Effects of Li+ co-doping on properties of Eu3+ activated TiO2 anatase nanoparticles
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2017
Authors
Milićević, Bojana R.Đorđević, Vesna R.
Vuković, Katarina
Dražić, Goran
Dramićanin, Miroslav
Article (Published version)
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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.
Keywords:
TiO2 / Europium emission / Lithium co-doping / Judd-OfeltSource:
Optical Materials, 2017, 72, 316-322Funding / projects:
- Size-, shape- and structure- dependent properties of nanoparticles and nanocomposites (RS-MESTD-Basic Research (BR or ON)-172056)
DOI: 10.1016/j.optmat.2017.06.029
ISSN: 0925-3467; 1873-1252
WoS: 000413880500048
Scopus: 2-s2.0-85020938509
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VinčaTY - JOUR AU - Milićević, Bojana R. AU - Đorđević, Vesna R. AU - Vuković, Katarina AU - Dražić, Goran AU - Dramićanin, Miroslav PY - 2017 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1799 AB - 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. T2 - Optical Materials T1 - Effects of Li+ co-doping on properties of Eu3+ activated TiO2 anatase nanoparticles VL - 72 SP - 316 EP - 322 DO - 10.1016/j.optmat.2017.06.029 ER -
@article{ author = "Milićević, Bojana R. and Đorđević, Vesna R. and Vuković, Katarina and Dražić, Goran and Dramićanin, Miroslav", year = "2017", 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.", journal = "Optical Materials", title = "Effects of Li+ co-doping on properties of Eu3+ activated TiO2 anatase nanoparticles", volume = "72", pages = "316-322", doi = "10.1016/j.optmat.2017.06.029" }
Milićević, B. R., Đorđević, V. R., Vuković, K., Dražić, G.,& Dramićanin, M.. (2017). Effects of Li+ co-doping on properties of Eu3+ activated TiO2 anatase nanoparticles. in Optical Materials, 72, 316-322. https://doi.org/10.1016/j.optmat.2017.06.029
Milićević BR, Đorđević VR, Vuković K, Dražić G, Dramićanin M. Effects of Li+ co-doping on properties of Eu3+ activated TiO2 anatase nanoparticles. in Optical Materials. 2017;72:316-322. doi:10.1016/j.optmat.2017.06.029 .
Milićević, Bojana R., Đorđević, Vesna R., Vuković, Katarina, Dražić, Goran, Dramićanin, Miroslav, "Effects of Li+ co-doping on properties of Eu3+ activated TiO2 anatase nanoparticles" in Optical Materials, 72 (2017):316-322, https://doi.org/10.1016/j.optmat.2017.06.029 . .