Synthesis and Performance of La3Si6N11∶Ce3+ Phosphor-in-glass Films for Laser Lighting Applications

Min-hang HUANG; Qiang-qiang ZHU; Yao MENG; Xiang-yu HU; Hong ZHANG; Le WANG

doi:10.37188/CJL.20210076

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Synthesis and Performance of La₃Si₆N₁₁∶Ce³⁺ Phosphor-in-glass Films for Laser Lighting Applications

Invited Paper | 更新时间：2021-10-17

- Synthesis and Performance of La₃Si₆N₁₁∶Ce³⁺ Phosphor-in-glass Films for Laser Lighting Applications
  增强出版
- Chinese Journal of Luminescence Vol. 42, Issue 10, Pages: 1482-1492(2021)
- 作者机构：
  
  中国计量大学　光学与电子科技学院，浙江　杭州　 310018
- 作者简介：
- 基金信息：
  
  Preeminence Youth Science Funds of Zhejiang Province(LR19F050001);National Natural Science Foundation of China(51832005;62075203;51702339);National Key R&D Program of China(2017YFB0403100;2017YFB0403105)
- DOI：10.37188/CJL.20210076
  CLC： O482.31
- Published：01 October 2021，
  
  Received：02 March 2021，
  
  Revised：16 March 2021，
- 稿件说明：
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MIN-HANG HUANG, QIANG-QIANG ZHU, YAO MENG, et al. Synthesis and Performance of La₃Si₆N₁₁∶Ce³⁺ Phosphor-in-glass Films for Laser Lighting Applications. [J]. Chinese journal of luminescence, 2021, 42(10): 1482-1492.
DOI：

MIN-HANG HUANG, QIANG-QIANG ZHU, YAO MENG, et al. Synthesis and Performance of La₃Si₆N₁₁∶Ce³⁺ Phosphor-in-glass Films for Laser Lighting Applications. [J]. Chinese journal of luminescence, 2021, 42(10): 1482-1492. DOI： 10.37188/CJL.20210076.

摘要

高性能荧光转换材料的开发是激光照明技术发展的关键，由于荧光材料会受到高功率激光的激发，因此必须具有高导热性能及优良的高温稳定性。荧光玻璃薄膜材料由于其优异的综合性能，在激光照明显示领域表现出了良好的应用前景。传统Y

∶Ce

(YAG∶Ce

)荧光玻璃薄膜由于显色性能较差，难以满足高品质激光照明应用的需求。氮化物荧光材料La

∶Ce

由于结构的特性，表现出比YAG∶Ce

更宽的发光光谱和更好的热猝灭性能。本工作针对高显色激光照明的应用需求，在镀有光学薄膜(蓝光透过)的高导热蓝宝石基板上制备了La

∶Ce

(LSN∶Ce

)荧光玻璃薄膜，并研究了合成温度、荧光粉与玻璃粉的比例(PtG比)、薄膜厚度以及蓝光透过光学薄膜对最终样品发光性能的影响。通过工艺优化，在800 ℃条件下获得了综合性能优异的LSN∶Ce

荧光玻璃薄膜(PtG比为1∶1，厚度为50 μm)，样品可承受最大功率密度为12.73 W/mm

蓝色激光的激发，发光效率可以达到157.6 lm/W。此外，LSN∶Ce

荧光玻璃薄膜显色指数

相比YAG∶Ce

提高了9%左右，达到了74.9，在高显色、高功率激光照明领域表现出良好的应用前景。

Abstract

The development of high-performance color converters is the key to laser lighting technology. Due to the high-power excitation from the laser lighting

the color converters must have high thermal conductivity and excellent high-temperature stability. The phosphor-in-glass(PiG) film is promising for high-power laser lighting applications due to its excellent comprehensive performance. The traditional Y

∶Ce

(YAG∶Ce

) PiG film can hardly achieve high-quality white lighting due to its poor color rendering. Compared with YAG∶Ce

nitride phosphor La

∶Ce

(LSN∶Ce

) exhibits broader emission spectrum and better thermal quenching behavior. In this work

LSN∶Ce

PiG film was prepared on a blue-pass(BP) optical film coated high thermal conductivity sapphire substrate. The effects of sintering temperature

ratio of phosphor to glass powder(PtG)

film thickness

and BP optical film on the luminescence properties of final samples were studied. With the optimized synthetic process

LSN∶Ce

PiG film of excellent properties can be achieved at 800 ℃

1∶1 PtG ratio and 50 μm thickness. The sample could be excited by a blue-laser with high flux density up to 12.73 W/mm

and showed a luminous efficiency of 157.6 lm/W. Furthermore

the color rendering index of LSN∶Ce

PiG film can reach 74.9

which is 9% higher than that of YAG∶Ce

indicating great potential in high power laser lighting applications with high color rendering.

关键词

荧光玻璃薄膜激光照明蓝光透过膜蓝宝石基板

Keywords

phosphor-in-glass(PiG) filmlaser lightingblue-pass(BP) optical filmsapphire substrate

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Related Author

Min-hang HUANG

Qiang-qiang ZHU

Yao MENG

Xiang-yu HU

Hong ZHANG

Le WANG

XU Tao

ZHU Qiangqiang

Related Institution

College of Optics and Electronic Science and Technology， China Jiliang University

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School of Physics and Electronic Information, Henan Polytechnic University

State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology

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