Achieving broadband near-infrared emission with superior anti-thermal quenching by optimizing the excited-state population of Cr3+ in Gd3ScGa4O12 garnet phosphors

even increases to 198% of its room-temperature intensity at 543 K. A prototype broadband NIR pc-LED is encapsulated to deliver an NIR output power of 125.20 mW@900 mA and a wall-plug efficiency (WPE) of 6.88%@30 mA, enabling night vision, noninvasive imaging, and non-destructive detection applications.