Enhancing and tuning broadband near-infrared (NIR) photoluminescence properties in Cr<sup>3+</sup>-doped Ca<sub>2</sub>YHf<sub>2</sub>Al<sub>3</sub>O<sub>12</sub> garnet phosphors <i>via</i> Ce<sup>3+</sup>/Yb<sup>3+</sup>-codoping for LED applications
Qianqian Zhang, Guogang Li, Peipei Dang, Dongjie� Liu, Dayu Huang, Hongzhou Lian, Jun Lin
Abstract
NIR emission from 650 nm to 1100 nm in a novel Ca<sub>2</sub>YHf<sub>2</sub>Al<sub>3</sub>O<sub>12</sub>:Cr<sup>3+</sup>,Yb<sup>3+</sup> garnet phosphor with good thermal stability and high internal quantum efficiency is designed for NIR pc-LEDs.
Topics & Concepts
PhotoluminescenceMaterials sciencePhosphorDopingAnalytical Chemistry (journal)Thermal stabilityQuantum efficiencyInfraredLuminescenceOptoelectronicsOpticsPhysicsChemistryQuantum mechanicsChromatographyLuminescence Properties of Advanced MaterialsGlass properties and applicationsLuminescence and Fluorescent Materials