| Photoluminescence properties and effect of Bi~（3＋） dopant of Eu~（3＋） and Dy~（3＋） co-doped Sr_3V_2O_8 |
| |
| 引用本文： | 马倩,马永青,钱仕兵,吴丹丹,郑赣鸿,吴明在,李广.Photoluminescence properties and effect of Bi~（3＋） dopant of Eu~（3＋） and Dy~（3＋） co-doped Sr_3V_2O_8[J].中国稀土学报(英文版),2012,30(5):426-430. |
| |
| 作者姓名： | 马倩 马永青 钱仕兵 吴丹丹 郑赣鸿 吴明在 李广 |
| |
| 作者单位： | Anhui Key Laboratory of Information Materials and Devices, School of Physics and Materials Science, Anhui University, Hefei 230039, China |
| |
| 基金项目： | supported by National Natural Science Foundation of China （11174004）;Higher Educational Natural Science Foundation of Anhui Province （KJ2010A012） |
| |
| 摘 要： | Photoluminescence properties of Sr 2.5 Dy 1/3-x Eu x V 2 O 8(x=0,0.06,0.12,0.18,0.24,0.33) were investigated.The excitation spectra included a broad band in the short wavelength region and several sharp lines in the longer wavelength region,and the spectral origin were discussed.The emission spectra were measured in two different exciting ways,i.e.,exciting the VO 4 group at 270 nm and the Eu 3+ ion at 398 nm,respectively,and the energy transferring process was reasonably suggested.Furthermore,multi-color emission could be achieved in Sr 2.5 Dy 1/3-x Eu x V 2 O 8,indicating that the studied samples had potential applications in the white light emitting diodes.Further investigation showed that reducing the concentration of Eu 3+ and Dy 3+ and introducing Bi 3+ as a sensitizer ion greatly enhanced the emission intensity.
|
| 关 键 词： | photoluminescence multi-color emission rare earth ions energy transferring process sensitizerion |
| 收稿时间： | 26 October 2011 |
| 本文献已被 CNKI 维普 ScienceDirect 等数据库收录！ |
|
