Preparation and Laser-driven Lighting Application of High-CRI White Light PiG Film

Rui YUAN; Fan GUO; Hui-hui LI; Jia TONG; Qian-li LI; Jing-tai ZHAO; Zhi-jun ZHANG

doi:10.37188/CJL.20210138

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Preparation and Laser-driven Lighting Application of High-CRI White Light PiG Film

Invited Paper | 更新时间：2021-10-17

- Preparation and Laser-driven Lighting Application of High-CRI White Light PiG Film
  增强出版
- Chinese Journal of Luminescence Vol. 42, Issue 10, Pages: 1627-1636(2021)
- 作者机构：
  
  1.上海大学　材料科学与工程学院，上海　 200444
  2.桂林电子科技大学　材料科学与工程学院，广西　桂林　 541004
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(51772185;U1832159;11905122);the China Postdoctoral Science Foundation(2019M651469;2020T130399)
- DOI：10.37188/CJL.20210138
  CLC：
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Rui YUAN, Fan GUO, Hui-hui LI, et al. Preparation and Laser-driven Lighting Application of High-CRI White Light PiG Film. [J]. Chinese Journal of Luminescence 42(10):1627-1636(2021)
DOI：

Rui YUAN, Fan GUO, Hui-hui LI, et al. Preparation and Laser-driven Lighting Application of High-CRI White Light PiG Film. [J]. Chinese Journal of Luminescence 42(10):1627-1636(2021) DOI： 10.37188/CJL.20210138.

摘要

通过将玻璃粉体与发射波长为535~550 nm的黄绿色和660 nm的红色荧光粉混合制备出浆料，采用丝网印刷方法将其印刷在高热导蓝宝石片上，在较低烧结温度下成功制备出具有高显指白光的PiG荧光薄膜(Phosphors in glass flim,PiGF)，并系统地研究了玻璃/荧光粉比例及荧光粉配比对PiGF在色温(CCT)、显色指数(CRI)、发光效率(LE)等方面的影响规律。在12.5 W电功率的蓝光激光(455 nm)激发下，当荧光粉/玻璃质量比例为1∶4、535 nm/660 nm荧光粉质量比为9∶1时，可产生色温为5 500 K、显色指数达92的高显指白光PiGF。该结果表明PiGF在高显指、白光激光照明领域具有极大的应用价值。

Abstract

In this paper, by the way of mixing glass powder with yellow-green(535-550 nm) and red(660 nm)-emitting phosphors, and then coated on a sapphire wafer by screen-printing, the PiG film(Phosphors in glass flim, PiGF) with white light and high CRI is successfully prepared at a lower sintering temperature. The effects of different ratios of glass/phosphor and G/R phosphors(535 nm/660 nm) on PiGF's CCT, CRI, luminous efficiency(LE),etc,. are systematically studied. The results show that the prepared PiGF can generate white light with a CCT of 5 500 K and a high CRI of 92, when the mass ratios of phosphor /glass powder and G /R phosphor are fixed at 1∶4 and 9∶1, respectively, under the excitation of blue laser diodes(LD, 455 nm) with an electric power of about 12.5 W. The results show that PiGF has great practical application in high CRI and white light laser-driven lighting.

关键词

荧光薄膜激光照明高显色指数PiG荧光薄膜

Keywords

fluorescent filmlaser-driven lightinghigh CRIphosphors in glass flim(PiGF)

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