Down conversion luminescence behavior of Er and Yb doped Y2O3 phosphor

We have studied downconversion luminescence behaviour of Y2O3 phosphor doped with Er 1 mol% and 1 mol% of Yb. The sample was prepared by modified solid state reaction method. Using inorganic material like (Y2O3), Flux Calcium Fluoride (CaF2) and Er2O3 as well as Yb2O3 with molar ratio 1 mol% of dopant. The prepared phosphor sample was characterized using Powder X-Ray Diffraction (PXRD), Field Emission Gun Scanning Electron Microscopy (FEGSEM), High Resolution Transmission Electron Microscopy (HRTEM), Photoluminescence (PL), Thermoluminescence (TL) and CIE techniques. The obtained sample shows an intense greenish-white emission (ranging from 350 to 600 nm, centered at 565 nm) under a wide range of UV light excitation (220–400 nm). Keywords: Downconversion, Photoluminescence, Thermoluminescence