Hole Detrapping-Type Persistent Phosphors of RE₂O₂S (RE = La, Gd, Y, Lu) Doped with Eu³⁺-Pr³⁺ and Eu³⁺-Tb³⁺

RE₂O₂S:Eu³⁺-Ln³⁺ (RE = La, Gd, Y, Lu; Ln = Pr, Tb) samples were prepared by a solid-state reaction method to develop new red persistent phosphors and to demonstrate the hole detrapping mechanism. All Eu³⁺-singly doped RE₂O₂S show very weak thermoluminescence (TL)...

Vacuum referred binding energy of 3d transition metal ions for persistent and photostimulated luminescence phosphors of cerium-doped garnets

The Y₃Al_5−xGa_xO₁₂(YAGG):Ce³⁺-Cr³⁺ persistent phosphor is one of the materials in which Cr³⁺ ions act as electron traps. The possibility of electron traps by other transition metal ions (TM³⁺, TM = Sc, Ti, V, Cr, Fe) was investigated and those electron trap...