Rare Earth Photoluminescence in Bismuth-Germanate Crystals

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dc.contributor.authorArslanlar, Y. Tuncer
dc.contributor.authorKotan, Z.
dc.contributor.authorKibar, R.
dc.contributor.authorCanimoglu, A.
dc.contributor.authorCan, N.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2013
dc.departmentNiğde ÖHÜ
dc.description.abstractIn the present work, the photoluminescence (PL) spectra of bismuth germanate (BGO) doped with trivalent rare earth element (REE) ions with different doping concentrations (0.03wt% Eu, 0.4wt% Tm, and 1.1wt% Nd) are reported in the temperature range from 10 to 300K using different detectors, namely, photomultiplier tube (PMT), InGaAs (IGA), and Si. The luminescence in the NIR region was also measured at room temperature. Two broad emission bands attributed to undoped BGO were found at circa 1350 and 1800nm, respectively. The broad-band emissions are replaced by narrow-band line emissions defined by the trivalent rare earth dopants. The emission spectra from rare earth ion-doped BGO extend from 500 to 2000nm. Rare earth ions act as the dominant recombination centers and define the emission spectra. This is interpreted as resulting from direct charge transfer from intrinsic defect traps to rare earth recombination centers. The temperature-dependent luminescence of BGO doped with 0.4wt% Tm is also presented.
dc.identifier.doi10.1080/00387010.2013.771370
dc.identifier.endpage596
dc.identifier.issn0038-7010
dc.identifier.issue8
dc.identifier.scopus2-s2.0-84880411466
dc.identifier.scopusqualityQ3
dc.identifier.startpage590
dc.identifier.urihttps://dx.doi.org/10.1080/00387010.2013.771370
dc.identifier.urihttps://hdl.handle.net/11480/4323
dc.identifier.volume46
dc.identifier.wosWOS:000321811900006
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherTAYLOR & FRANCIS INC
dc.relation.ispartofSPECTROSCOPY LETTERS
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBi-4(GeO4)(3)
dc.subjectphotoluminescence
dc.subjectrare earth
dc.titleRare Earth Photoluminescence in Bismuth-Germanate Crystals
dc.typeArticle

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