White Long Persistent Phenomenon from Sr3Al2O5Cl2:Eu2+, Tm3+ Nano-fiber

ZHANG Qiu-han; TAN Hui-ying; LIU Yong-chong; ZHANG Yi-ying; WANG Zheng-liang

doi:10.3788/fgxb20173806.0697

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White Long Persistent Phenomenon from Sr₃Al₂O₅Cl₂:Eu²⁺, Tm³⁺ Nano-fiber

更新时间：2020-08-12

- White Long Persistent Phenomenon from Sr₃Al₂O₅Cl₂:Eu²⁺, Tm³⁺ Nano-fiber
- Chinese Journal of Luminescence Vol. 38, Issue 6, Pages: 697-701(2017)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation of China (21261027)
- DOI：10.3788/fgxb20173806.0697
  CLC： O482.31
- Received：28 November 2016，
  
  Revised：06 February 2017，
  
  Published：05 June 2017
- 稿件说明：
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张秋函, 谭慧英, 刘永冲等. 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

ZHANG Qiu-han, TAN Hui-ying, LIU Yong-chong etc. White Long Persistent Phenomenon from Sr3Al2O5Cl2:Eu2+, Tm3+ Nano-fiber[J]. Chinese Journal of Luminescence, 2017,38(6): 697-701
张秋函, 谭慧英, 刘永冲等. 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 DOI： 10.3788/fgxb20173806.0697.

ZHANG Qiu-han, TAN Hui-ying, LIU Yong-chong etc. White Long Persistent Phenomenon from Sr3Al2O5Cl2:Eu2+, Tm3+ Nano-fiber[J]. Chinese Journal of Luminescence, 2017,38(6): 697-701 DOI： 10.3788/fgxb20173806.0697.

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Sr

：Eu

，Tm

，并研究了它们的结构、形貌及发光性能。样品Sr

2.91

：0.04Eu

，0.05 Tm

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。

Abstract

White long persistent phosphors

∶Eu

have been successfully prepared by the solid state reaction at 800 ℃. The as-prepared sample Sr

2.91

∶0.04Eu

0.05 Tm

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/m

). At last

intense white light can be found from the white light-emitting diode with Sr

2.91

∶0.04Eu

0.05 Tm

关键词

Keywords

references

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Related Institution

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State Key Laboratory of Luminescence and Applications， Changchun Institute of Optics， Fine Mechanics and Physics， Chinese Academy of Sciences

Department of Physics， Changchun Normal University

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