Equivalent chemical substitution in double–double perovskite-type ALaLiTeO<sub>6</sub>:Mn<sup>4+</sup> (A = Ba<sup>2+</sup>, Sr<sup>2+</sup>, Ca<sup>2+</sup>) phosphors enabling wide range crystal field strength regulation and efficient far-red emission
Jinmei Huang, Pengfei Jiang, Zien Cheng, Jie Qin, Rihong Cong, Tao Yang
Abstract
A small A-cation in the ALaLiTeO 6 :Mn 4+ phosphors leads to a compact structure and MnO 6 -octahedron, further resulting in a redshift in luminescence spectra and a remarkable enhancement in quantum efficiency and thermal stability.
Topics & Concepts
PhosphorPhotoluminescenceQuantum efficiencyIonic radiusOctahedronCrystal structureLuminescencePerovskite (structure)CrystallographyChemistryMaterials scienceAnalytical Chemistry (journal)IonOptoelectronicsOrganic chemistryChromatographyLuminescence Properties of Advanced MaterialsPerovskite Materials and ApplicationsMicrowave Dielectric Ceramics Synthesis