dor_id: 4107360

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856.4.0.u: https://rmf.smf.mx/ojs/rmf/article/view/4211/4178

100.1.#.a: Mariscal Becerra, L.; Carmona Téllez, S.; Vázquez Arreguín, R.; García Rosas, C. M.; Falcon, C.; Murrieta, H.; Sánchez Alejo, M. A.

524.#.#.a: Mariscal Becerra, L., et al. (2016). Green light emission in aluminum oxide powders doped with different terbium concentrations. Revista Mexicana de Física; Vol 62, No 4 Jul-Aug: 285-0. Recuperado de https://repositorio.unam.mx/contenidos/4107360

245.1.0.a: Green light emission in aluminum oxide powders doped with different terbium concentrations

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Facultad de Ciencias, UNAM

264.#.0.c: 2016

264.#.1.c: 2016-01-01

653.#.#.a: Terbium; luminescence; powders; aluminum oxide

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001.#.#.#: oai:ojs.rmf.smf.mx:article/4211

041.#.7.h: eng

520.3.#.a: Different emission intensities presented in aluminum oxide phosphors corresponding to different concentrations of doping performed with terbium are analyzed. The phosphors were synthesized by the evaporation technique and were characterized by photo and cathodolumines- cence, x-ray diffraction, and EDS techniques for different incorporation percentages of terbium as dopant; they show characteristic transitions in 494, 543, 587 and 622 nm, corresponding to 5 D 4 ! 7 F 6 , 5 D 4 ! 7 F 5 , 5 D 4 ! 7 F 4 and 5 D 4 ! 7 F 3 , respectively when they are excited with ∏ exc = 380 nm wavelength at room temperature.The results of XRD show the presence of Æ -Al 2 O 3 phases with peaks located at 2 μ = 25 : 78 , 35.34, 37.96, 43.56, 45.8, 52.74, 57.7, 61.5, 66.74, 68.44, 77.12 and 80.94, and the ± -Al 2 O 3 phase 2 μ = 32 : 82 , 45.8, 61.36 and 66.74. These compounds were heat treated for two hours at 1100 ± C. EDS analyzes indicate that these compounds have close to 60% oxygen around of 40% aluminum in the presence of terbium as dopant which indicates a stoichiometry close to the expected one for alumina.

773.1.#.t: Revista Mexicana de Física; Vol 62, No 4 Jul-Aug (2016): 285-0

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handle: 00af423864a57955

harvesting_date: 2020-09-23 00:00:00.0

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last_modified: 2020-11-27 00:00:00

license_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es

license_type: by-nc-nd

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Artículo

Green light emission in aluminum oxide powders doped with different terbium concentrations

Mariscal Becerra, L.; Carmona Téllez, S.; Vázquez Arreguín, R.; García Rosas, C. M.; Falcon, C.; Murrieta, H.; Sánchez Alejo, M. A.

Facultad de Ciencias, UNAM, publicado en Revista Mexicana de Física, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Facultad de Ciencias, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Mariscal Becerra, L., et al. (2016). Green light emission in aluminum oxide powders doped with different terbium concentrations. Revista Mexicana de Física; Vol 62, No 4 Jul-Aug: 285-0. Recuperado de https://repositorio.unam.mx/contenidos/4107360

Descripción del recurso

Autor(es)
Mariscal Becerra, L.; Carmona Téllez, S.; Vázquez Arreguín, R.; García Rosas, C. M.; Falcon, C.; Murrieta, H.; Sánchez Alejo, M. A.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Green light emission in aluminum oxide powders doped with different terbium concentrations
Fecha
2016-01-01
Resumen
Different emission intensities presented in aluminum oxide phosphors corresponding to different concentrations of doping performed with terbium are analyzed. The phosphors were synthesized by the evaporation technique and were characterized by photo and cathodolumines- cence, x-ray diffraction, and EDS techniques for different incorporation percentages of terbium as dopant; they show characteristic transitions in 494, 543, 587 and 622 nm, corresponding to 5 D 4 ! 7 F 6 , 5 D 4 ! 7 F 5 , 5 D 4 ! 7 F 4 and 5 D 4 ! 7 F 3 , respectively when they are excited with ∏ exc = 380 nm wavelength at room temperature.The results of XRD show the presence of Æ -Al 2 O 3 phases with peaks located at 2 μ = 25 : 78 , 35.34, 37.96, 43.56, 45.8, 52.74, 57.7, 61.5, 66.74, 68.44, 77.12 and 80.94, and the ± -Al 2 O 3 phase 2 μ = 32 : 82 , 45.8, 61.36 and 66.74. These compounds were heat treated for two hours at 1100 ± C. EDS analyzes indicate that these compounds have close to 60% oxygen around of 40% aluminum in the presence of terbium as dopant which indicates a stoichiometry close to the expected one for alumina.
Tema
Terbium; luminescence; powders; aluminum oxide
Idioma
eng
ISSN
2683-2224 (digital); 0035-001X (impresa)

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