Achieving broadband near-infrared emission with superior anti-thermal quenching by optimizing the excited-state population of Cr<sup>3+</sup> in Gd<sub>3</sub>ScGa<sub>4</sub>O<sub>12</sub> garnet phosphors
Wangyu Liu, Lifang Yuan, Haoyi Wu, Huafeng Dong, Yahong Jin
Abstract
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.
Topics & Concepts
BroadbandPhosphorExcited stateMaterials scienceInfraredOptoelectronicsQuenching (fluorescence)ThermalPopulationTelecommunicationsOpticsFluorescenceAtomic physicsPhysicsMedicineComputer scienceEnvironmental healthMeteorologyLuminescence Properties of Advanced MaterialsPerovskite Materials and ApplicationsPhotorefractive and Nonlinear Optics