z
dc.date.issued2018
dc.description.abstractThermoluminescence (TL) techniques are very useful in the research of the persistent Luminescence (PL) phosphors research. It gives information about the existence of energy levels within the forbidden band, its activation energy, kinetic order, lifetime etc. The TL glow curve of Sr4Al14O25:Eu2+,Dy3+ persistent phosphor, consists of two well separated glow peaks. The TL techniques used to evaluate activation energy were the initial rise, prompt isothermal decay (PID) of TL of each peak at elevated temperatures and the glow – curve fitting. The behavior of the PID curves of the two peak is very different. According to the results of the PID procedure and the subsequent data analysis it is suggested that the mechanism behind the low temperature peak is a delocalized transition. On the other hand the mechanism behind the high temperature peak is localized transition involving a tunneling recombination between electron trap and luminescence center. © 2018 Elsevier B.V.
dc.identifier.DOI-ID10.1016/j.nimb.2018.04.010
dc.identifier.issn0168583X
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/14889
dc.language.isoEnglish
dc.publisherElsevier B.V.
dc.subjectActivation energy
dc.subjectAluminum compounds
dc.subjectCurve fitting
dc.subjectDysprosium compounds
dc.subjectEuropium compounds
dc.subjectIsotherms
dc.subjectPhosphors
dc.subjectStrontium compounds
dc.subjectTemperature
dc.subjectDelocalized transition
dc.subjectElevated temperature
dc.subjectHigh temperature peaks
dc.subjectIsothermal decay
dc.subjectLocalized transition
dc.subjectPersistent luminescence
dc.subjectSubsequent data analysis
dc.subjectTunneling recombination
dc.subjectThermoluminescence
dc.titlePrompt isothermal decay properties of the Sr4Al14O25 co-doped with Eu2+ and Dy3+ persistent luminescent phosphor
dc.typeArticle

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