Shaped single crystal growth and scintillating application of Yb:(Gd,Lu)3(Ga,Al)5O12 solid solutions

A. Novosselov; A. Yoshikawa; H. Ogino; M. Nikl; J. Pejchal; T. Fukuda

doi:10.1016/j.optmat.2003.12.016

Shaped single crystal growth and scintillating application of Yb:(Gd,Lu)₃(Ga,Al)₅O₁₂ solid solutions

A. Novosselov, A. Yoshikawa, H. Ogino, M. Nikl, J. Pejchal, T. Fukuda

IMR - Materials Design Division

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

4 Citations (Scopus)

Abstract

Shaped single crystals of (Yb_0.05Lu_xGd _0.95-x)Ga₅O₁₂ (0.0≤x≤0.9) and Yb _0.15Gd_0.15Lu_2.7(Al_xGa _1-x)O₁₂ (0.0≤x≤1.0) were grown by the modified micro-pulling-down method. Continuous solid solutions with garnet structure and a linear compositional dependency of crystal lattice parameter in the system Yb:(Gd,Lu)₃(Ga,Al)₅O₁₂ are formed. Measured optical absorption spectra of the samples show 4f-4f transitions related to Gd³⁺ ion at 275 and 310 nm, and also an onset of charge transfer transitions from oxygen ligands to Gd³⁺ or Yb³⁺ cations below 240 nm. A complete absence of Yb³⁺ charge transfer luminescence under X-ray excitation in any of the investigated samples was explained by the overlapping of charge transfer absorption of Yb³⁺ by that of Gd ³⁺ ions. For specific composition of Lu_1.5Gd _1.5Ga₅O₁₂ an intense defect - host lattice-related emission, which achieve of about 40% integrated intensity compared with Bi₄Ge₃O₁₂, was found.

Original language	English
Pages (from-to)	541-543
Number of pages	3
Journal	Optical Materials
Volume	26
Issue number	4
DOIs	https://doi.org/10.1016/j.optmat.2003.12.016
Publication status	Published - 2004 Sept

Keywords

Characterization
Garnet
Single crystal growth
Solid solutions
Yb

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10.1016/j.optmat.2003.12.016

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@article{d1035f30dd47478eba2d32d9bed44076,

title = "Shaped single crystal growth and scintillating application of Yb:(Gd,Lu)3(Ga,Al)5O12 solid solutions",

abstract = "Shaped single crystals of (Yb0.05LuxGd 0.95-x)Ga5O12 (0.0≤x≤0.9) and Yb 0.15Gd0.15Lu2.7(AlxGa 1-x)O12 (0.0≤x≤1.0) were grown by the modified micro-pulling-down method. Continuous solid solutions with garnet structure and a linear compositional dependency of crystal lattice parameter in the system Yb:(Gd,Lu)3(Ga,Al)5O12 are formed. Measured optical absorption spectra of the samples show 4f-4f transitions related to Gd3+ ion at 275 and 310 nm, and also an onset of charge transfer transitions from oxygen ligands to Gd3+ or Yb3+ cations below 240 nm. A complete absence of Yb3+ charge transfer luminescence under X-ray excitation in any of the investigated samples was explained by the overlapping of charge transfer absorption of Yb3+ by that of Gd 3+ ions. For specific composition of Lu1.5Gd 1.5Ga5O12 an intense defect - host lattice-related emission, which achieve of about 40% integrated intensity compared with Bi4Ge3O12, was found.",

keywords = "Characterization, Garnet, Single crystal growth, Solid solutions, Yb",

author = "A. Novosselov and A. Yoshikawa and H. Ogino and M. Nikl and J. Pejchal and T. Fukuda",

note = "Funding Information: This work was partially supported by the Ministry of Education, Culture, Sports, Science and Technology of Japan, Grant-in-Aid for Young Scientists (A), 15686001, 2003 (AY). Partial support of Czech Research Project K1010104 is gratefully acknowledged.",

year = "2004",

month = sep,

doi = "10.1016/j.optmat.2003.12.016",

language = "English",

volume = "26",

pages = "541--543",

journal = "Optical Materials",

issn = "0925-3467",

publisher = "Elsevier",

number = "4",

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TY - JOUR

T1 - Shaped single crystal growth and scintillating application of Yb:(Gd,Lu)3(Ga,Al)5O12 solid solutions

AU - Novosselov, A.

AU - Yoshikawa, A.

AU - Ogino, H.

AU - Nikl, M.

AU - Pejchal, J.

AU - Fukuda, T.

N1 - Funding Information: This work was partially supported by the Ministry of Education, Culture, Sports, Science and Technology of Japan, Grant-in-Aid for Young Scientists (A), 15686001, 2003 (AY). Partial support of Czech Research Project K1010104 is gratefully acknowledged.

PY - 2004/9

Y1 - 2004/9

N2 - Shaped single crystals of (Yb0.05LuxGd 0.95-x)Ga5O12 (0.0≤x≤0.9) and Yb 0.15Gd0.15Lu2.7(AlxGa 1-x)O12 (0.0≤x≤1.0) were grown by the modified micro-pulling-down method. Continuous solid solutions with garnet structure and a linear compositional dependency of crystal lattice parameter in the system Yb:(Gd,Lu)3(Ga,Al)5O12 are formed. Measured optical absorption spectra of the samples show 4f-4f transitions related to Gd3+ ion at 275 and 310 nm, and also an onset of charge transfer transitions from oxygen ligands to Gd3+ or Yb3+ cations below 240 nm. A complete absence of Yb3+ charge transfer luminescence under X-ray excitation in any of the investigated samples was explained by the overlapping of charge transfer absorption of Yb3+ by that of Gd 3+ ions. For specific composition of Lu1.5Gd 1.5Ga5O12 an intense defect - host lattice-related emission, which achieve of about 40% integrated intensity compared with Bi4Ge3O12, was found.

AB - Shaped single crystals of (Yb0.05LuxGd 0.95-x)Ga5O12 (0.0≤x≤0.9) and Yb 0.15Gd0.15Lu2.7(AlxGa 1-x)O12 (0.0≤x≤1.0) were grown by the modified micro-pulling-down method. Continuous solid solutions with garnet structure and a linear compositional dependency of crystal lattice parameter in the system Yb:(Gd,Lu)3(Ga,Al)5O12 are formed. Measured optical absorption spectra of the samples show 4f-4f transitions related to Gd3+ ion at 275 and 310 nm, and also an onset of charge transfer transitions from oxygen ligands to Gd3+ or Yb3+ cations below 240 nm. A complete absence of Yb3+ charge transfer luminescence under X-ray excitation in any of the investigated samples was explained by the overlapping of charge transfer absorption of Yb3+ by that of Gd 3+ ions. For specific composition of Lu1.5Gd 1.5Ga5O12 an intense defect - host lattice-related emission, which achieve of about 40% integrated intensity compared with Bi4Ge3O12, was found.

KW - Characterization

KW - Garnet

KW - Single crystal growth

KW - Solid solutions

KW - Yb

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M3 - Article

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SN - 0925-3467

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JO - Optical Materials

JF - Optical Materials

IS - 4

ER -

Shaped single crystal growth and scintillating application of Yb:(Gd,Lu)₃(Ga,Al)₅O₁₂ solid solutions

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Keywords

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