Solid state synthesis and tunable luminescence of LaNbTiO6:Eu3

LaNbTiO 6 and LaNbTiO 6 :Eu 3+ samples were synthesized by solid state reaction. The XRD patterns suggested that the doping Eu 3+ ion will not change the structure of LaNbTiO 6 host. Under the 273 nm UV excitation, LaNbTiO 6 samples showed a single emission band peaking at about 483 nm, and LaNbTiO 6 :Eu 3+ samples showed emission bands originating from the host and characteristic emission bands of Eu 3+ . Tunable luminescence color from blue through yellow to red can be obtained by changing Eu 3+ concentration in LaNbTiO 6 :Eu 3+ system. The tunable luminescence is induced by the energy transfer from the Ti(Nb)O 6 groups of host to Eu 3+ ions.