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Effects of Li+ co-doping on properties of Eu3+ activated TiO2 anatase nanoparticles
dc.creator | Milićević, Bojana R. | |
dc.creator | Đorđević, Vesna R. | |
dc.creator | Vuković, Katarina | |
dc.creator | Dražić, Goran | |
dc.creator | Dramićanin, Miroslav | |
dc.date.accessioned | 2018-03-01T17:57:09Z | |
dc.date.available | 2018-03-01T17:57:09Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 0925-3467 | |
dc.identifier.issn | 1873-1252 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/1799 | |
dc.description.abstract | Sol-gel technique for the synthesis of anatase TiO2 at 420 degrees C produces nanocrystals of 10-20 nm in size with Ti4+ in crystal volume and Ti3+ at terminal planes of the crystal. The study of Li+ co-doping effects on the structure, morphology, absorption, and luminescence of Eu3+ activated TiO2 anatase nanocrystals is presented. Pure anatase structure is achieved up to 9 at.% Li, with significant improvement in crystallinity of europium doped anatase TiO2. The Li+ co-doping reduces the unit cell volume of the crystal, induces the blue shift of the absorption edge, lengthens the lifetime of Eu3+ D-5(0) excited state, and improves the Eu3+ emission intensity up to 37.5%. Judd-Ofelt analysis of Eu3+ emission showed enhancement of quantum efficiency from 66.4% to 98.7% when TiO2:Eu3+ was co-doped with 9 at.% of Li. (C) 2017 Elsevier B.V. All rights reserved. | en |
dc.relation | info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172056/RS// | |
dc.rights | restrictedAccess | en |
dc.source | Optical Materials | en |
dc.subject | TiO2 | en |
dc.subject | Europium emission | en |
dc.subject | Lithium co-doping | en |
dc.subject | Judd-Ofelt | en |
dc.title | Effects of Li+ co-doping on properties of Eu3+ activated TiO2 anatase nanoparticles | en |
dc.type | article | en |
dc.rights.license | ARR | |
dcterms.abstract | Вуковиц, Катарина; Милићевић Бојана; Дразиц, Горан; Ђорђевић Весна; Драмићанин Мирослав; | |
dc.citation.volume | 72 | |
dc.citation.spage | 316 | |
dc.citation.epage | 322 | |
dc.identifier.wos | 000413880500048 | |
dc.identifier.doi | 10.1016/j.optmat.2017.06.029 | |
dc.citation.rank | M22 | |
dc.type.version | publishedVersion | |
dc.identifier.scopus | 2-s2.0-85020938509 |