Mena, I.

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  • Mena, I. (2)
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Author's Bibliography

Evaluación de las propiedades luminiscentes y detección de Eu2+ en partículas nanoestructuradas del sistema Gd2-xEuxO3 (x= 0.05, 0.10 y 0.30)

Barroso, Ignacio; Mena, I.; Gómez, Luz Stella; Milošević, Olivera; Rabanal, Maria Eugenia

(Madrid : Sociedad Espanola de Ceramica y Vidrio, 2012)

TY  - JOUR
AU  - Barroso, Ignacio
AU  - Mena, I.
AU  - Gómez, Luz Stella
AU  - Milošević, Olivera
AU  - Rabanal, Maria Eugenia
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/460
AB  - Mediante el método de Spray Pirólisis (SP) operando a 700ºC y en atmósfera de aire seco, se obtuvieron partículas nanoestructuradas de composición Gd2-xEuxO3 (χ= 0.05, 0.10 y 0.30) partiendo de las respectivas disoluciones acuosas de nitratos (0.1M). En el presente trabajo, se estudiaron tres muestras con distinta concentración de europio correspondiente al 1, 2 y 6% atómico. Posteriormente, las partículas nanoestructuradas obtenidas se sometieron a distintos tratamientos térmicos comprendidos entre 800 y 1000ºC/12h en atmósfera de aire.
Las partículas obtenidas se caracterizaron mediante técnicas de DRX, SEM, dispersión láser y medidas de fluorescencia en estado estacionario.
Se ha podido identificar la existencia de dos fases cristalinas cúbicas con distinta simetría (Ia-3 y Fm-3m) en las muestras “as-prepared”. Además, se ha demostrado la presencia de una fase de Gd2O3 monoclínica (C2/m), la cual desaparece con los tratamientos térmicos posteriores. En todas las muestras tratadas térmicamente se observa la estabilización de la fase cúbica más estable con simetría Ia-3.
Mediante medidas de emisión de fluorescencia se ha podido detectar en todas las muestras estudiadas la presencia de Eu2+ (λ=430nm), independientemente del porcentaje de Eu3+.
AB  - Spray Pyrolysis (SP) is performed at 700°C in dry air atmosphere using common nitrate aqueous solutions (0,1M) as precursor in order to obtain nanostructured particles with the composition Gd2-xEuxO3 (x= 0.05, 0.10 and 0.30). In this work, three samples with different atomic europium concentration (1, 2 and 6%) were studied. After, the obtained particles were subjected to different thermal treatments with varying temperatures between 800 and 1000oC/12 h in dry air atmosphere. The obtained particles were characterized by XRD, SEM techniques, laser dispersion and steady state fluorescence spectroscopy. The existence of two cubic phases with different symmetry cubic phases (Ia-3, Fm-3m) was identified within the "as-prepared" samples. Moreover, the presence of Gd2O3 monoclinic phase (C2/m) which disappears during the thermal treatments was proved. In all thermally treated samples, it was observed the stabilization of an only Ia-3 phase. Fluorescence emission measurements in all studied samples the presence of Eu2+ (λ= 430nm), whose intensity increases as long as the content of the monoclinic phase decreases of the Eu3+ percentage.
PB  - Madrid : Sociedad Espanola de Ceramica y Vidrio
T2  - Boletín de la Sociedad Espanola de Cerámica y Vidrio
T1  - Evaluación de las propiedades luminiscentes y detección de Eu2+ en partículas nanoestructuradas del sistema Gd2-xEuxO3 (x= 0.05, 0.10 y 0.30)
SP  - 255
EP  - 260
DO  - 10.3989/cyv.362012
UR  - https://hdl.handle.net/21.15107/rcub_dais_460
ER  - 
@article{
author = "Barroso, Ignacio and Mena, I. and Gómez, Luz Stella and Milošević, Olivera and Rabanal, Maria Eugenia",
year = "2012",
abstract = "Mediante el método de Spray Pirólisis (SP) operando a 700ºC y en atmósfera de aire seco, se obtuvieron partículas nanoestructuradas de composición Gd2-xEuxO3 (χ= 0.05, 0.10 y 0.30) partiendo de las respectivas disoluciones acuosas de nitratos (0.1M). En el presente trabajo, se estudiaron tres muestras con distinta concentración de europio correspondiente al 1, 2 y 6% atómico. Posteriormente, las partículas nanoestructuradas obtenidas se sometieron a distintos tratamientos térmicos comprendidos entre 800 y 1000ºC/12h en atmósfera de aire.
Las partículas obtenidas se caracterizaron mediante técnicas de DRX, SEM, dispersión láser y medidas de fluorescencia en estado estacionario.
Se ha podido identificar la existencia de dos fases cristalinas cúbicas con distinta simetría (Ia-3 y Fm-3m) en las muestras “as-prepared”. Además, se ha demostrado la presencia de una fase de Gd2O3 monoclínica (C2/m), la cual desaparece con los tratamientos térmicos posteriores. En todas las muestras tratadas térmicamente se observa la estabilización de la fase cúbica más estable con simetría Ia-3.
Mediante medidas de emisión de fluorescencia se ha podido detectar en todas las muestras estudiadas la presencia de Eu2+ (λ=430nm), independientemente del porcentaje de Eu3+., Spray Pyrolysis (SP) is performed at 700°C in dry air atmosphere using common nitrate aqueous solutions (0,1M) as precursor in order to obtain nanostructured particles with the composition Gd2-xEuxO3 (x= 0.05, 0.10 and 0.30). In this work, three samples with different atomic europium concentration (1, 2 and 6%) were studied. After, the obtained particles were subjected to different thermal treatments with varying temperatures between 800 and 1000oC/12 h in dry air atmosphere. The obtained particles were characterized by XRD, SEM techniques, laser dispersion and steady state fluorescence spectroscopy. The existence of two cubic phases with different symmetry cubic phases (Ia-3, Fm-3m) was identified within the "as-prepared" samples. Moreover, the presence of Gd2O3 monoclinic phase (C2/m) which disappears during the thermal treatments was proved. In all thermally treated samples, it was observed the stabilization of an only Ia-3 phase. Fluorescence emission measurements in all studied samples the presence of Eu2+ (λ= 430nm), whose intensity increases as long as the content of the monoclinic phase decreases of the Eu3+ percentage.",
publisher = "Madrid : Sociedad Espanola de Ceramica y Vidrio",
journal = "Boletín de la Sociedad Espanola de Cerámica y Vidrio",
title = "Evaluación de las propiedades luminiscentes y detección de Eu2+ en partículas nanoestructuradas del sistema Gd2-xEuxO3 (x= 0.05, 0.10 y 0.30)",
pages = "255-260",
doi = "10.3989/cyv.362012",
url = "https://hdl.handle.net/21.15107/rcub_dais_460"
}
Barroso, I., Mena, I., Gómez, L. S., Milošević, O.,& Rabanal, M. E.. (2012). Evaluación de las propiedades luminiscentes y detección de Eu2+ en partículas nanoestructuradas del sistema Gd2-xEuxO3 (x= 0.05, 0.10 y 0.30). in Boletín de la Sociedad Espanola de Cerámica y Vidrio
Madrid : Sociedad Espanola de Ceramica y Vidrio., 255-260.
https://doi.org/10.3989/cyv.362012
https://hdl.handle.net/21.15107/rcub_dais_460
Barroso I, Mena I, Gómez LS, Milošević O, Rabanal ME. Evaluación de las propiedades luminiscentes y detección de Eu2+ en partículas nanoestructuradas del sistema Gd2-xEuxO3 (x= 0.05, 0.10 y 0.30). in Boletín de la Sociedad Espanola de Cerámica y Vidrio. 2012;:255-260.
doi:10.3989/cyv.362012
https://hdl.handle.net/21.15107/rcub_dais_460 .
Barroso, Ignacio, Mena, I., Gómez, Luz Stella, Milošević, Olivera, Rabanal, Maria Eugenia, "Evaluación de las propiedades luminiscentes y detección de Eu2+ en partículas nanoestructuradas del sistema Gd2-xEuxO3 (x= 0.05, 0.10 y 0.30)" in Boletín de la Sociedad Espanola de Cerámica y Vidrio (2012):255-260,
https://doi.org/10.3989/cyv.362012 .,
https://hdl.handle.net/21.15107/rcub_dais_460 .
2
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2

Synthesis and characterization of rare earth oxide nanostructured particles doped with Eu for luminescent applications obtained by aerosol method

Gómez, Luz Stella; Marinković, Katarina; Martín, M. I.; Mena, I.; Milošević, Olivera; Rabanal, Maria Eugenia

(Madrid : Sociedad Espanola de Ceramica y Vidrio, 2009)

TY  - JOUR
AU  - Gómez, Luz Stella
AU  - Marinković, Katarina
AU  - Martín, M. I.
AU  - Mena, I.
AU  - Milošević, Olivera
AU  - Rabanal, Maria Eugenia
PY  - 2009
UR  - https://dais.sanu.ac.rs/123456789/3482
AB  - Gadolinium and Ytrium oxides doped with europium (Gd2O3:Eu, Y2O3:Eu) have luminiscent properties. Such properties are improved with the use of nanostructured materials with spherical geometry and narrow particle size distribution. Besides, luminescent properties enhance with a homogeneous distribution of dopant centers in the host matrix material. In this paper the synthesis and characterization of gadolinium and yttrium doped with different proportions of Europium are shown. Nanostructured particles were synthesized through Spray Pyrolysis route in a tubular furnace at different temperatures, and subjected to different post-thermal treatments. Scanning electron microscopy (SEM-EDS), transmission electron microscopy (TEM) and X-ray diffractometry (XRD) were used for the morphological, chemical and structural characterization of the nanoparticles.
PB  - Madrid : Sociedad Espanola de Ceramica y Vidrio
T2  - Boletin de la Sociedad Espanola de Ceramica y Vidrio
T1  - Synthesis and characterization of rare earth oxide nanostructured particles doped with Eu for luminescent applications obtained by aerosol method
SP  - 33
EP  - 38
VL  - 48
IS  - 1
UR  - https://hdl.handle.net/21.15107/rcub_dais_3482
ER  - 
@article{
author = "Gómez, Luz Stella and Marinković, Katarina and Martín, M. I. and Mena, I. and Milošević, Olivera and Rabanal, Maria Eugenia",
year = "2009",
abstract = "Gadolinium and Ytrium oxides doped with europium (Gd2O3:Eu, Y2O3:Eu) have luminiscent properties. Such properties are improved with the use of nanostructured materials with spherical geometry and narrow particle size distribution. Besides, luminescent properties enhance with a homogeneous distribution of dopant centers in the host matrix material. In this paper the synthesis and characterization of gadolinium and yttrium doped with different proportions of Europium are shown. Nanostructured particles were synthesized through Spray Pyrolysis route in a tubular furnace at different temperatures, and subjected to different post-thermal treatments. Scanning electron microscopy (SEM-EDS), transmission electron microscopy (TEM) and X-ray diffractometry (XRD) were used for the morphological, chemical and structural characterization of the nanoparticles.",
publisher = "Madrid : Sociedad Espanola de Ceramica y Vidrio",
journal = "Boletin de la Sociedad Espanola de Ceramica y Vidrio",
title = "Synthesis and characterization of rare earth oxide nanostructured particles doped with Eu for luminescent applications obtained by aerosol method",
pages = "33-38",
volume = "48",
number = "1",
url = "https://hdl.handle.net/21.15107/rcub_dais_3482"
}
Gómez, L. S., Marinković, K., Martín, M. I., Mena, I., Milošević, O.,& Rabanal, M. E.. (2009). Synthesis and characterization of rare earth oxide nanostructured particles doped with Eu for luminescent applications obtained by aerosol method. in Boletin de la Sociedad Espanola de Ceramica y Vidrio
Madrid : Sociedad Espanola de Ceramica y Vidrio., 48(1), 33-38.
https://hdl.handle.net/21.15107/rcub_dais_3482
Gómez LS, Marinković K, Martín MI, Mena I, Milošević O, Rabanal ME. Synthesis and characterization of rare earth oxide nanostructured particles doped with Eu for luminescent applications obtained by aerosol method. in Boletin de la Sociedad Espanola de Ceramica y Vidrio. 2009;48(1):33-38.
https://hdl.handle.net/21.15107/rcub_dais_3482 .
Gómez, Luz Stella, Marinković, Katarina, Martín, M. I., Mena, I., Milošević, Olivera, Rabanal, Maria Eugenia, "Synthesis and characterization of rare earth oxide nanostructured particles doped with Eu for luminescent applications obtained by aerosol method" in Boletin de la Sociedad Espanola de Ceramica y Vidrio, 48, no. 1 (2009):33-38,
https://hdl.handle.net/21.15107/rcub_dais_3482 .
1