A. Srivastava—contributing editor
Investigation of Ce–Mn Energy Transfer in SrAl2O4:Ce3+,Mn2+
Article first published online: 26 AUG 2010
© 2010 The American Ceramic Society
Journal of the American Ceramic Society
Volume 94, Issue 1, pages 160–163, January 2011
How to Cite
Xu, X., Wang, Y., Yu, X., Li, Y. and Gong, Y. (2011), Investigation of Ce–Mn Energy Transfer in SrAl2O4:Ce3+,Mn2+. Journal of the American Ceramic Society, 94: 160–163. doi: 10.1111/j.1551-2916.2010.04061.x
This work was financially supported by the National Science Foundation for Distinguished Young Scholars (No. 50925206).
- Issue published online: 5 JAN 2011
- Article first published online: 26 AUG 2010
- Manuscript No. 27214. Received December 8, 2009; approved June 24, 2010.
Ce3+ and Mn2+ singly doped and codoped SrAl2O4 phosphors were prepared by the solid-state reaction. Ce3+- and Mn2+-codoped SrAl2O4 phosphor shows tunable blue to green emission. Apart from the emission band of Ce3+ at 374 nm, which ascribes to the site of Sr2+ occupied by Ce3+, the emission of Mn2+ located at 515 nm was also observed for the energy transferred from Ce3+ to Mn2+ in SrAl2O4:Ce3+,Mn2+. By appropriately tuning the activator content, the developed phosphors can generate lights from blue to green region. In addition, green phosphorescence from Mn2+ was observed in the codoped system, which was due to the persistent energy transfer between Ce3+ and Mn2+. The finding suggests a promising approach to controlling the color of the photoluminescence and phosphorescence of persistent phosphors.