F enhanced luminescence performance of SrLu2O4:Ce3+ glass ceramic for superior high-power artificial horticultural LEDs

文献类型： 外文期刊

第一作者： Li, Mingcai

作者： Li, Mingcai;Zhang, Xuejie;Zhang, Haoran;Liu, Yingliang;Lei, Bingfu;Zhang, Xuejie;Zhang, Haoran;Liu, Yingliang;Lei, Bingfu;Zheng, Yinjian;Xu, Yaliang

作者机构：

关键词： Phosphor; Thermal stability; Glass ceramic; Plant growth LEDs

期刊名称：CERAMICS INTERNATIONAL （ 影响因子：4.527； 五年影响因子：4.049 ）

ISSN： 0272-8842

年卷期： 2020 年 46 卷 13 期

页码：

收录情况： SCI

摘要： The discovery of light converter excited by near-ultraviolet (UV) superior broadband blue-emitting lighting source is a main challenge in plant growth LEDs. In this study, SrLu2O4:Ce3+, Li+, F- blue phosphor has been synthesized via a solid-state reaction. Benefitting from doping of F- ions, SrLu2O4:Ce3+, Li+, F- phosphor (lambda(ex) = 405 nm, lambda(em) = 460 nm) shows a strong broadband (FWHM = 90 nm) blue-emitting with lower critical concentration of Ce3+ ions and an increasing 6.9% thermal quenching performance (92.1% @ 423 K of the peak intensity at room temperature). Moreover, a blue light converter composed of SrLu2O4:Ce3+, Li+, F- phosphor and glass matrix is obtained based on phosphor-in-glass (PiG) technology, exhibiting excellent thermal stability and outstanding moisture resistance. A red light converter with commercial red phosphor is obtained by the same method. Furthermore, by combining of two light converters with near-UV chip, a proof-of-concept plant growth high power LED is achieved and applied in indoor Italian lettuce growing in comparison with commercial plant lamps.

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