Analysis of Eu3+ Emission from Mg2TiO4 Nanoparticles by Judd-Ofelt Theory
Eu3+ doped Mg2TiO4 (2 at% of Eu) nanoparticles which are 5 to 10 nm in diameter are prepared by Pechini-type polymerized complex route followed with the calcination in the temperature range from 400°C to 700°C. Emission spectra display characteristic D0→FJ (J=0, 1, 2, 3, and 4) spin forbidden f-f...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2015/736517 |
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| author | Katarina Vuković Mina Medić Milica Sekulić Miroslav D. Dramićanin |
| author_facet | Katarina Vuković Mina Medić Milica Sekulić Miroslav D. Dramićanin |
| author_sort | Katarina Vuković |
| collection | DOAJ |
| description | Eu3+ doped Mg2TiO4 (2 at% of Eu) nanoparticles which are 5 to 10 nm in diameter are prepared by Pechini-type polymerized complex route followed with the calcination in the temperature range from 400°C to 700°C. Emission spectra display characteristic D0→FJ (J=0, 1, 2, 3, and 4) spin forbidden f-f electronic transitions of the Eu3+ ions with the most pronounced emission coming from D0→F2 transition and with the emission decays varying between 0.57 and 0.87 ms for samples prepared at different temperatures. Judd-Ofelt theoretical analysis of the emission spectra of Eu3+ ions was performed, which allowed calculating radiative and nonradiative emission probabilities, Judd-Ofelt intensity parameters, and the quantum efficiency of the Eu3+ emission in the Mg2TiO4 nanoparticles. The analyses showed the existence of high asymmetry around the metal ion sites. Also, the largest quantum efficiency of emission of 58.5% is found in nanoparticles prepared at 600°C. |
| format | Article |
| id | doaj-art-635694498ec2499d8a8c171a4acc98e7 |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-635694498ec2499d8a8c171a4acc98e72025-08-20T03:34:31ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242015-01-01201510.1155/2015/736517736517Analysis of Eu3+ Emission from Mg2TiO4 Nanoparticles by Judd-Ofelt TheoryKatarina Vuković0Mina Medić1Milica Sekulić2Miroslav D. Dramićanin3Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11000 Belgrade, SerbiaVinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11000 Belgrade, SerbiaVinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11000 Belgrade, SerbiaVinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11000 Belgrade, SerbiaEu3+ doped Mg2TiO4 (2 at% of Eu) nanoparticles which are 5 to 10 nm in diameter are prepared by Pechini-type polymerized complex route followed with the calcination in the temperature range from 400°C to 700°C. Emission spectra display characteristic D0→FJ (J=0, 1, 2, 3, and 4) spin forbidden f-f electronic transitions of the Eu3+ ions with the most pronounced emission coming from D0→F2 transition and with the emission decays varying between 0.57 and 0.87 ms for samples prepared at different temperatures. Judd-Ofelt theoretical analysis of the emission spectra of Eu3+ ions was performed, which allowed calculating radiative and nonradiative emission probabilities, Judd-Ofelt intensity parameters, and the quantum efficiency of the Eu3+ emission in the Mg2TiO4 nanoparticles. The analyses showed the existence of high asymmetry around the metal ion sites. Also, the largest quantum efficiency of emission of 58.5% is found in nanoparticles prepared at 600°C.http://dx.doi.org/10.1155/2015/736517 |
| spellingShingle | Katarina Vuković Mina Medić Milica Sekulić Miroslav D. Dramićanin Analysis of Eu3+ Emission from Mg2TiO4 Nanoparticles by Judd-Ofelt Theory Advances in Condensed Matter Physics |
| title | Analysis of Eu3+ Emission from Mg2TiO4 Nanoparticles by Judd-Ofelt Theory |
| title_full | Analysis of Eu3+ Emission from Mg2TiO4 Nanoparticles by Judd-Ofelt Theory |
| title_fullStr | Analysis of Eu3+ Emission from Mg2TiO4 Nanoparticles by Judd-Ofelt Theory |
| title_full_unstemmed | Analysis of Eu3+ Emission from Mg2TiO4 Nanoparticles by Judd-Ofelt Theory |
| title_short | Analysis of Eu3+ Emission from Mg2TiO4 Nanoparticles by Judd-Ofelt Theory |
| title_sort | analysis of eu3 emission from mg2tio4 nanoparticles by judd ofelt theory |
| url | http://dx.doi.org/10.1155/2015/736517 |
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