| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7902086 | Journal of Non-Crystalline Solids | 2014 | 5 Pages |
Abstract
A series of Ce3Â +/Sm3Â + doped glasses were prepared in this study and their luminescence properties were analyzed. A combination of blue and orange-red emission band was observed from these glasses, and tunable white light emission could be observed by adjusting concentration ratio of Ce3Â + to Sm3Â + under UV light excitation. Energy transfer (ET) from Ce3Â + to Sm3Â + is discovered by directly observing significant overlap of the excitation spectrum of Sm3Â + and the emission spectrum of Ce3Â + ions. The energy transfer from Ce3Â + to Sm3Â + via a dipole-dipole mechanism was confirmed by the luminescence spectra, the decay lifetime and the calculation of energy transfer efficiency of the glasses. Based on the results in this study, the Ce3Â +/Sm3Â + doped glasses could be used as a potential matrix material for ultraviolet light emitting diode (LED) chip based white LEDs.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Hongping Ma, Renguang Ye, Yuqing Gao, Youjie Hua, Degang Deng, Qinghua Yang, Shiqing Xu,