標題: | White light generation under violet-blue excitation from tunable green-to-red emitting Ca2MgSi2O7 : Eu,Mn through energy transfer |
作者: | Chang, Chun-Kuei Chen, Teng-Ming 應用化學系 Department of Applied Chemistry |
公開日期: | 16-四月-2007 |
摘要: | Yellowish green-to-orange red emission can be generated by energy transfer from Eu2+ to Mn2+ in the Ca2MgSi2O7 host matrix. Eu2+-doped Ca2MgSi2O7 shows a broad green emission band centering at 528 nm and Mn2+-doped Ca2MgSi2O7 exhibits a red emission at around 602 nm. The authors have demonstrated that the mechanism of energy transfer from Eu2+ to Mn2+ in Ca2MgSi2O7:Eu,Mn phosphor is a resonant type via a dipole-quadrupole mechanism. They have also shown that the white light with varied hue, depending on contents of Mn2+, is generated by combination of predesigned emission wavelength-tunable Ca2MgSi2O7:Eu,Mn phosphors and violet-blue light source. (c) 2007 American Institute of Physics. |
URI: | http://dx.doi.org/10.1063/1.2722670 http://hdl.handle.net/11536/10892 |
ISSN: | 0003-6951 |
DOI: | 10.1063/1.2722670 |
期刊: | APPLIED PHYSICS LETTERS |
Volume: | 90 |
Issue: | 16 |
結束頁: | |
顯示於類別: | 期刊論文 |