Synthesis and photoluminescence characteristics of a novel Eu and Tb doped Li2MoO4 phosphor

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dc.contributor.authorSouadi G.
dc.contributor.authorKaynar U.H.
dc.contributor.authorAyvacikli M.
dc.contributor.authorCoban M.B.
dc.contributor.authorOglakci M.
dc.contributor.authorCanimoglu A.
dc.contributor.authorCan N.
dc.date.accessioned2024-07-22T08:05:42Z
dc.date.available2024-07-22T08:05:42Z
dc.date.issued2021
dc.description.abstractLi2MoO4:x Eu3+ and Li2MoO4:xTb3+ phosphors, where x = 0.5, 1, 2, 3, 5 and 7 wt%, were synthesized through a gel-combustion method. The XRD data reveals that Eu3+ and Tb3+ doped Li2MoO4 phosphors exhibit a Rhombohedral structure belonging to the space group R3 which matched well with the standard JCPDS files (No.012-0763). We present photoluminescence (PL) spectra from Eu and Tb doped Li2MoO4 under 349 nm Nd:YLF pulses laser excitation over the temperature range of 10–300 K. Undoped Li2MoO4 shows a wide broad band around 600 nm because of the intrinsic PL emission of tetrahedral of MoO42− which was in good agreement with previous findings. Under the excitation of 394 nm, the as-synthesized phosphors exhibited sharp and strong intensity PL emission signals in the red (612 nm, 5D0→7F2 transition) and green (544 nm, 5D4→7F5 transition), respectively. The critical doping concentration of Eu3+ and Tb3+ ions in the Li2MoO4 were estimated to be 2 wt%. The concentration quenching phenomena were discussed, and the critical distances for energy transfer have also been evaluated by the concentration quenching. © 2021 Elsevier Ltd
dc.identifier.DOI-ID10.1016/j.apradiso.2021.109820
dc.identifier.issn09698043
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/13234
dc.language.isoEnglish
dc.publisherElsevier Ltd
dc.subjectCombustion
dc.subjectEnergy transfer
dc.subjectEuropium
dc.subjectLaser excitation
dc.subjectPhosphors
dc.subjectQuenching
dc.subjecteuropium
dc.subjectgel
dc.subjectlithium derivative
dc.subjectlithium fluoride
dc.subjectlithium molybdate
dc.subjectmolybdenum
dc.subjectneodymium
dc.subjectphosphorus
dc.subjectterbium
dc.subjectunclassified drug
dc.subjectyttrium
dc.subjectConcentration quenching
dc.subjectCritical distance
dc.subjectGel-combustion method
dc.subjectLi$++$
dc.subjectPhotoluminescence characteristics
dc.subjectPhotoluminescence emission
dc.subjectRhombohedral structures
dc.subjectSynthesised
dc.subjectTb-doped
dc.subjectXRD
dc.subjectArticle
dc.subjectchemical structure
dc.subjectcombustion
dc.subjectconcentration (parameter)
dc.subjectcontrolled study
dc.subjectenergy transfer
dc.subjectphotochemical quenching
dc.subjectphotoluminescence
dc.subjectsynthesis
dc.subjecttemperature
dc.subjectX ray powder diffraction
dc.subjectPhotoluminescence
dc.titleSynthesis and photoluminescence characteristics of a novel Eu and Tb doped Li2MoO4 phosphor
dc.typeArticle

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