Eu³⁺ luminescence from different sites in a scheelite-type cadmium molybdate red phosphor with vacancies

Abstract

Spectroscopy of Eu³⁺ ions in Cd_1−3xEu_2x□_xMoO₄, points out the three main non-equivalent symmetry sites very close to each other, due to the subtle differences in emission. Eu³⁺ ions in this almost ideal red light phosphor possess S₄ point symmetry.