Compositional engineering of phase-stable and highly efficient deep-red emitting phosphor for advanced plant lighting systems

Jianwei Qiao; Dehong Li; Qiufeng Shi; Haijie Guo; Ping Huang; Lei Wang

doi:10.1038/s41377-024-01679-9

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Compositional engineering of phase-stable and highly efficient deep-red emitting phosphor for advanced plant lighting systems

Original Articles

- Compositional engineering of phase-stable and highly efficient deep-red emitting phosphor for advanced plant lighting systems
- Compositional engineering of phase-stable and highly efficient deep-red emitting phosphor for advanced plant lighting systems
- LSA 2024年13卷第12期页码：3297-3306
- Affiliations：
  
  College of Physics and Optoelectronic Engineering, Taiyuan University of Technology, Taiyuan 030024, China
- Author bio：
  
  Jianwei Qiao (qiaojianwei@tyut.edu.cn)
  Qiufeng Shi (shiqiufeng@tyut.edu.cn)
  Lei Wang (wanglei_keke@163.com)
- Funds：
- DOI：10.1038/s41377-024-01679-9
  中图分类号：
- 收稿日期：2024-07-24，
  
  修回日期：2024-10-10，
  
  录用日期：2024-10-29，
  
  网络出版日期：2024-12-11，
  
  纸质出版日期：2024-12-31
- Accepted：
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Compositional engineering of phase-stable and highly efficient deep-red emitting phosphor for advanced plant lighting systems[J]. LSA, 2024,13(12):3297-3306.

Qiao, J. W. et al. Compositional engineering of phase-stable and highly efficient deep-red emitting phosphor for advanced plant lighting systems. Light: Science & Applications, 13, 3297-3306 (2024).
Compositional engineering of phase-stable and highly efficient deep-red emitting phosphor for advanced plant lighting systems[J]. LSA, 2024,13(12):3297-3306. DOI： 10.1038/s41377-024-01679-9.

Qiao, J. W. et al. Compositional engineering of phase-stable and highly efficient deep-red emitting phosphor for advanced plant lighting systems. Light: Science & Applications, 13, 3297-3306 (2024). DOI： 10.1038/s41377-024-01679-9.

摘要

Abstract

Inorganic luminescent materials hold great promise for optoelectronic device applications

yet the limited efficiency and poor thermal stability of oxide-based deep-red emitting phosphors hinder the advancement of plant lighting technologies. Herein

a simple compositional engineering strategy is proposed to stabilize the phase

boost external quantum efficiency (EQE) and enhance thermal stability. The chemical modification of the PO

tetrahedron in NaMgPO

: Eu by incorporating SiO

lowers the formation energy

leading to the generation of pure olivine phase and increasing the EQE from 27% to 52%

setting a record for oxide deep-red phosphors. In parallel

the introduced deep defect level improves thermal stability at 150 ℃ from 62.5% to 85.4%. Besides

the excitation and emission peaks shifted to 440 nm and 675 nm

respectively

aligning precisely with the specific spectral absorption requirements of plant phytoc

hromes. Moreover

the luminescent intensity showed nearly no decay after being exposed to 80% relative humidity and 80 ℃ for 6 h

and the pc-LED utilizing Na

1.06

MgP

0.94

0.06

: Eu achieves a high output power of 780 mW at 300 mA. Our research demonstrates a facile method for optimizing the performance of inorganic luminescent materials and provides alternative solutions for low-cost plant lighting.

关键词

Keywords

references

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