Structure and scintillation yield of Ce-doped Al–Ga substituted yttrium garnet

[Display omitted] ► Range of Y3(Al1−xGax)5O12:Ce solid solution crystals are grown from melt by the Czochralski method. ► Light yield of mixed crystals reaches 130% of the YAG:Ce value at x∼0.4. ► ∼1% of antisite defects is formed in YGG:Ce, but no evidence of this is obtained for the rest of crysta...

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Bibliographic Details
Published in:Materials research bulletin 2012-11, Vol.47 (11), p.3249-3252
Main Authors: Sidletskiy, Oleg, Kononets, Valerii, Lebbou, Kheirreddine, Neicheva, Svetlana, Voloshina, Olesya, Bondar, Valerii, Baumer, Vyacheslav, Belikov, Konstantin, Gektin, Alexander, Grinyov, Boris, Joubert, Marie-France
Format: Article
Language:English
Subjects:
A. Oxides
B. Crystal growth
C. X-ray diffraction
CRYSTAL LATTICES
CRYSTALS
CZOCHRALSKI METHOD
D. Luminescence
DOPED MATERIALS
EMISSION SPECTROSCOPY
GARNETS
LUMINESCENCE
MATERIALS SCIENCE
NEODYMIUM LASERS
SCINTILLATIONS
SOLID SOLUTIONS
X-RAY DIFFRACTION
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Summary:[Display omitted] ► Range of Y3(Al1−xGax)5O12:Ce solid solution crystals are grown from melt by the Czochralski method. ► Light yield of mixed crystals reaches 130% of the YAG:Ce value at x∼0.4. ► ∼1% of antisite defects is formed in YGG:Ce, but no evidence of this is obtained for the rest of crystals. Structure and scintillation yield of Y3(Al1−xGax)5O12:Ce solid solution crystals are studied. Crystals are grown from melt by the Czochralski method. Distribution of host cations in crystal lattice is determined. Quantity of antisite defects in crystals is evaluated using XRD and atomic emission spectroscopy data. Trend of light output at Al/Ga substitution in Y3(Al1−xGax)5O12:Ce is determined for the first time. Light output in mixed crystals reaches 130% comparative to Ce-doped yttrium–aluminum garnet. Luminescence properties at Al/Ga substitution are evaluated.
ISSN:0025-5408
1873-4227
DOI:10.1016/j.materresbull.2012.08.004