What question did this study set out to answer?

To develop and evaluate high-performance SWIR-emitting materials based on chromium doped rare earth sulfides for photonic applications.

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May 8, 2026

Next‐Generation Short‐Wave Infrared LED Phosphors Based on Chromium Doped Rare Earth Sulfides

Key Points

To develop and evaluate high-performance SWIR-emitting materials based on chromium doped rare earth sulfides for photonic applications.
Characterization of quantum efficiency and output power of SWIR pc-LED.
Demonstration of palm vein recognition and non-destructive detection capabilities.
The SWIR pc-LED achieves an output power of 169.2 mW@350 mA, exceeding that of commercial devices.
Successful implementation of palm vein recognition technologies using the developed materials.

Abstract

. The corresponding SWIR pc-LED delivers a high SWIR output power of 169.2 mW@350 mA, significantly outperforming the commercial devices. Finally, advanced palm vein recognition and portable non-destructive detection are successfully demonstrated. This study provides new insights and an effective materials platform for developing high-performance SWIR-emitting materials toward advanced photonic applications.

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Next‐Generation Short‐Wave Infrared LED Phosphors Based on Chromium Doped Rare Earth Sulfides

Key Points

Abstract

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