Nanodesigning of SiO2 : Eu3+ particles obtained by spray pyrolysis method and their luminescence properties
Апстракт
Mechanism of droplet formation and the structuring of SiO2:Eu3+ spheres prepared by the process of ultrasonic spray pyrolysis, using colloidal solution consisting of the 7.5 mn SiO2 nanoparticles and Eu(NO3)(3)center dot 6H(2)O as a precursor, is described. The proposed model quantitatively defines each line in the size distribution spectrum. Agreement between theoretically obtained basic structural parameters (size distribution and geometry) and experimentally determined values was found. Electron microscopy of SiO2:Eu3+ powder revealed three-level arrangement of material: nanoparticles, sub-particles and spheres, also in agreement with the theoretical model. Luminescence properties of trivalent europium ions imbedded in such structured system are investigated in addition. Characteristic emissions of (5)Do(0) - GT F-7(J) transitions of Eu3+ ion were found with a good chromaticity and very good luminescence lifetime of 3.3 ms.
Кључне речи:
spray pyrolysis / nanodesigning / silica sol / europium / luminescenceИзвор:
Acta Chimica Slovenica, 2006, 53, 1, 23-28Напомена:
- Paper based on a presentation at the 14th International Symposium “Spectroscopy in Theory and Practice”, Nova Gorica, Slovenia, 2005.
Колекције
Институција/група
VinčaTY - JOUR AU - Jokanović, Vukoman R. AU - Dramićanin, Miroslav AU - Andrić, Željka PY - 2006 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2994 AB - Mechanism of droplet formation and the structuring of SiO2:Eu3+ spheres prepared by the process of ultrasonic spray pyrolysis, using colloidal solution consisting of the 7.5 mn SiO2 nanoparticles and Eu(NO3)(3)center dot 6H(2)O as a precursor, is described. The proposed model quantitatively defines each line in the size distribution spectrum. Agreement between theoretically obtained basic structural parameters (size distribution and geometry) and experimentally determined values was found. Electron microscopy of SiO2:Eu3+ powder revealed three-level arrangement of material: nanoparticles, sub-particles and spheres, also in agreement with the theoretical model. Luminescence properties of trivalent europium ions imbedded in such structured system are investigated in addition. Characteristic emissions of (5)Do(0) - GT F-7(J) transitions of Eu3+ ion were found with a good chromaticity and very good luminescence lifetime of 3.3 ms. T2 - Acta Chimica Slovenica T1 - Nanodesigning of SiO2 : Eu3+ particles obtained by spray pyrolysis method and their luminescence properties VL - 53 IS - 1 SP - 23 EP - 28 UR - https://hdl.handle.net/21.15107/rcub_vinar_2994 ER -
@article{ author = "Jokanović, Vukoman R. and Dramićanin, Miroslav and Andrić, Željka", year = "2006", abstract = "Mechanism of droplet formation and the structuring of SiO2:Eu3+ spheres prepared by the process of ultrasonic spray pyrolysis, using colloidal solution consisting of the 7.5 mn SiO2 nanoparticles and Eu(NO3)(3)center dot 6H(2)O as a precursor, is described. The proposed model quantitatively defines each line in the size distribution spectrum. Agreement between theoretically obtained basic structural parameters (size distribution and geometry) and experimentally determined values was found. Electron microscopy of SiO2:Eu3+ powder revealed three-level arrangement of material: nanoparticles, sub-particles and spheres, also in agreement with the theoretical model. Luminescence properties of trivalent europium ions imbedded in such structured system are investigated in addition. Characteristic emissions of (5)Do(0) - GT F-7(J) transitions of Eu3+ ion were found with a good chromaticity and very good luminescence lifetime of 3.3 ms.", journal = "Acta Chimica Slovenica", title = "Nanodesigning of SiO2 : Eu3+ particles obtained by spray pyrolysis method and their luminescence properties", volume = "53", number = "1", pages = "23-28", url = "https://hdl.handle.net/21.15107/rcub_vinar_2994" }
Jokanović, V. R., Dramićanin, M.,& Andrić, Ž.. (2006). Nanodesigning of SiO2 : Eu3+ particles obtained by spray pyrolysis method and their luminescence properties. in Acta Chimica Slovenica, 53(1), 23-28. https://hdl.handle.net/21.15107/rcub_vinar_2994
Jokanović VR, Dramićanin M, Andrić Ž. Nanodesigning of SiO2 : Eu3+ particles obtained by spray pyrolysis method and their luminescence properties. in Acta Chimica Slovenica. 2006;53(1):23-28. https://hdl.handle.net/21.15107/rcub_vinar_2994 .
Jokanović, Vukoman R., Dramićanin, Miroslav, Andrić, Željka, "Nanodesigning of SiO2 : Eu3+ particles obtained by spray pyrolysis method and their luminescence properties" in Acta Chimica Slovenica, 53, no. 1 (2006):23-28, https://hdl.handle.net/21.15107/rcub_vinar_2994 .