Single-phase White Light-emitting Phosphor Cs2Li3Sr2B3(PO4)6∶Dy3+ with Excellent Thermal Stability

Yi-hang WANG; Xue-zhu LIAN; Hua-wei XU; Xiao-jiao KANG; Wei LYU

doi:10.37188/CJL.20220033

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Single-phase White Light-emitting Phosphor Cs₂Li₃Sr₂B₃(PO₄)₆∶Dy³⁺ with Excellent Thermal Stability

Synthesis and Properties of Materials | 更新时间：2022-05-23

- Single-phase White Light-emitting Phosphor Cs₂Li₃Sr₂B₃(PO₄)₆∶Dy³⁺ with Excellent Thermal Stability
  增强出版
- Chinese Journal of Luminescence Vol. 43, Issue 5, Pages: 676-683(2022)
- 作者机构：
  
  1.东莞理工学院　电子工程与智能化学院，广东　东莞　523808
  2.工业和信息化部电子第五研究所，广东　广州　510006
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(51772287);Science and Technology Project of Guangzhou(202103020003)
- DOI：10.37188/CJL.20220033
  CLC： O482.31
- Published：2022-05，
  
  Received：24 January 2022，
  
  Revised：08 February 2022，
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Yi-hang WANG, Xue-zhu LIAN, Hua-wei XU, et al. Single-phase White Light-emitting Phosphor Cs₂Li₃Sr₂B₃(PO₄)₆∶Dy³⁺ with Excellent Thermal Stability. [J]. Chinese Journal of Luminescence 43(5):676-683(2022)
DOI：

Yi-hang WANG, Xue-zhu LIAN, Hua-wei XU, et al. Single-phase White Light-emitting Phosphor Cs₂Li₃Sr₂B₃(PO₄)₆∶Dy³⁺ with Excellent Thermal Stability. [J]. Chinese Journal of Luminescence 43(5):676-683(2022) DOI： 10.37188/CJL.20220033.

摘要

通过高温固相法合成了一系列单基质白光荧光材料Cs

（PO

）

∶Dy

，并对其结构特性、浓度猝灭机理、发光特性、温度特性、荧光寿命进行了测试与讨论。研究结果表明，该样品的发射峰主要位于490 nm和577 nm，且能在近紫外光/紫外光激发下产生单一白光。对比发现该样品在Dy

掺杂浓度为7% 时荧光强度最强，且通过计算得出该样品的浓度猝灭机理是由于偶极-偶极相互作用。热稳定性分析结果表明该样品的热稳定性优异，在150 ℃下的荧光强度可达初始室温强度的97%。因此，Cs

（PO

）

∶Dy

是一种热稳定性优异的潜在的单一基质发白光材料。

Abstract

In this paper

a series of single-phase white light-emitting Cs

(PO

)

∶Dy

phosphor were synthesized by high-temperature solid-phase method. Their structure characteristics

photoluminescence excitation and emission spectra

lifetime and temperature-dependent emission spectra have been discussed. The results show that the emission peaks of the sample are mainly located at 490 nm and 577 nm

and can produce uniform white light under the excitation of near-ultraviolet light/ultraviolet light. The concentration quenching mechanism has been investigated and demonstrated to be a dipole-dipole interaction. The thermal stability based on the temperature-dependent PL spectra of Cs

(PO

)

∶Dy

demonstrated that this phosphor showed superior thermal behavior. Cs

(PO

)

∶Dy

is a potential single white light-emitting material with excellent thermal stability.

关键词

单基质Dy3+LED荧光粉

Keywords

single-phaseDy3+white light-emittingphosphor

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