| 纳米纤维状Sr3Al2O5Cl2:Eu2+,Tm3+的白色长余辉性能 |
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| 引用本文： | 张秋函,谭慧英,刘永冲,张艺颖,汪正良.纳米纤维状Sr3Al2O5Cl2:Eu2+,Tm3+的白色长余辉性能[J].发光学报,2017,38(6):697-701. |
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| 作者姓名： | 张秋函 谭慧英 刘永冲 张艺颖 汪正良 |
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| 作者单位： | 云南民族大学 化学与环境学院民族地区矿产资源综合利用重点实验室, 云南 昆明 650500 |
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| 基金项目： | 国家自然科学基金（21261027）资助项目 |
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| 摘 要： | 采用高温固相法在800℃下制备出系列白色长余辉荧光粉Sr3Al2O5Cl2：Eu2+，Tm3+，并研究了它们的结构、形貌及发光性能。样品Sr2.91Al2O5Cl2：0.04Eu2+，0.05 Tm3+具有单一晶相和纳米纤维结构。该样品在紫外光激发下表现出两个很强的宽带发射（分别位于~448 nm和~590 nm）。它的余辉寿命大约是20 min。利用此种荧光粉所制作出的白光LED器件表现出很强的白光发射。
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| 关 键 词： | 长余辉性能 荧光粉 发光性能 |
| 收稿时间： | 2016-11-28 |
White Long Persistent Phenomenon from Sr3Al2O5Cl2:Eu2+, Tm3+ Nano-fiber |
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| ZHANG Qiu-han,TAN Hui-ying,LIU Yong-chong,ZHANG Yi-ying,WANG Zheng-liang.White Long Persistent Phenomenon from Sr3Al2O5Cl2:Eu2+, Tm3+ Nano-fiber[J].Chinese Journal of Luminescence,2017,38(6):697-701. |
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| Authors: | ZHANG Qiu-han TAN Hui-ying LIU Yong-chong ZHANG Yi-ying WANG Zheng-liang |
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| Institution: | Key Laboratory of Comprehensive Utilization of Mineral Resource in Ethnic Regions, School of Chemistry & Environment, Yunnan Minzu University, Kunming 650500, China |
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| Abstract: | White long persistent phosphors, Sr3Al2O5Cl2∶Eu2+, Tm3+, have been successfully prepared by the solid state reaction at 800 ℃. The as-prepared sample Sr2.91Al2O5Cl2∶0.04Eu2+, 0.05 Tm3+ shares single phase and regular nano-fiber morphology. This sample exhibits two broad emission bands located at ~ 448 nm and ~ 590 nm, respectively, and its white persistent duration is about 20 min (> 0.35 mcd/m2). At last, intense white light can be found from the white light-emitting diode with Sr2.91Al2O5Cl2∶0.04Eu2+, 0.05 Tm3+. |
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| Keywords: | long persistent properties phosphors photo-luminescent properties |
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