Preparation and Luminescent Properties of Rb2SiF6∶Mn4+ Single Crystal for Laser Lighting

Ya-yun ZHOU; Hong MING; Yi-fei ZHAO; Yuan-jing WANG; En-hai SONG; Zhi-guo XIA; Qin-yuan ZHANG

doi:10.37188/CJL.20210151

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Preparation and Luminescent Properties of Rb₂SiF₆∶Mn⁴⁺ Single Crystal for Laser Lighting

Invited Paper | 更新时间：2021-10-17

- Preparation and Luminescent Properties of Rb₂SiF₆∶Mn⁴⁺ Single Crystal for Laser Lighting
  增强出版
- Chinese Journal of Luminescence Vol. 42, Issue 10, Pages: 1559-1568(2021)
- 作者机构：
  
  华南理工大学　发光材料与器件国家重点实验室，广东省光纤激光材料与应用技术重点实验室，光通信材料研究所，广东　广州　 510640
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(51972117;U1830203);Guangdong Basic and Applied Basic Research Foundation(2021A1515012415);Guangzhou Science and Technology Planning Project(202002030098;202102020125);Fundamental Research Funds for the Central Universities(2020ZYGXZR050)
- DOI：10.37188/CJL.20210151
  CLC： O482.31
- Received：26 April 2021，
  
  Revised：10 May 2021，
  
  Published：01 October 2021
- 稿件说明：
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Ya-yun ZHOU, Hong MING, Yi-fei ZHAO, et al. Preparation and Luminescent Properties of Rb₂SiF₆∶Mn⁴⁺ Single Crystal for Laser Lighting[J]. Chinese journal of luminescence, 2021, 42(10): 1559-1568.
DOI：

Ya-yun ZHOU, Hong MING, Yi-fei ZHAO, et al. Preparation and Luminescent Properties of Rb₂SiF₆∶Mn⁴⁺ Single Crystal for Laser Lighting[J]. Chinese journal of luminescence, 2021, 42(10): 1559-1568. DOI： 10.37188/CJL.20210151.

摘要

激光照明是下一代大功率固体照明重要的发展方向之一。目前，主流白光激光器件所采用的黄光/绿光陶瓷或晶体的发射光谱中红光组分不足，使得采用这类单一材料的激光照明器件色温偏高、显色指数较低。本文报道了液相法制备的高效率高稳定的Rb

SiF

∶Mn

(RSFM)红光单晶，该材料具有宽带蓝光吸收(~450 nm)和窄带红光发射(~630 nm)特征，外量子效率达55.8%。利用该材料组装的暖白光激光照明器件在7 W/mm

功率密度激发下，光效达104.3 lm/W、色温为2 633 K、显色指数为78.3。研究表明，高性能Mn

激活氟化物红光单晶有望促进暖白光激光照明应用。

Abstract

Laser lighting is one of the important developing directions in solid-state lighting in the future. At present

the main stream laser lighting devices are fabricated by yellow/green ceramics or crystals

which show high color temperature and low color rendering index due to the insufficient red-light component of a single material. Herein

SiF

∶Mn

(RSFM) red-emitting single crystal with high efficiency and high stability was prepared by a simple solution growth method. The RSFM single crystal shows broadband blue light absorption(~450 nm) and narrowband red emission(~630 nm). The external quantum efficiency(EQE) of RSFM crystal is up to 55.8%

showing great potential in laser lighting to improve the color quality. Under the excitation of 7 W/mm

a warm white laser diode device with high luminous efficiency of 104.3 lm/W

correlated color temperature of 2 633 K and a color rendering index of 78.3 is presented. The development of high-performance Mn

-activated fluoride single crystals is expected to provide new insights into the development of highly efficient and stable materials for advanced lighting applications.

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references

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