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Long afterglow properties of the blue emission from Pr3+-activated Sr5Ta4O15 phosphor.
- Source :
-
Displays . Apr2018, Vol. 52, p40-45. 6p. - Publication Year :
- 2018
-
Abstract
- In this study, a novel blue emitting long afterglow (LAG) material based on Pr 3+ -doped Sr 5 Ta 4 O 15 was prepared successfully using a conventional solid-state reaction method. The photoluminescence spectra, excited-state decay curve, LAG decay curve, and thermoluminescence glow curve were obtained to investigate the properities of Sr 5 Ta 4 O 15 :Pr 3+ systematically. The blue LAG emission from Pr 3+ was observed after excitation with a 254-nm ultraviolet lamp. The optimal doping concentration of Pr 3+ for the best LAG performance was experimentally determined to be approximately 4 mol%. Based on the experimental results, a possible model was constructed to illustrate the mechanism of LAG in detail. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01419382
- Volume :
- 52
- Database :
- Academic Search Index
- Journal :
- Displays
- Publication Type :
- Academic Journal
- Accession number :
- 129374258
- Full Text :
- https://doi.org/10.1016/j.displa.2018.03.001