Structural and photoluminescence properties of YVO4: Re3+ (Re = Sm, Dy, Er and Eu) phosphors

Regulating luminescence thermal quenching based on the synergistic effect of energy transfer and energy gap modulation

“…YVPO:Bi 3+ ,Eu 3+ shows a wide excitation band, with two excitation peaks at 250 nm and 310 nm, which are attributed to the (Eu-O) charge transfer band of the activator Eu 3+ to the ligand O 2− and the (V-O) charge transfer band of the coordination cation V 5+ to ligand O 2− , respectively. 30,31 The smaller excitation peak after 350 nm comes from the electronic transition from the ground state 7 F 0 of Eu 3+ to the excited state 5 D x . The PLE spectra of YVPO:Bi 3+ ,Eu 3+ at different monitoring wavelengths show the same peak shape, which indicates that there is only one luminescence center of Eu 3+ in the crystal; the excitation intensity changes obviously and the excitation peak monitored at λ em = 621 nm shows the maximum intensity.…”

Vacuum-assisted colossal enhancement of up-conversion luminescence of lanthanide-doped nanoparticles upon NIR laser irradiation – a new strategy for phosphor development

“…5), confirming that all materials have the same structure of the tetragonal phase of YVO 4 . [46][47][48][49][50]…”