On the origin of cerium-related centres in lead-containing single crystalline films of Y2SiO5:Ce and Lu2SiO5:Ce
Result description
Absorption, electron spin resonance, and photo- and thermally stimulated luminescence characteristics are studied for single crystalline films (SCFs) of Y2SiO5 :Ce and Lu2SiO5 : Ce prepared by the liquid phase epitaxy method with the use of a PbO-containing flux. It is suggested that stable tetravalent Ce4+ ions mainly exist in the SCF due to a large concentration of Pb2+ ions whose excess volume and negative charge can be effectively compensated by relatively small tetravalent Ce4+ ions. Nevertheless,the characteristic Ce3+ emission in the SCFs of Y2SiO5 :Ce and Lu2SiO5 :Ce does appear under photoexcitation in the charge-transfer absorption region (Eexc > 4.2 eV), most probably as a result of the two-photon excitation process.
Keywords
The result's identifiers
Result code in IS VaVaI
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
On the origin of cerium-related centres in lead-containing single crystalline films of Y2SiO5:Ce and Lu2SiO5:Ce
Original language description
Absorption, electron spin resonance, and photo- and thermally stimulated luminescence characteristics are studied for single crystalline films (SCFs) of Y2SiO5 :Ce and Lu2SiO5 : Ce prepared by the liquid phase epitaxy method with the use of a PbO-containing flux. It is suggested that stable tetravalent Ce4+ ions mainly exist in the SCF due to a large concentration of Pb2+ ions whose excess volume and negative charge can be effectively compensated by relatively small tetravalent Ce4+ ions. Nevertheless,the characteristic Ce3+ emission in the SCFs of Y2SiO5 :Ce and Lu2SiO5 :Ce does appear under photoexcitation in the charge-transfer absorption region (Eexc > 4.2 eV), most probably as a result of the two-photon excitation process.
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
GAP204/12/0805: Advanced material solutions for thin film scintillators and light transformers
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physics D-Applied Physics
ISSN
0022-3727
e-ISSN
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Volume of the periodical
47
Issue of the periodical within the volume
6
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
1-7
UT code for WoS article
000331468100021
EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
BM - Solid-state physics and magnetism
Year of implementation
2014