CaAl[sub 2]O[sub 4]:Eu[sup 2+],Nd[sup 3+],Sr[sup 2+]: A White-Light Phosphor with Yellow-Green Long Afterglow
- 1 January 2009
- journal article
- Published by The Electrochemical Society in Electrochemical and Solid-State Letters
- Vol. 12 (4), J44-J46
- https://doi.org/10.1149/1.3075902
Abstract
A phosphor, with white light under irradiation and a yellow-green long afterglow, was prepared by the solid-state method. The emission spectra, afterglow spectra, and afterglow decay curve of the samples have been measured. It is found that the emission spectra under the irradiation of are comprised of the blue-light emission and the yellow-green-light emission , and the chromaticity coordinates were calculated to be , . After the irradiation source was removed, the blue emission decreased rapidly so that the white-light photoluminescence changed to the yellow-green afterglow and its persistent time was measured to be over .Keywords
This publication has 11 references indexed in Scilit:
- Effects of Sr2+ doping on the persistent luminescence properties of CaAl2O4:Eu2+, Nd3+Journal of Applied Physics, 2008
- Defect states in Nd3+-doped CaAl2O4:Eu2+Journal of Applied Physics, 2007
- A study on wall stresses induced by LaNi5 alloy hydrogen absorption–desorption cyclesJournal of Alloys and Compounds, 2005
- Luminescence of Eu2+ and Dy3+ activated R3MgSi2O8-based (R=Ca, Sr, Ba) phosphorsJournal of Alloys and Compounds, 2003
- Mechanisms of persistent luminescence in Eu2+, RE3+ doped alkaline earth aluminatesJournal of Luminescence, 2001
- Rare‐earth materials for use in the darkJournal of the Society for Information Display, 2000
- Mechanism of long phosphorescence of SrAl2O4:Eu2+, Dy3+ and CaAl2O4:Eu2+, Nd3+Journal of Luminescence, 1997
- A New Long Phosphorescent Phosphor with High Brightness, SrAl2 O 4 : Eu2 + , Dy3 +Journal of the Electrochemical Society, 1996
- Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenidesActa Crystallographica Section A, 1976
- Optical and Electrical Properties of SrAl[sub 2]O[sub 4]:Eu[sup 2+]Journal of the Electrochemical Society, 1971