Synthesis, characterization, luminescence and electrical conductivity of the metal ions (M) doped KAl0.33W1.67O6.

Metal ions (M) (M=Ag + , Cu 2+ , Sm 3+ and Eu 3+ ) doped KAl 0.33 W 1.67 O 6 are obtained at room temperature by ion exchange method. These materials are characterized by powder X-Ray diffraction (XRD), and UV–visible DRS. All these materials are crystallized in a cubic lattice with F d 3 ¯ m space group. The dependence of photoluminescence properties of Sm 3+ and Eu 3+ in KAl 0.33 W 1.67 O 6 lattice is examined with reference to rare earth ion concentration. The AC conductivity measurements of Ag + and Cu 2+ doped KAl 0.33 W 1.67 O 6 are carried out in the temperature range 30–450 °C. The variation of conductivity with frequency and temperature is explained. [ABSTRACT FROM AUTHOR]