Luminescence properties of Cr<sup>3+</sup>-doped near-infrared emissive fluoroyttrates for light-emitting diodes
Song Qing, Xi Zhang, Tao Yang, Lingxiang Chu, Yayun Zhou, Jing Wan, Zhengliang Wang, Huaijun Tang, Qiang Zhou
Abstract
activators undergo a decreasing crystal field in ANYF in the direction from K to Cs, yielding a red shift of the emission peak position from 758 to 786 nm, whilst the full-width-at-half-maximum (FWHM) expands from 98 to 104 nm. By virtue of the broadband NIR emission, clear structural images of the tangerine section, mini LED flashlight and circuit board were obtained by merging the optimal RNYF:Cr phosphor on a blue InGaN chip, implying its potential use in light-emitting diodes for non-destructive testing.
Topics & Concepts
Full width at half maximumLuminescencePhosphorMaterials scienceDopingLight-emitting diodeInfraredOptoelectronicsDiodeCrystal (programming language)Analytical Chemistry (journal)OpticsChemistryPhysicsProgramming languageChromatographyComputer scienceLuminescence Properties of Advanced MaterialsInorganic Fluorides and Related CompoundsPerovskite Materials and Applications