Analysis of Eu3+ Emission from Mg2TiO4 Nanoparticles by Judd-Ofelt Theory
Апстракт
Eu3+ doped Mg-2 TiO4 (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 degrees C to 700 degrees C. Emission spectra display characteristic D-5(0) - GT F-7(J) (J = 0, 1, 2, 3, and 4) spin forbidden f-f electronic transitions of the Eu3+ ions with the most pronounced emission coming from D-5(0) - GT F-7(2) transition and with the emission decays varying between 0.57 and 0.87ms 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 Mg-2 TiO4 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 prepar...ed at 600 degrees C.
Извор:
Advances in Condensed Matter Physics, 2015Финансирање / пројекти:
- Материјали редуковане димензионалности за ефикасну апсорпцију светлости и конверзију енергије (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
- APV Provincial Secretariat for Science and Technological Development of the Republic of Serbia [114-451-1850/2014-03]
DOI: 10.1155/2015/736517
ISSN: 1687-8108; 1687-8124
WoS: 000359214400001
Scopus: 2-s2.0-84939173939
Колекције
Институција/група
VinčaTY - JOUR AU - Vuković, Katarina AU - Medić, Mina M. AU - Sekulić, Milica AU - Dramićanin, Miroslav PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/692 AB - Eu3+ doped Mg-2 TiO4 (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 degrees C to 700 degrees C. Emission spectra display characteristic D-5(0) - GT F-7(J) (J = 0, 1, 2, 3, and 4) spin forbidden f-f electronic transitions of the Eu3+ ions with the most pronounced emission coming from D-5(0) - GT F-7(2) transition and with the emission decays varying between 0.57 and 0.87ms 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 Mg-2 TiO4 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 degrees C. T2 - Advances in Condensed Matter Physics T1 - Analysis of Eu3+ Emission from Mg2TiO4 Nanoparticles by Judd-Ofelt Theory DO - 10.1155/2015/736517 ER -
@article{ author = "Vuković, Katarina and Medić, Mina M. and Sekulić, Milica and Dramićanin, Miroslav", year = "2015", abstract = "Eu3+ doped Mg-2 TiO4 (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 degrees C to 700 degrees C. Emission spectra display characteristic D-5(0) - GT F-7(J) (J = 0, 1, 2, 3, and 4) spin forbidden f-f electronic transitions of the Eu3+ ions with the most pronounced emission coming from D-5(0) - GT F-7(2) transition and with the emission decays varying between 0.57 and 0.87ms 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 Mg-2 TiO4 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 degrees C.", journal = "Advances in Condensed Matter Physics", title = "Analysis of Eu3+ Emission from Mg2TiO4 Nanoparticles by Judd-Ofelt Theory", doi = "10.1155/2015/736517" }
Vuković, K., Medić, M. M., Sekulić, M.,& Dramićanin, M.. (2015). Analysis of Eu3+ Emission from Mg2TiO4 Nanoparticles by Judd-Ofelt Theory. in Advances in Condensed Matter Physics. https://doi.org/10.1155/2015/736517
Vuković K, Medić MM, Sekulić M, Dramićanin M. Analysis of Eu3+ Emission from Mg2TiO4 Nanoparticles by Judd-Ofelt Theory. in Advances in Condensed Matter Physics. 2015;. doi:10.1155/2015/736517 .
Vuković, Katarina, Medić, Mina M., Sekulić, Milica, Dramićanin, Miroslav, "Analysis of Eu3+ Emission from Mg2TiO4 Nanoparticles by Judd-Ofelt Theory" in Advances in Condensed Matter Physics (2015), https://doi.org/10.1155/2015/736517 . .