Glass crystallization making red phosphor for high-power warm white lighting

Tao Hu; Lixin Ning; Yan Gao; Jianwei Qiao; Enhai Song; Zitao Chen; Yayun Zhou; Jing Wang; Maxim S. Molokeev; Xiaoxing Ke; Zhiguo Xia; Qinyuan Zhang

doi:10.1038/s41377-021-00498-6

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Glass crystallization making red phosphor for high-power warm white lighting

Articles

- Glass crystallization making red phosphor for high-power warm white lighting
- Light: Science & Applications Vol. 10, Issue 4, Pages: 570-581(2021)
- Affiliations：
  
  1.School of Physics and Optoelectronics, State Key Laboratory of Luminescent Materials and Devices and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou, Guangdong, China
  2.Anhui Key Laboratory of Optoelectric Materials Science and Technology, Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Normal University, Wuhu, Anhui, China
  3.School of Applied Physic and Materials, Wuyi University, Jiangmen, Guangdong, China
  4.Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, Guangdong, China
  5.Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
  6.Siberian Federal University, Krasnoyarsk, Russia
  7.Research and Development Department, Kemerovo State University, Kemerovo, Russia
  8.Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology Beijing, Beijing, China
- Author bio：
  
  Lixin Ning (ninglx@mail.ahnu.edu.cn)
  Zhiguo Xia (xiazg@scut.edu.cn)
  Qinyuan Zhang (qyzhang@scut.edu.cn)
- Funds：
- DOI：10.1038/s41377-021-00498-6
  CLC：
- Published：30 April 2021，
  
  Published Online：12 March 2021，
  
  Received：17 January 2021，
  
  Revised：09 February 2021，
  
  Accepted：24 February 2021
- Accepted：
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Hu, T. et al. Glass crystallization making red phosphor for high-power warm white lighting. Light: Science & Applications, 10, 570-581 (2021).
DOI：

Hu, T. et al. Glass crystallization making red phosphor for high-power warm white lighting. Light: Science & Applications, 10, 570-581 (2021). DOI： 10.1038/s41377-021-00498-6.

摘要

Abstract

Rapid development of solid-state lighting technology requires new materials with highly efficient and stable luminescence

and especially relies on blue light pumped red phosphors for improved light quality. Herein

we discovered an unprecedented red-emitting Mg

: Eu

composite phosphor (

= 450 nm

= 620 nm) via the crystallization of MgO-Al

-SiO

aluminosilicate glass. Combined experimental measurement and first-principles calculations verify that Eu

dopants insert at the vacant channel of Mg

crystal with six-fold coordination responsible for the peculiar red emission. Importantly

the resulting phosphor exhibits high internal/external quantum efficiency of 94.5/70.6%

and stable emission against thermal quenching

which reaches industry production. The maximum luminous flux and luminous efficiency of the constructed laser driven red emitting device reaches as high as 274 lm and 54 lm W

-1

respectively. The combinations of extraordinary optical properties coupled with economically favorable and innovative preparation method indicate

that the Mg

: Eu

composite phosphor will provide a significant step towards the development of high-power solid-state lighting.

关键词

Keywords

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