Eu3+-doped (Y0.5La0.5)(2)O-3: new nanophosphor with the bixbyite cubic structure
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Đorđević, Vesna R.Nikolić, Marko G.
Bartova, Barbora
Krsmanović, Radenka
Antić, Željka
Dramićanin, Miroslav
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New red sesquioxide phosphor, Eu(3+)doped (Y0.5La0.5)(2)O-3, was synthesized in the form of nanocrystalline powder with excellent structural ordering in cubic bixbyite-type, and with nanoparticle sizes ranging between 10 and 20 nm. Photoluminescence measurements show strong, Eu3+ characteristic, red emission (x = 0.66 and y = 0.34 CIE color coordinates) with an average D-5(0) emission lifetime of about 1.3 ms. Maximum splitting of the F-7(1) manifold of the Eu3+ ion emission behaves in a way directly proportional to the crystal field strength parameter, and experimental results show perfect agreement with theoretical values for pure cubic sesquioxides. This could be used as an indicator of complete dissolution of Y2O3 and La2O3, showing that (Y0.5La0.5)(2)O-3:Eu3+ behaves as a new bixbyite structure oxide, M2O3, where M acts as an ion having average ionic radius of constituting Y3+ and La3+. Emission properties of this new phosphor were documented with detailed assignments of Eu3+ ener...gy levels at 10 K and at room temperature. Second order crystal field parameters were found to be B-20 = -66 cm(-1) and B-22 = -665 cm(-1) at 10 K and B-20 = -78 cm(-1) and B-22 = -602 cm(-1) at room temperature, while for the crystal field strength the value of 1495 cm(-1) was calculated at 10 K and 1355 cm(-1) at room temperature.
Keywords:
Phosphor / Sesquioxide / Photoluminescence / Combustion / Crystal fieldSource:
Journal of Nanoparticle Research, 2013, 15, 1Funding / projects:
- Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
- Physics of amorphous and nanostructural materials (RS-MESTD-Basic Research (BR or ON)-171022)
DOI: 10.1007/s11051-012-1322-6
ISSN: 1388-0764; 1572-896X
WoS: 000318550000012
Scopus: 2-s2.0-84870337464
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VinčaTY - JOUR AU - Đorđević, Vesna R. AU - Nikolić, Marko G. AU - Bartova, Barbora AU - Krsmanović, Radenka AU - Antić, Željka AU - Dramićanin, Miroslav PY - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5494 AB - New red sesquioxide phosphor, Eu(3+)doped (Y0.5La0.5)(2)O-3, was synthesized in the form of nanocrystalline powder with excellent structural ordering in cubic bixbyite-type, and with nanoparticle sizes ranging between 10 and 20 nm. Photoluminescence measurements show strong, Eu3+ characteristic, red emission (x = 0.66 and y = 0.34 CIE color coordinates) with an average D-5(0) emission lifetime of about 1.3 ms. Maximum splitting of the F-7(1) manifold of the Eu3+ ion emission behaves in a way directly proportional to the crystal field strength parameter, and experimental results show perfect agreement with theoretical values for pure cubic sesquioxides. This could be used as an indicator of complete dissolution of Y2O3 and La2O3, showing that (Y0.5La0.5)(2)O-3:Eu3+ behaves as a new bixbyite structure oxide, M2O3, where M acts as an ion having average ionic radius of constituting Y3+ and La3+. Emission properties of this new phosphor were documented with detailed assignments of Eu3+ energy levels at 10 K and at room temperature. Second order crystal field parameters were found to be B-20 = -66 cm(-1) and B-22 = -665 cm(-1) at 10 K and B-20 = -78 cm(-1) and B-22 = -602 cm(-1) at room temperature, while for the crystal field strength the value of 1495 cm(-1) was calculated at 10 K and 1355 cm(-1) at room temperature. T2 - Journal of Nanoparticle Research T1 - Eu3+-doped (Y0.5La0.5)(2)O-3: new nanophosphor with the bixbyite cubic structure VL - 15 IS - 1 DO - 10.1007/s11051-012-1322-6 ER -
@article{ author = "Đorđević, Vesna R. and Nikolić, Marko G. and Bartova, Barbora and Krsmanović, Radenka and Antić, Željka and Dramićanin, Miroslav", year = "2013", abstract = "New red sesquioxide phosphor, Eu(3+)doped (Y0.5La0.5)(2)O-3, was synthesized in the form of nanocrystalline powder with excellent structural ordering in cubic bixbyite-type, and with nanoparticle sizes ranging between 10 and 20 nm. Photoluminescence measurements show strong, Eu3+ characteristic, red emission (x = 0.66 and y = 0.34 CIE color coordinates) with an average D-5(0) emission lifetime of about 1.3 ms. Maximum splitting of the F-7(1) manifold of the Eu3+ ion emission behaves in a way directly proportional to the crystal field strength parameter, and experimental results show perfect agreement with theoretical values for pure cubic sesquioxides. This could be used as an indicator of complete dissolution of Y2O3 and La2O3, showing that (Y0.5La0.5)(2)O-3:Eu3+ behaves as a new bixbyite structure oxide, M2O3, where M acts as an ion having average ionic radius of constituting Y3+ and La3+. Emission properties of this new phosphor were documented with detailed assignments of Eu3+ energy levels at 10 K and at room temperature. Second order crystal field parameters were found to be B-20 = -66 cm(-1) and B-22 = -665 cm(-1) at 10 K and B-20 = -78 cm(-1) and B-22 = -602 cm(-1) at room temperature, while for the crystal field strength the value of 1495 cm(-1) was calculated at 10 K and 1355 cm(-1) at room temperature.", journal = "Journal of Nanoparticle Research", title = "Eu3+-doped (Y0.5La0.5)(2)O-3: new nanophosphor with the bixbyite cubic structure", volume = "15", number = "1", doi = "10.1007/s11051-012-1322-6" }
Đorđević, V. R., Nikolić, M. G., Bartova, B., Krsmanović, R., Antić, Ž.,& Dramićanin, M.. (2013). Eu3+-doped (Y0.5La0.5)(2)O-3: new nanophosphor with the bixbyite cubic structure. in Journal of Nanoparticle Research, 15(1). https://doi.org/10.1007/s11051-012-1322-6
Đorđević VR, Nikolić MG, Bartova B, Krsmanović R, Antić Ž, Dramićanin M. Eu3+-doped (Y0.5La0.5)(2)O-3: new nanophosphor with the bixbyite cubic structure. in Journal of Nanoparticle Research. 2013;15(1). doi:10.1007/s11051-012-1322-6 .
Đorđević, Vesna R., Nikolić, Marko G., Bartova, Barbora, Krsmanović, Radenka, Antić, Željka, Dramićanin, Miroslav, "Eu3+-doped (Y0.5La0.5)(2)O-3: new nanophosphor with the bixbyite cubic structure" in Journal of Nanoparticle Research, 15, no. 1 (2013), https://doi.org/10.1007/s11051-012-1322-6 . .