Structural and electrical studies on Zn2+ doped LiCoPO4

Zinc doped LiCoPO₄ was prepared by two step solid state reaction method. XRD studies ensure the formation of phase pure LiCoPO₄ with olivine phase orthorhombic structure with p_nma phase group. 2θ value of XRD peaks of LiCoPO₄ is found to be shifted upon Zn²⁺ doping. The conductivity of pure LiCoPO₄ is noticed to be increased by one order upon doping of Zn²⁺. The scaling behavior of Z″ indicates that the ion dynamical process are temperature independent for both pure and Zn²⁺ doped LiCoPO₄. The temperature dependence of conductivity for both pure and Zn²⁺ doped sample obeys Arrhenius law of conduction.