Judd-Ofelt Analysis of Eu3+ Emission in TiO2 Anatase Nanoparticles
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Preparation and spectroscopic studies of the TiO2 nanopowders doped with Eu3+ ions are described. Efficient emission in the red part of the visible spectrum can be obtained due to the D-5(0) - GT F-7(2) emission of europium ions. Quantum efficiency of such emission was estimated to be about 0.83, which indicates a rather weak role of the non-radiative losses. However, the increase of Eu3+ concentration up to 10 at% significantly lowers the quantum efficiency because of the energy transfer and re-absorption processes. Higher doping concentrations (larger than 3 at% of Eu3+) also decrease the covalency of the Eu3+-O2- chemical bonds.
Кључне речи:
Judd-Ofelt analysis / TiO2 / nanoparticles / phosphorescence / europiumИзвор:
Materials Transactions. JIM / Japan Institute of Metals, 2015, 56, 9, 1416-1418Финансирање / пројекти:
- LUMINET - European Network on Luminescent Materials (EU-316906)
- Материјали редуковане димензионалности за ефикасну апсорпцију светлости и конверзију енергије (RS-45020)
- APV Provincial Secretariat for Science and Technological Development of the Republic of Serbia [114-451-1850/2014-03], Programme for the Foreign Experts offered by Chongqing University of Posts and Telecommunications, European Regional Development Fund (Centre of Excellence Mesosystems: Theory and Applications) [TK114], Ministry of Education and Research of Estonia [PUT430]
Напомена:
- 2nd International Symposium on Nano Materials, Technology and Applications (NANOMATA), Oct 15-17, 2014, Hanoi, Vietnam
DOI: 10.2320/matertrans.MA201566
ISSN: 1345-9678; 1347-5320
WoS: 000363364300026
Scopus: 2-s2.0-84941058522
Колекције
Институција/група
VinčaTY - JOUR AU - Brik, Mikhail G. AU - Antić, Željka AU - Vuković, Katarina AU - Dramićanin, Miroslav PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7084 AB - Preparation and spectroscopic studies of the TiO2 nanopowders doped with Eu3+ ions are described. Efficient emission in the red part of the visible spectrum can be obtained due to the D-5(0) - GT F-7(2) emission of europium ions. Quantum efficiency of such emission was estimated to be about 0.83, which indicates a rather weak role of the non-radiative losses. However, the increase of Eu3+ concentration up to 10 at% significantly lowers the quantum efficiency because of the energy transfer and re-absorption processes. Higher doping concentrations (larger than 3 at% of Eu3+) also decrease the covalency of the Eu3+-O2- chemical bonds. T2 - Materials Transactions. JIM / Japan Institute of Metals T1 - Judd-Ofelt Analysis of Eu3+ Emission in TiO2 Anatase Nanoparticles VL - 56 IS - 9 SP - 1416 EP - 1418 DO - 10.2320/matertrans.MA201566 ER -
@article{ author = "Brik, Mikhail G. and Antić, Željka and Vuković, Katarina and Dramićanin, Miroslav", year = "2015", abstract = "Preparation and spectroscopic studies of the TiO2 nanopowders doped with Eu3+ ions are described. Efficient emission in the red part of the visible spectrum can be obtained due to the D-5(0) - GT F-7(2) emission of europium ions. Quantum efficiency of such emission was estimated to be about 0.83, which indicates a rather weak role of the non-radiative losses. However, the increase of Eu3+ concentration up to 10 at% significantly lowers the quantum efficiency because of the energy transfer and re-absorption processes. Higher doping concentrations (larger than 3 at% of Eu3+) also decrease the covalency of the Eu3+-O2- chemical bonds.", journal = "Materials Transactions. JIM / Japan Institute of Metals", title = "Judd-Ofelt Analysis of Eu3+ Emission in TiO2 Anatase Nanoparticles", volume = "56", number = "9", pages = "1416-1418", doi = "10.2320/matertrans.MA201566" }
Brik, M. G., Antić, Ž., Vuković, K.,& Dramićanin, M.. (2015). Judd-Ofelt Analysis of Eu3+ Emission in TiO2 Anatase Nanoparticles. in Materials Transactions. JIM / Japan Institute of Metals, 56(9), 1416-1418. https://doi.org/10.2320/matertrans.MA201566
Brik MG, Antić Ž, Vuković K, Dramićanin M. Judd-Ofelt Analysis of Eu3+ Emission in TiO2 Anatase Nanoparticles. in Materials Transactions. JIM / Japan Institute of Metals. 2015;56(9):1416-1418. doi:10.2320/matertrans.MA201566 .
Brik, Mikhail G., Antić, Željka, Vuković, Katarina, Dramićanin, Miroslav, "Judd-Ofelt Analysis of Eu3+ Emission in TiO2 Anatase Nanoparticles" in Materials Transactions. JIM / Japan Institute of Metals, 56, no. 9 (2015):1416-1418, https://doi.org/10.2320/matertrans.MA201566 . .