Full spectrum core–shell phosphors under ultraviolet excitation

Abstract

A YAG:Ce/MgY₄Si₃O₁₃:Ce–Y₂O₃:Eu core–shell structure was designed and accomplished via a urea homogeneous precipitation method. The as prepared phosphors can emit photons with a broad range of wavelengths from 340 nm to 700 nm under excitation light of 330 nm. The internal quantum efficiency can reach up to 68%.