Highly efficient Sr3Y2(Si3O9)(2):Ce3+,Tb3+/Mn2+/Eu2+ phosphors for white LEDs: structure refinement, color tuning and energy transfer
文献类型：期刊论文
| 作者 | Zhang, MF ; Liang, YJ ; Tang, R ; Yu, DY ; Tong, MH ; Wang, Q ; Zhu, YL ; Wu, XY ; Li, GG |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2014 |
| 卷号 | 4期号:76页码:40626—40637 |
| 关键词 | LIGHT-EMITTING-DIODES HIGH QUANTUM EFFICIENCY TUNABLE LUMINESCENCE PHOTOLUMINESCENCE PROPERTIES ENHANCED LUMINESCENCE YELLOW PHOSPHOR TB3+ MN2+ MECHANISM HOST |
| ISSN号 | 2046-2069 |
| 通讯作者 | yujunliang@sohu.com ; ggli8312@gmail.com |
| 英文摘要 | A series of highly efficient and emission-tunable Sr3Y2(Si3O9)(2)(SYSO):Ce3+, Tb3+/Mn2+/Eu2+ phosphors have been prepared via a solid-state reaction. The structure refinement indicates that the as-prepared phosphors crystallized in a monoclinic phase with a space group of C2/c (no. 15), and there are three kinds of cation sites in the host lattice for the doped ions to occupy. The Ce3+ emission at different lattice sites in the SYSO host has been firstly identified and discussed. When introducing other doping ions into these cation sites, there exist efficient energy transfers from Ce3+ ions to these doping ions (Tb3+, Mn2+, and Eu2+) under UV excitation. The corresponding energy transfer mechanisms from Ce3+ to Tb3+/Mn2+/Eu2+ in SYSO:Ce3+, Tb3+/Mn2+/Eu2+ systems have been studied systematically. These energy transfers not only can enhance the luminescent efficiencies and broaden the width of emission spectra of SYSO:Ce3+, Tb3+/Mn2+/Eu2+ phosphors but also can modulate their emission colors from blue to green, orange or cyan, respectively. For example, the maximum quantum yields (QYs) of as-prepared SYSO:0.15Ce(3+), xTb(3+)/yMn(2+) phosphors can reach 90.4% and 74% at x - 0.70, y - 0.01, respectively. Based on these experiment results, the as-prepared SYSO:Ce3+, Tb3+/Mn2+/Eu2+ phosphors can act as potential color-tunable and emission band-widened phosphors for possible applications in ultraviolet light based white LEDs. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000341936400068 |
| 公开日期 | 2015-03-13 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/14172]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Zhang, MF,Liang, YJ,Tang, R,et al. Highly efficient Sr3Y2(Si3O9)(2):Ce3+,Tb3+/Mn2+/Eu2+ phosphors for white LEDs: structure refinement, color tuning and energy transfer[J]. RSC ADVANCES,2014,4(76):40626—40637. |
| APA | Zhang, MF.,Liang, YJ.,Tang, R.,Yu, DY.,Tong, MH.,...&Li, GG.(2014).Highly efficient Sr3Y2(Si3O9)(2):Ce3+,Tb3+/Mn2+/Eu2+ phosphors for white LEDs: structure refinement, color tuning and energy transfer.RSC ADVANCES,4(76),40626—40637. |
| MLA | Zhang, MF,et al."Highly efficient Sr3Y2(Si3O9)(2):Ce3+,Tb3+/Mn2+/Eu2+ phosphors for white LEDs: structure refinement, color tuning and energy transfer".RSC ADVANCES 4.76(2014):40626—40637. |
入库方式： OAI收割
来源：上海应用物理研究所
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