Biao Zheng

Dec 4, 2024 | onlinelibrary.wiley.com | Xiaochen Fang |Zhuo Chen |Biao Zheng |Liwei Wang

1 Introduction Near-infrared (NIR) light emitting diode (LED) devices are increasingly recognized for their broad applications, including night-time navigation, secure optical communication systems, advanced medical imaging, non-invasive diagnostics, and the assessment of food safety and quality.[1-4] The development of phosphor-converted (pc) NIR LED device typically involves a NIR emitting phosphors and a standard 365 nm commercial UV LED chip.