The role of Eu3+ ion on luminescence, TL kinetic parameters and electrochemical behaviors of Sr0,5Ca0,5WO4 phosphor synthesized via sol-gel technique

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dc.authorid0000-0001-8849-4364en_US
dc.authorscopusid57202496517en_US
dc.contributor.authorKati, Mehmet İsmail
dc.contributor.authorKeskin, İlker Çetin
dc.contributor.authorTüremiş, Murat
dc.date.accessioned2022-04-21T06:45:55Z
dc.date.available2022-04-21T06:45:55Z
dc.date.issued2021en_US
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Fizik Bölümüen_US
dc.description.abstractThe Eu3+doped Sr0,5Ca0,5WO4 has been synthesized by the sol-gel method for the first time. The phosphors were analyzed by XRD, SEM, DTA/TG optical absorption spectra, radioluminescence (RL), photoluminescence (PL), and thermoluminescence (TL) spectra. The energy transfer mechanism was determined on Eu3+ doped Sr0,5Ca0,5WO4 phosphor. The XRD results reveal that the samples exhibit a tetragonal scheelite structure. FT-IR spectra provide the proof of scheelite structure with W-O anti-symmetric stretching vibration in [WO4]2- tetrahedrons at 750-910 cm-1. The Sr0,5Ca0,5WO4 phosphor showed a broad emission between 350-750 nm with a maximum of 506 nm. Sr0,5Ca0,5WO4:0.5Eu3+ phosphor exhibit characteristic emissions of Eu+3 (545, 592, 614, 650, and 700 nm) in the RL spectrum. The host material has excellent energy transfer efficiency for lanthanide ions. The kinetic parameters were calculated by the computerized glow curve deconvolution (CGCD) analysis method. As a result of CGCD, three peaks (Etrap:0.74-1.46 eV) for un-doped Sr0,5Ca0,5WO4 and five peaks (Etrap:0.75-1.28 eV) for Sr0,5Ca0,5WO4: Eu3+ were determined under main TL glow curve. In the cyclic voltammogram of the doped sample, an oxidation peak of about-0.4 eV, which is thought to be derived from Eu3+, was observed. Based on the results, the Sr0,5Ca0,5WO4:Eu+3 phosphors may be potential applicants for LEDs.en_US
dc.identifier.doi10.31202/ecjse.833068en_US
dc.identifier.endpage267en_US
dc.identifier.issue1en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage254en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12885/1966
dc.identifier.volume8en_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorTüremiş, Murat
dc.language.isoenen_US
dc.publisherTUBITAKen_US
dc.relation.ispartofEl-Cezeri Journal of Science and Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectKinetic parametersen_US
dc.subjectLuminescenceen_US
dc.subjectRare earth dopingen_US
dc.subjectSol-gel methoden_US
dc.titleThe role of Eu3+ ion on luminescence, TL kinetic parameters and electrochemical behaviors of Sr0,5Ca0,5WO4 phosphor synthesized via sol-gel techniqueen_US
dc.title.alternativeSol-jel tekniği ile sentezlenmiş Sr0,5Ca0,5WO4 fosforunda Eu3+ iyonunun lüminesans, TL kinetik parametreler ve elektrokimyasal davranışındaki rolüen_US
dc.typeArticleen_US

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