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Luminescent Properties of the Multicolor Afterglow Phosphors Ca 3 SnSi 2 O 9 : Re 3+ ( Re = Pr, Tb, Sm)
Author(s) -
Xu Xuhui,
Wang Yuhua,
Zeng Wei,
Gong Yu,
Liu Bitao
Publication year - 2011
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2011.04820.x
Subject(s) - phosphor , phosphorescence , afterglow , luminescence , ion , thermoluminescence , persistent luminescence , doping , energy transfer , rare earth , chemistry , analytical chemistry (journal) , mineralogy , materials science , fluorescence , optoelectronics , physics , chemical physics , optics , environmental chemistry , gamma ray burst , organic chemistry , astronomy
Without doping any rare‐earth ions, Ca 3 SnSi 2 O 9 emits blue light and exhibits weak long‐lasting phosphorescence. By selecting appropriate rare‐earth ions doped into the host, multicolor phosphorescence can be obtained from Ca 3 SnSi 2 O 9 : Re 3+ ( Re = Pr, Tb, Sm) after excitation at 316 nm, which is due to the persistent energy transfer between the host and rare‐earth ions. The thermoluminescence results indicate that the introduction of Re 3+ ( Re = Pr, Tb, Sm) produces more suitable traps (V Ca' ') depth at 360 K, which make an important contribution to the more excellent long persistent luminescence phenomena.