Crystal growth and characterization of Eu 2+, Dy 3+ : SrAl 2O 4 and Eu 2+, Nd 3+ : CaAl 2O 4 by the LHPG method

Single crystals of rare-earth-doped aluminates of alkaline earth SrAl 2O 4 : Eu 2+, Dy 3+ and CaAl 2O 4 : Eu 2+, Nd 3+, were grown by the laser-heated pedestal growth method. They show bright and long persistent green and purple phosphorescence, respectively. The decay dynamics of the afterglow and...

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Bibliographic Details
Published inJournal of crystal growth Vol. 200; no. 1; pp. 179 - 184
Main Authors Jia, Weiyi, Yuan, Huabiao, Lu, Lizhu, Liu, Huimin, Yen, William M
Format Journal Article
LanguageEnglish
Published Elsevier B.V 1999
Subjects
CaAl 2O 4 : Eu, Nd
Laser heated pedestal growth
Phosphorescent crystals
SrAl 2O 4 : Eu, Dy
Thermoluminescence
Phosphorescent crystals
Laser heated pedestal growth
SrAl 2O 4 : Eu, Dy
CaAl 2O 4 : Eu, Nd
Thermoluminescence
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Summary:Single crystals of rare-earth-doped aluminates of alkaline earth SrAl 2O 4 : Eu 2+, Dy 3+ and CaAl 2O 4 : Eu 2+, Nd 3+, were grown by the laser-heated pedestal growth method. They show bright and long persistent green and purple phosphorescence, respectively. The decay dynamics of the afterglow and the thermoluminescence properties of the samples indicate that multiple trapping centers are involved in the phosphorescence dynamic processes.
ISSN:0022-0248
1873-5002
DOI:10.1016/S0022-0248(98)01099-9