Growth and characterization of Yb3+-doped (Lu,Y)AlO3 fiber single crystals grown by the micro-pulling-down method

Jang Bo Shim; Akira Yoshikawa; Martin Nikl; Jan Pejchal; Dae Ho Yoon; Minoru Isshiki; Tsuguo Fukuda

doi:10.1143/JJAP.43.7661

Growth and characterization of Yb³⁺-doped (Lu,Y)AlO₃ fiber single crystals grown by the micro-pulling-down method

Jang Bo Shim, Akira Yoshikawa, Martin Nikl, Jan Pejchal, Dae Ho Yoon, Minoru Isshiki, Tsuguo Fukuda

Materials Design Division

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

1 Citation (Scopus)

Abstract

Yb³⁺-doped (Lu,Y)AlO₃ single crystals have been grown by the micro-pulling-down method with a radio-frequency heating system. Starting melt compositions of Lu_xY_0.9-xYb_0.1 AlO₃ were varied with x = 0.1, 0.2, 0.35, and 0.4. The best Yb ³⁺-doped (Lu,Y)AlO₃ single crystals were obtained applying a pulling rate of 0.12 mm/min. To investigate the compositional homogeneity, the effective segregation coefficient of Lu and Yb ions was estimated k ^eff = 1.02 and 1.05 for Lu_0.2Y_0.7Yb _0.1AlO₃ crystal, respectively. Absorption, radio-luminescence and luminescence decay kinetic of Yb³⁺-doped (Lu,Y)AlO₃ was investigated for room temperature conditions and found to be similar to that of Yb³⁺-doped YAlO₃. Very fast charge transfer luminescence of Yb³⁺ in the near ultraviolet to visible spectral range and the high density of the LuAlO₃ make this material a promising candidate for fast scintillators.

Original language	English
Pages (from-to)	7661-7664
Number of pages	4
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	43
Issue number	11 A
DOIs	https://doi.org/10.1143/JJAP.43.7661
Publication status	Published - 2004 Nov 1

Keywords

Charge transfer luminescence
Lutetium orthoaluminate
Micro-pulling-down method
Perovskite
Yb doping

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/JJAP.43.7661

Cite this

Growth and characterization of Yb³⁺-doped (Lu,Y)AlO₃ fiber single crystals grown by the micro-pulling-down method. / Shim, Jang Bo; Yoshikawa, Akira; Nikl, Martin; Pejchal, Jan; Yoon, Dae Ho; Isshiki, Minoru; Fukuda, Tsuguo.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 43, No. 11 A, 01.11.2004, p. 7661-7664.

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

Shim, Jang Bo ; Yoshikawa, Akira ; Nikl, Martin ; Pejchal, Jan ; Yoon, Dae Ho ; Isshiki, Minoru ; Fukuda, Tsuguo. / Growth and characterization of Yb³⁺-doped (Lu,Y)AlO₃ fiber single crystals grown by the micro-pulling-down method. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 2004 ; Vol. 43, No. 11 A. pp. 7661-7664.

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abstract = "Yb3+-doped (Lu,Y)AlO3 single crystals have been grown by the micro-pulling-down method with a radio-frequency heating system. Starting melt compositions of LuxY0.9-xYb0.1 AlO3 were varied with x = 0.1, 0.2, 0.35, and 0.4. The best Yb 3+-doped (Lu,Y)AlO3 single crystals were obtained applying a pulling rate of 0.12 mm/min. To investigate the compositional homogeneity, the effective segregation coefficient of Lu and Yb ions was estimated k eff = 1.02 and 1.05 for Lu0.2Y0.7Yb 0.1AlO3 crystal, respectively. Absorption, radio-luminescence and luminescence decay kinetic of Yb3+-doped (Lu,Y)AlO3 was investigated for room temperature conditions and found to be similar to that of Yb3+-doped YAlO3. Very fast charge transfer luminescence of Yb3+ in the near ultraviolet to visible spectral range and the high density of the LuAlO3 make this material a promising candidate for fast scintillators.",

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