Luminescence properties of a Tb3+ activated long-afterglow phosphor

Investigation on the enhancement and the suppression of persistent luminescence of Re3+ doped Sr2EuMgSi2O7 (Re=Dy, Yb)

“…These materials are drawing more attention and the persistent luminescence has been achieved in many new kinds of materials, i.e. Tb 3+ doped CaZnGe 2 O 6 [3], Eu 2+ and Re (Re: Rare earth) codoped Ba 2 ZnSi 2 O 7 [4], zinc-boron-germanosilicate glass-ceramics [5]. All these reveal the considerable potential applications of persistent luminescence materials.…”

White-blue long persistent luminescence in Ca2Ge7O16:Tb3+ via persistent energy transfer

“…No impurity is detected, which indicates that the obtained samples are well crystallized and the incorporation of Tb 3+ almost has no influence on the host lattice. Considering the radii and valence state between Tb 3+ (0.092 nm) and Ca 2+ (0.099 nm) is closer than that of Ge 4+ (0.053 nm), [9] Tb 3+ are expected to occupy the Ca 2+ sites. Besides, the introduction of Tb 3+ may generate some defects that hinder the non-radiation relaxation from 5 D 3 to 5 D 4 .…”

Sol–gel synthesis and luminescence properties of CdSiO3: Mn2+, Eu3+ phosphor

“…It is well known that the luminescent properties of phosphors are strongly dependent on the kind of dopant ion and the crystal structure of the host lattice [6]. If there are adequate hole and/or electron traps with suitable depth values within the host lattice, long-afterglow emission can be observed in the impurity-doped phosphors.…”