Concentration quenching of Tb3+luminescence in Tb xA3-xAl5O12 (A=Yb, Y) single crystals

M. Nikl; N. Solovieva; M. Dusek; Akira Yoshikawa; Yuji Kagamitani; T. Fukuda

Concentration quenching of Tb3+luminescence in Tb xA3-xAl5O12 (A=Yb, Y) single crystals

M. Nikl, N. Solovieva, M. Dusek, Akira Yoshikawa, Yuji Kagamitani, T. Fukuda

Materials Property Division

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Tb-doped Yb₃Al₅O₁₂ and Y ₃Al₅O₁₂ single crystals were grown by the micropulling-down method in the form of rods of 2 mm diameter and a few cm in length. Emission spectra and decay times of Tb³⁺ luminescent centers were measured for Tb concentrations in a Y(Yb) sublattice of (1-70) %. A noticeable decrease of the emission intensity and decay time was obtained for Tb concentrations above 15% and 30% for Y₃Al₅O₁₂ and Yb₃Al₅O₁₂ hosts, respectively. Both effects are ascribed to the concentration quenching of Tb³⁺ luminescence due to energy migration over the Tb³⁺ subsystem and subsequent energy transfer to unspecified nonradiative traps. Energy migration process and structural aspects are discussed.

Original language	English
Pages (from-to)	112-114
Number of pages	3
Journal	Journal of Ceramic Processing Research
Volume	4
Issue number	3
Publication status	Published - 2003 Dec 1

Keywords

Concentration quenching
Luminescence
Micropulling-down crystal growth
Rare earth ions

ASJC Scopus subject areas

Ceramics and Composites

Cite this

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title = "Concentration quenching of Tb3+luminescence in Tb xA3-xAl5O12 (A=Yb, Y) single crystals",

abstract = "Tb-doped Yb3Al5O12 and Y 3Al5O12 single crystals were grown by the micropulling-down method in the form of rods of 2 mm diameter and a few cm in length. Emission spectra and decay times of Tb3+ luminescent centers were measured for Tb concentrations in a Y(Yb) sublattice of (1-70) %. A noticeable decrease of the emission intensity and decay time was obtained for Tb concentrations above 15% and 30% for Y3Al5O12 and Yb3Al5O12 hosts, respectively. Both effects are ascribed to the concentration quenching of Tb3+ luminescence due to energy migration over the Tb3+ subsystem and subsequent energy transfer to unspecified nonradiative traps. Energy migration process and structural aspects are discussed.",

keywords = "Concentration quenching, Luminescence, Micropulling-down crystal growth, Rare earth ions",

author = "M. Nikl and N. Solovieva and M. Dusek and Akira Yoshikawa and Yuji Kagamitani and T. Fukuda",

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T1 - Concentration quenching of Tb3+luminescence in Tb xA3-xAl5O12 (A=Yb, Y) single crystals

AU - Nikl, M.

AU - Solovieva, N.

AU - Dusek, M.

AU - Yoshikawa, Akira

AU - Kagamitani, Yuji

AU - Fukuda, T.

PY - 2003/12/1

Y1 - 2003/12/1

N2 - Tb-doped Yb3Al5O12 and Y 3Al5O12 single crystals were grown by the micropulling-down method in the form of rods of 2 mm diameter and a few cm in length. Emission spectra and decay times of Tb3+ luminescent centers were measured for Tb concentrations in a Y(Yb) sublattice of (1-70) %. A noticeable decrease of the emission intensity and decay time was obtained for Tb concentrations above 15% and 30% for Y3Al5O12 and Yb3Al5O12 hosts, respectively. Both effects are ascribed to the concentration quenching of Tb3+ luminescence due to energy migration over the Tb3+ subsystem and subsequent energy transfer to unspecified nonradiative traps. Energy migration process and structural aspects are discussed.

AB - Tb-doped Yb3Al5O12 and Y 3Al5O12 single crystals were grown by the micropulling-down method in the form of rods of 2 mm diameter and a few cm in length. Emission spectra and decay times of Tb3+ luminescent centers were measured for Tb concentrations in a Y(Yb) sublattice of (1-70) %. A noticeable decrease of the emission intensity and decay time was obtained for Tb concentrations above 15% and 30% for Y3Al5O12 and Yb3Al5O12 hosts, respectively. Both effects are ascribed to the concentration quenching of Tb3+ luminescence due to energy migration over the Tb3+ subsystem and subsequent energy transfer to unspecified nonradiative traps. Energy migration process and structural aspects are discussed.

KW - Concentration quenching

KW - Luminescence

KW - Micropulling-down crystal growth

KW - Rare earth ions

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Concentration quenching of Tb3+luminescence in Tb xA3-xAl5O12 (A=Yb, Y) single crystals

Abstract

Keywords

ASJC Scopus subject areas

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