The broadband emission of Cr<sup>3+</sup>-doped CaY<sub>2</sub>Mg<sub>2</sub>Ge<sub>3</sub>O<sub>12</sub> and its applications for NIR detectors
Yuyan Li, Ye Jin, Fei Fang, Huayan Lin, Hongtao Chen, Yanbin Xiong, Yongfu Liu, Li Ma, Xiaojun Wang
Abstract
CaY 2 Mg 2 Ge 3 O 12 :Cr 3+ exhibits broadband NIR emission with thermal stability (92%@100 °C) and 81.1% internal quantum efficiency. The NIR pc-LED performs an NIR output power of 49.65 mW@400 mA and a photoelectric conversion efficiency of 10.52% at 20 mA.
Topics & Concepts
PhosphorLuminescenceMaterials scienceFull width at half maximumLight-emitting diodeOptoelectronicsQuantum efficiencyNear-infrared spectroscopyEmission intensityOpticsPhysicsLuminescence Properties of Advanced MaterialsPerovskite Materials and ApplicationsLuminescence and Fluorescent Materials