Optical characterisation of rare earths in natural fluorapatite

E. Cantelar*, G. Lifante, T. Calderón, R. Meléndrez, A. Millán, M. A. Alvarez, M. Barboza-Flores

*Autor correspondiente de este trabajo

Producción científica: Contribución a una revistaArtículo de la conferenciarevisión exhaustiva

17 Citas (Scopus)

Resumen

Fluorapatite coming from Jumilla (Spain) has been investigated by means of optical absorption, photoluminescence and lifetimes. The absorption spectra at room and low temperature in the range 450-850 nm showed mainly the presence of Nd3+ ions. The emission and excitation spectra in the UV region reveal also the presence of Ce3+ ions, which cannot be detected by absorption due to the tail of the matrix absorption edge. In addition to the infrared emission at 0.89, 1.06 and 1.33 μm coming from the Nd3+ ions and the UV emission around 380 nm due to the presence of Ce3+ ions, an intense red emission (λ=600 nm) is observed after blue-green excitation. Following the characteristics of the red band as well as its lifetime (τ=132 μs) this emission has been attributed to the presence of Pr3+ ions.

Idioma originalInglés
Páginas (desde-hasta)851-854
Número de páginas4
PublicaciónJournal of Alloys and Compounds
Volumen323-324
DOI
EstadoPublicada - 12 jul. 2001
Evento4th International Conference on f-Elements - Madrid, Espana
Duración: 17 sep. 200021 sep. 2000

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