The luminescent quantum efficiency of Cr³⁺ ions in co-doped crystals of LiNb0<syb>3</sub> : ZnO determined by simultaneous multiple-wavelength photoacoustic and luminescence experiments
In this paper, the luminescent quantum efficiency of Cr³⁺ ions in co-doped crystals of LiNb0<sub>3</sub>: ZnO: Cr³⁺ is determined by using a method based on simultaneous multiple-wavelength measurement of photoacoustic and luminescence signal after pulsed laser excitation. The quantum ef...
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| Autores principales: | , , , , |
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| Formato: | Articulo |
| Lenguaje: | Español |
| Publicado: |
2001
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/44659 |
| Aporte de: |
| id |
I19-R120-10915-44659 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Español |
| topic |
Ciencias Exactas luminescent quantum efficiency multiple-wavelength measurement photoacoustic signal luminescence signal Óptica y Fotónica Espectroscopía |
| spellingShingle |
Ciencias Exactas luminescent quantum efficiency multiple-wavelength measurement photoacoustic signal luminescence signal Óptica y Fotónica Espectroscopía Torchia, Gustavo Adrián Muñoz, J. A. Cussó Pérez, Fernando Jaque Rechea, Francisco Tocho, Jorge Omar The luminescent quantum efficiency of Cr³⁺ ions in co-doped crystals of LiNb0<syb>3</sub> : ZnO determined by simultaneous multiple-wavelength photoacoustic and luminescence experiments |
| topic_facet |
Ciencias Exactas luminescent quantum efficiency multiple-wavelength measurement photoacoustic signal luminescence signal Óptica y Fotónica Espectroscopía |
| description |
In this paper, the luminescent quantum efficiency of Cr³⁺ ions in co-doped crystals of LiNb0<sub>3</sub>: ZnO: Cr³⁺ is determined by using a method based on simultaneous multiple-wavelength measurement of photoacoustic and luminescence signal after pulsed laser excitation. The quantum efficiency found in this lattice was (10 ±4)% . This result was compared with the value found from the study of the lifetime in terms of the temperature of the luminescent levels involved. In this last case, two non-equivalent crystal sites were found for Cr³⁺ ions, and two fluorescence quantum yields were determined. After the estimation of the concentration of each site by electron paramagnetic resonance experiments, the averaged fluorescence quantum yield value was (9 ± 2)% in agreement with the previous result. |
| format |
Articulo Articulo |
| author |
Torchia, Gustavo Adrián Muñoz, J. A. Cussó Pérez, Fernando Jaque Rechea, Francisco Tocho, Jorge Omar |
| author_facet |
Torchia, Gustavo Adrián Muñoz, J. A. Cussó Pérez, Fernando Jaque Rechea, Francisco Tocho, Jorge Omar |
| author_sort |
Torchia, Gustavo Adrián |
| title |
The luminescent quantum efficiency of Cr³⁺ ions in co-doped crystals of LiNb0<syb>3</sub> : ZnO determined by simultaneous multiple-wavelength photoacoustic and luminescence experiments |
| title_short |
The luminescent quantum efficiency of Cr³⁺ ions in co-doped crystals of LiNb0<syb>3</sub> : ZnO determined by simultaneous multiple-wavelength photoacoustic and luminescence experiments |
| title_full |
The luminescent quantum efficiency of Cr³⁺ ions in co-doped crystals of LiNb0<syb>3</sub> : ZnO determined by simultaneous multiple-wavelength photoacoustic and luminescence experiments |
| title_fullStr |
The luminescent quantum efficiency of Cr³⁺ ions in co-doped crystals of LiNb0<syb>3</sub> : ZnO determined by simultaneous multiple-wavelength photoacoustic and luminescence experiments |
| title_full_unstemmed |
The luminescent quantum efficiency of Cr³⁺ ions in co-doped crystals of LiNb0<syb>3</sub> : ZnO determined by simultaneous multiple-wavelength photoacoustic and luminescence experiments |
| title_sort |
luminescent quantum efficiency of cr³⁺ ions in co-doped crystals of linb0<syb>3</sub> : zno determined by simultaneous multiple-wavelength photoacoustic and luminescence experiments |
| publishDate |
2001 |
| url |
http://sedici.unlp.edu.ar/handle/10915/44659 |
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Repositorios |
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1764820473921667076 |