Limitations to the use of Pr3+ as a sensitizer in luminescent Gd3+ compounds

Abstract

Transfer phenomena which influence the energy transfer processes in Pr3+-sensitized Gd3+ compounds are discussed. Concentration quenching of the Pr3+ 4f5d emission at relatively low Pr3+ concentrations, and energy transfer from activator ions to Pr3+ limits strongly the use of Pr3+ as a sensitizer in the host lattice GdBO3.