Synthesis optimization and charge carrier transfer mechanism in LiLuSiO₄:Ce, Tm storage phosphor

LiLuSiO₄:Ce and LiLuSiO₄:Ce, Tm show very efficient charge carrier storage properties upon beta irradiation after samples have received treatment in vacuum. They outperform the commercial storage phosphor BaFBr(I):Eu²⁺ in many aspects. The influence of the synthesis conditions, Ce and Tm concentration,...

The Pr 3+ and Tb 3+ ground state locations in compounds obtained from thermoluminescence and intervalence charge transfer studies

The location of the lanthanide ground states with respect to the host valence band or to the vacuum level always follow characteristic zigzag patterns with the number of electrons q in the 4f orbital. The patterns that are used today evolved over the years by combining experimental data from different techniques, and they are in first...

Persistent luminescence excitation spectroscopy of BaAl₂O₄:Eu²⁺,Dy³⁺

BaAl₂O₄:Eu²⁺,Dy³⁺ is related, both by structure and luminescence, to one of the best persistent luminescent phosphors, SrAl₂O₄:Eu²⁺,Dy³⁺. At room temperature (RT), the green persistent emission of BaAl₂O₄:Eu²⁺,Dy<sup>3+<...