Yttrium Aluminum Garnet Phosphor-in-glass with Improved Color-rendering for Laser Lighting

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

doi:10.37188/CJL.20210166

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Yttrium Aluminum Garnet Phosphor-in-glass with Improved Color-rendering for Laser Lighting

Invited Paper | 更新时间：2021-10-17

- Yttrium Aluminum Garnet Phosphor-in-glass with Improved Color-rendering for Laser Lighting
  增强出版
- Chinese Journal of Luminescence Vol. 42, Issue 10, Pages: 1619-1626(2021)
- 作者机构：
  
  1.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.20210166
  CLC：
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Yao MENG, Qiang-qiang ZHU, Min-hang HUANG, et al. Yttrium Aluminum Garnet Phosphor-in-glass with Improved Color-rendering for Laser Lighting. [J]. Chinese Journal of Luminescence 42(10):1619-1626(2021)
DOI：

Yao MENG, Qiang-qiang ZHU, Min-hang HUANG, et al. Yttrium Aluminum Garnet Phosphor-in-glass with Improved Color-rendering for Laser Lighting. [J]. Chinese Journal of Luminescence 42(10):1619-1626(2021) DOI： 10.37188/CJL.20210166.

摘要

Y,3,Al,5,O,12,∶Ce,3+,(YAG∶Ce,3+,)荧光玻璃由于光谱中缺少红绿光成分，难以满足高显色激光照明的应用需求。本研究工作基于钇铝石榴石结构荧光材料宽光谱、高光效及高稳定的特性，选用绿色发光Y,3,(Ga,Al),5,O,12,∶Ce,3+,(YAGG∶Ce,3+,)和橙色发光(Y,Gd),3,Al,5,O,12,∶Ce,3+,(GdYAG∶Ce,3+,)荧光材料作为荧光玻璃中的荧光组分，获得了具有较高显色性能的荧光玻璃材料。详细研究了制备温度、荧光粉和玻璃粉的比例、YAGG∶Ce,3+, 和GdYAG∶Ce,3+, 荧光粉的比例以及样品厚度对其性能的影响。通过制备工艺及材料组分的优化，YAGG∶Ce,3+,/GdYAG∶Ce,3+, 荧光玻璃样品在蓝色激光激发下的显色指数(,R,a,)可以达到79.7，相比YAG∶Ce,3+, 荧光玻璃提升了13.7%左右。具有最优,R,a,的荧光玻璃样品的发光饱和阈值为1.63 W/mm,2,，此时样品的发光效率可以达到163.14 lm/W，可应用于激光照明领域实现白光照明品质的提升。

Abstract

Due to the spectrum defect of the red and green light component, the Y,3,Al,5,O,12,∶Ce,3+,(YAG∶Ce,3+,) phosphor-in-glass(PiG) cannot be applied in high-quality laser lighting. Based on the yttrium aluminum garnet luminescent material with wide spectrum, high luminous efficiency and high stability, the green-emitting Y,3,(Ga,Al),5,O,12,∶Ce,3+,(YAGG∶Ce,3+,) and orange-emitting (Y,Gd),3,Al,5,O,12,∶Ce,3+, (GdYAG∶Ce,3+,) phosphors were used as raw materials to fabricate PiG, and the PiG sample with improved color-rendering was achieved. The effects of fabrication temperature, phosphor-to-glass ratio, YAGG∶Ce,3+,/GdYAG∶Ce,3+, ratio, and the thickness on properties of PiG samples were studied in detail. By optimizing synthetic conditions and PiG components, the color rendering index (,R,a,) of achieved PiG can reach 79.7, showing 13.7% improvement compared with that of YAG∶Ce,3+, PiG. The luminescence saturation threshold of PiG sample with optimal ,R,a, is 1.63 W/mm,2, and the luminous efficacy can reach 163.14 lm/W, suggesting a promising application in laser lighting for achieving better lighting effects.

关键词

激光照明钇铝石榴石荧光玻璃高显色

Keywords

laser lightingyttrium aluminum garnetphosphor-in-glasshigh color-rendering

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