Boosting Applications with High-Performance Near-Infrared Phosphor-Converted Light-Emitting Diodes

doi:10.1002/lpor.202300608

CIOMP OpenIR

	Boosting Applications with High-Performance Near-Infrared Phosphor-Converted Light-Emitting Diodes
	R. Li; Y. Liu; C. Jin; L. Zhang; J. Zhang; X.-J. Wang; G. Chen and J. Jiang
	2023
ISSN	18638880
摘要	Near-infrared (NIR) phosphor-converted (pc) light-emitting diodes (LEDs) are gaining popularity as smart NIR spectroscopy light sources. However, the low wall-plug efficiency (WPE) of NIR pc-LEDs has limited their applications due to the comprehensive properties of external quantum efficiencies (EQEs) and thermal stability for NIR phosphors. In this study, a simple strategy is presented to achieve high-performance NIR phosphors by breaking the d–d parity forbidden transitions of Cr3+ in the garnet host by introducing asymmetric vibrations via lattice distortions. The achieved EQE is as high as 44% at room temperature and maintains >98% of the initial EQE at 150 °C, demonstrating excellent thermal stability. Notably, these NIR phosphors enable unprecedented NIR pc-LEDs with a record WPE of 26% driven at 100 mA. Consequently, the application of NIR pc-LEDs is expanded to new areas such as real-time heart rate monitoring and fingerprint recognition. © 2023 Wiley-VCH GmbH.
DOI	10.1002/lpor.202300608
URL	查看原文
收录类别	sci ; ei
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67636
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	R. Li,Y. Liu,C. Jin,et al. Boosting Applications with High-Performance Near-Infrared Phosphor-Converted Light-Emitting Diodes[J],2023.
APA	R. Li.,Y. Liu.,C. Jin.,L. Zhang.,J. Zhang.,...&G. Chen and J. Jiang.(2023).Boosting Applications with High-Performance Near-Infrared Phosphor-Converted Light-Emitting Diodes..
MLA	R. Li,et al."Boosting Applications with High-Performance Near-Infrared Phosphor-Converted Light-Emitting Diodes".(2023).

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Boosting Application（2127KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载