Boosting Applications with High-Performance Near-Infrared Phosphor-Converted Light-Emitting Diodes
文献类型：期刊论文
| 作者 | R. Li; Y. Liu; C. Jin; L. Zhang; J. Zhang; X.-J. Wang; G. Chen and J. Jiang |
| 出版日期 | 2023 |
| ISSN号 | 18638880 |
| DOI | 10.1002/lpor.202300608 |
| 英文摘要 | 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. |
| URL标识 | 查看原文 |
| 源URL | [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). |
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