期刊
CHINESE PHYSICS LETTERS
卷 28, 期 7, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0256-307X/28/7/077803
关键词
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资金
- National Natural Science Foundation of China [60877029, 10904109, 60977035, 60907021]
- Natural Science Foundation of Tianjin [09JCYBJC01400, 11JCYBJC00300]
- Natural Science Foundation of the Tianjin Education Committee [20071207]
- Tianjin Key Subject for Materials Physics and Chemistry
KBr:Pr with a submicron rod structure is successfully synthesized by a solid-state reaction using absolute alcohol as the abrasive. X-ray diffraction, scanning electron microscopy, photoluminescence spectra and fluorescence decay curves are used to characterize the resulting materials. The influences of Pr3+ dopant concentration on the luminescence and lifetime are discussed. Furthermore, luminescent measurements show that KBr:Pr has a high emission intensity compared with other Pr-doped matrixes, which is related to the low phonon energy of KBr. The results suggest that the phonon energy of the host is important in determining the luminescent efficiency.
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