Highly efficient near-UV-excitable Ca<sub>2</sub>YHf<sub>2</sub>Al<sub>3</sub>O<sub>12</sub>:Ce<sup>3+</sup>,Tb<sup>3+</sup>green-emitting garnet phosphors with potential application in high color rendering warm-white LEDs
Shaoying Wang, Balaji Devakumar, Qi Sun, Jia Liang, Liangling Sun, Xiaoyong Huang
Abstract
Novel near-UV-excitable Ca<sub>2</sub>YHf<sub>2</sub>Al<sub>3</sub>O<sub>12</sub>:Ce<sup>3+</sup>,Tb<sup>3+</sup>green phosphors with a highest internal quantum efficiency of 86.6% and external quantum efficiency of 63.1% were reported for high-CRI warm-white LEDs.
Topics & Concepts
Quantum efficiencyPhosphorMaterials scienceLight-emitting diodeAnalytical Chemistry (journal)Atomic physicsPhysicsOptoelectronicsChemistryChromatographyLuminescence Properties of Advanced MaterialsPerovskite Materials and ApplicationsGlass properties and applications