Site Selective Excitation and Energy Transfer in LiKGdF5 Crystal Co-doped with Er3+ and Tb3+
来源期刊：JOURNAL OF RARE EARTHS2004年第1期
论文作者：尹民
Key words：optics; condensed matter physics; energy transfer; luminescence; LiKGdF5∶Er3+,Tb3+; rare earths;
Abstract: Crystals of LiKGdF5∶Er3+, Tb3+ grown by the hydrothermal synthesis technique with concentrations of 2% and 0.4% were analysed. By using site selective excitation measured at low temperature, luminescence and excitation spectra from Er3+ and Tb3+ ions embedded in LiKGdF5 were clearly separated. The lifetimes of the emitting levels 4S3/2 of Er3+ and 5D4 of Tb3+ were also determined. Following the site selective spectroscopy study, the dominant energy transfer process from Tb3+ to Er3+ in the crystal was then investigated via transient experiments.
尹民1
(1.Structure Research Laboratory, University of Science and Technology of China, Hefei 230026, China;
2. Institut de Physique Nucléaire, CNRS-IN2P3, 91406 Orsay Cedex, France)
Abstract:Crystals of LiKGdF5∶Er3+, Tb3+ grown by the hydrothermal synthesis technique with concentrations of 2% and 0.4% were analysed. By using site selective excitation measured at low temperature, luminescence and excitation spectra from Er3+ and Tb3+ ions embedded in LiKGdF5 were clearly separated. The lifetimes of the emitting levels 4S3/2 of Er3+ and 5D4 of Tb3+ were also determined. Following the site selective spectroscopy study, the dominant energy transfer process from Tb3+ to Er3+ in the crystal was then investigated via transient experiments.
Key words:optics; condensed matter physics; energy transfer; luminescence; LiKGdF5∶Er3+,Tb3+; rare earths;
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