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A Thermally Robust La3Si6N11:Ce-in-Glass Film for High-Brightness Blue-Laser-Driven Solid State Lighting
You, Shihai; Li, Shuxing; Zheng, Peng; Zhou, Tianliang; Wang, Le; Liu, Lihong; Horisaki, Naoto; Xu, Fangfang; Xie, Rong-Jun
2019-02-01
Source PublicationLASER & PHOTONICS REVIEWS
ISSN1863-8880
Volume13Issue:2
SubtypeArticle
AbstractColor converter is a key luminescent material in the laser-driven solid state lighting, which must bear high-density excitation and serious thermal attack from the incident laser. Here, a thermally robust yellow-emitting La3Si6N11:Ce-in-glass (LSN:Ce-PiG) film for laser lighting is reported by co-firing the LSN:Ce and glass powders on a thermally conductive sapphire substrate. No detectable interfacial reaction occurs between the LSN:Ce particle and glass matrix, enabling the film to fully inherit the original thermal robustness and high quantum efficiency. The optical performance of LSN:Ce-PiG-converted white laser light has been effectively optimized by changing the phosphor-to-glass (PtG) ratio and the film thickness. The highest light conversion efficiency is respectively achieved at PtG = 2:3 and the thickness of 70 mu m, and the saturation threshold is found to decrease with either a higher PtG ratio or a thicker film. The optimized LSN:Ce-PiG film (P2G3-50) can withstand a maximum laser power density of 12.91 W mm(-2) and produce a cool white light with a high luminous flux of 1076 lm (luminance of 773 Mcd m(-2)), a luminous efficiency of 166.05 lm W-1, a color rendering index of 70. These results make the LSN:Ce-PiG film a considerably promising color converter for laser lighting.
Keywordcolor converter La3Si6N11:Ce laser lighting and displays luminescence saturation phosphor-in-glass film
DOI10.1002/lpor.201800216
Language英语
WOS Research AreaOptics ; Physics
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27361
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
You, Shihai,Li, Shuxing,Zheng, Peng,et al. A Thermally Robust La3Si6N11:Ce-in-Glass Film for High-Brightness Blue-Laser-Driven Solid State Lighting[J]. LASER & PHOTONICS REVIEWS,2019,13(2).
APA You, Shihai.,Li, Shuxing.,Zheng, Peng.,Zhou, Tianliang.,Wang, Le.,...&Xie, Rong-Jun.(2019).A Thermally Robust La3Si6N11:Ce-in-Glass Film for High-Brightness Blue-Laser-Driven Solid State Lighting.LASER & PHOTONICS REVIEWS,13(2).
MLA You, Shihai,et al."A Thermally Robust La3Si6N11:Ce-in-Glass Film for High-Brightness Blue-Laser-Driven Solid State Lighting".LASER & PHOTONICS REVIEWS 13.2(2019).
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