Optical characterisation of rare earths in natural fluorapatite

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

doi:10.1016/S0925-8388(01)01159-8

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 revista › Artículo de la conferencia › revisión exhaustiva

18 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 original	Inglés
Páginas (desde-hasta)	851-854
Número de páginas	4
Publicación	Journal of Alloys and Compounds
Volumen	323-324
DOI	https://doi.org/10.1016/S0925-8388(01)01159-8
Estado	Publicada - 12 jul. 2001
Evento	4th International Conference on f-Elements - Madrid, Espana Duración: 17 sep. 2000 → 21 sep. 2000

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title = "Optical characterisation of rare earths in natural fluorapatite",

abstract = "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.",

keywords = "Energy transfer, Fluorapatite, Luminescence, Rare earth, Semi-precious mineral",

author = "E. Cantelar and G. Lifante and T. Calder{\'o}n and R. Mel{\'e}ndrez and A. Mill{\'a}n and Alvarez, {M. A.} and M. Barboza-Flores",

note = "Funding Information: Work partially supported by DGES Ministerio de Educaci{\'o}n y Cultura (PB97-0019) and Comunidad de Madrid (07T/0026/1998).; 4th International Conference on f-Elements ; Conference date: 17-09-2000 Through 21-09-2000",

year = "2001",

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day = "12",

doi = "10.1016/S0925-8388(01)01159-8",

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TY - JOUR

T1 - Optical characterisation of rare earths in natural fluorapatite

AU - Cantelar, E.

AU - Lifante, G.

AU - Calderón, T.

AU - Meléndrez, R.

AU - Millán, A.

AU - Alvarez, M. A.

AU - Barboza-Flores, M.

N1 - Funding Information: Work partially supported by DGES Ministerio de Educación y Cultura (PB97-0019) and Comunidad de Madrid (07T/0026/1998).

PY - 2001/7/12

Y1 - 2001/7/12

N2 - 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.

AB - 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.

KW - Energy transfer

KW - Fluorapatite

KW - Luminescence

KW - Rare earth

KW - Semi-precious mineral

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U2 - 10.1016/S0925-8388(01)01159-8

DO - 10.1016/S0925-8388(01)01159-8

M3 - Artículo de la conferencia

AN - SCOPUS:17344385047

SN - 0925-8388

VL - 323-324

SP - 851

EP - 854

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

T2 - 4th International Conference on f-Elements

Y2 - 17 September 2000 through 21 September 2000

ER -

Optical characterisation of rare earths in natural fluorapatite

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