Photostimulated luminescence from CaS:Eu,Sm clusters embedded in organic dye

Photostimulated luminescence excited by infrared LEDs in CaS:Eu2+ red afterglow phosphors

“…Efficient PSL phosphors have various possible applications, such as radiation dosimeters, optical storage, IR sensors and bioimaging. Examples of PSL phosphors are CaS:Eu 2+ , Sm 3+ [23][24][25], CaS:Yb 2+ [26,27], Cr 3+ or Mn 2+ doped LiGa 5 O 8 [28,29] and Bi 3+ doped LiScGeO 4 [30]. In these reports, PSL was studied by using an IR laser.…”

Preparation of Bitter Melon-like Ordered Porous Fluorinated Eu3+–Phenanthroline/ZnO Composite with Yellow Light Emission

“…As an organic ligand, 1,10-phen could absorb energy and transfer to the excited state and received the energy transmitted from ZnO at the same time. Eu 3+ received the energy, and the 4f electrons would be transitioned from the ground state to the excited state . The electronics on the Eu 3+ lowest excited state reverted to the ground state to produce strong fluorescence emission.…”

“…Eu 3+ received the energy, and the 4f electrons would be transitioned from the ground state to the excited state. 47 The electronics on the Eu 3+ lowest excited state reverted to the ground state to produce strong fluorescence emission. The fluoride had a low refractive index which often was used as a light amplifying material to match the matrix, and it could avoid or reduce light scattering which would reduce light transmission loss.…”

Nanoscale cube-on-cube growth and characterization of SrS:Eu, Sm optical memory material

“…SrS and CaS codoped with Eu and Sm (abbreviated as SrS:Eu,Sm and CaS:Eu,Sm) have been considered to be good candidates for electron trapping optical memory materials, which exhibit ISL by optical stimulation with infrared light after visible or UVlight irradiation at RT [11][12][13]. We demonstrated the deposition of SrS:Eu,Sm on MgO substrate by MBE technique that exhibits ISL emission at RT.…”