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

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

20 Scopus citations

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.

Original language	English
Pages (from-to)	851-854
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	323-324
DOIs	https://doi.org/10.1016/S0925-8388(01)01159-8
State	Published - 12 Jul 2001
Event	4th International Conference on f-Elements - Madrid, Spain Duration: 17 Sep 2000 → 21 Sep 2000

Bibliographical note

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

Keywords

Energy transfer
Fluorapatite
Luminescence
Rare earth
Semi-precious mineral

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10.1016/S0925-8388(01)01159-8

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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",

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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

Abstract

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Keywords

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