Growth and luminescent properties of scintillators based on the single crystalline films of Lu{sub 3−x}Gd{sub x}Al{sub 5}O{sub 12}:Ce garnet

Journal Article · Wed Apr 15 04:00:00 EDT 2015 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2015.01.020· OSTI ID:22475741

Zorenko, Yu ^[1]; Gorbenko, V. ^[1]; Vasylkiv, Ja ^[2]; Zelenyj, A. ^[3]; Fedorov, A. ^[4]; Kucerkova, R.; Mares, J. A.; Nikl, M. ^[5]; Bilski, P.; Twardak, A. ^[6]

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1. Institute of Physics, Kazimierz Wielki University in Bydgoszcz, 85090 Bydgoszcz (Poland)
2. Laboratory for Optoelectronic Materials, Department of Electronics of Ivan Franko National University of Lviv, 79017 Lviv (Ukraine)
3. Danylo Halytskyy Lviv National Medical University, 79010 Lviv (Ukraine)
4. Institute for Scintillation Materials, NAS of Ukraine, 61001 Kharkiv (Ukraine)
5. Institute of Physics, AS CR, 16253 Prague (Czech Republic)
6. Institute of Nuclear Physic, Polish Academy of Science, 31-342 Krakow (Poland)

Highlights: • Single crystalline films of Lu{sub 3−x}Gd{sub x}Al{sub 5}O{sub 12} garnets at x = 0 ÷ 3.0 were grown by LPE method onto YAG substrates. • Lattice constant of Lu{sub 3−}Gd{sub x}Al{sub 5}O{sub 12}:Ce film and the misfit m between films and YAG substrate changed linearly with increasing of Gd content. • Effective Gd{sup 3+}–Ce{sup 3+} energy transfer occurs in the Lu{sub 3−x}Gd{sub x}Al{sub 5}O{sub 12}:Ce films. • Best scintillation light yield is observed in the Lu{sub 3}Al{sub 5}O{sub 12}:Ce and Lu{sub 2.4}Gd{sub 0.6}Al{sub 5}O{sub 12}:Ce films. • Increase of the Gd content in x = 1.5–2.5 range results in decreasing the scintillation LY of Lu{sub 3−x}Gd{sub x}Al{sub 5}O{sub 12}:Ce films. - Abstract: The work is related to the growth of scintillators based on the single crystalline films (SCF) of Ce{sup 3+} doped Lu{sub 3−}Gd{sub x}Al{sub 5}O{sub 12} mixed rare-earth garnets by Liquid Phase Epitaxy (LPE) method. We have shown, that full set of Lu{sub 3−}Gd{sub x}Al{sub 5}O{sub 12} SCFs with x values ranging from 0 to 3.0 can be successfully crystallized by the LPE method onto Y{sub 3}Al{sub 5}O{sub 12} (YAG) substrates from the melt-solutions based on PbO-B{sub 2}O{sub 3} flux. The absorption, X-ray excited luminescence, photoluminescence, thermoluminescence and light yield measurements, the latter under excitation by α-particles of {sup 239}Pu and {sup 241}Am radioisotopes, were applied for their characterization.

• OSTI ID: 22475741
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 64; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
ALUMINATES
CERIUM ADDITIONS
CRYSTAL STRUCTURE
DEFECTS
DOPED MATERIALS
EXCITATION
GADOLINIUM COMPOUNDS
GARNETS
LATTICE PARAMETERS
LIQUID PHASE EPITAXY
LUTETIUM COMPOUNDS
MONOCRYSTALS
OPTICAL PROPERTIES
PHOSPHORS
PHOTOLUMINESCENCE
SCINTILLATIONS
THERMOLUMINESCENCE
THIN FILMS
X-RAY DIFFRACTION