Luminescence quenching in Er-doped BaTiO3 thin films

Abstract

Luminescence quenching in Er-doped epitaxial BaTiO3 thin films was investigated. From transient photoluminescence, nonradiative decay processes were measured, and a nonradiative resonant energy transfer model was developed. The nonradiative transition rate is linearly proportional to the OH impurity concentration in the films, indicating it is responsible for the observed quenching behavior.