J. Ballato—contributing editor
Structure and Novel Optical Characteristics of SrSi2O2N2:Ce3+/Tb3+ Oxynitride Phosphors
Article first published online: 1 APR 2011
© 2011 The American Ceramic Society
Journal of the American Ceramic Society
Volume 94, Issue 10, pages 3256–3260, October 2011
How to Cite
Hsu, C.-H., Cheng, B.-M. and Lu, C.-H. (2011), Structure and Novel Optical Characteristics of SrSi2O2N2:Ce3+/Tb3+ Oxynitride Phosphors. Journal of the American Ceramic Society, 94: 3256–3260. doi: 10.1111/j.1551-2916.2011.04469.x
This research was financially supported by National Science Council of the Republic of China, Taiwan, for under Contract No. NSC97-2221-E-002-108-MY3.
- Issue published online: 4 OCT 2011
- Article first published online: 1 APR 2011
- Manuscript No. 28558. Received September 5, 2010; approved January 25, 2011.
A microwave-assisted hydrothermal route was developed for preparing (Sr1−x−yCexTby)Si2O2−δN2+μ phosphors. Both the required calcination temperatures and heating duration were markedly reduced as compared with the solid-state reaction. With a rise in the calcination temperatures, the emission intensity of Ce3+-doped phosphors decreased due to the thermal quenching effects. For Tb3+-doped phosphors, the emission intensities of the splitting peaks were influenced by the thermal interaction between the Tb3+ energy levels. It is found that the Ce3+- and Tb3+-doped SrSi2O2N2 phosphors demonstrate great absorption in the vacuum ultraviolet region and are therefore suitable for application in plasma display panels. While Ce3+ and Tb3+ were codoped into SrSi2O2N2, the emission spectra exhibited the combination of the Ce3+ and Tb3+ emission peaks. The energy transfer process from Tb3+ to Ce3+ via the electrostatic interaction was also investigated in detail.