Study of ZnO-SnO_2 nanocomposites: Structural, topological and electrochemical properties

摘要

In the present study we have synthesized nanocomposites of ZnO and SnO_2 by the sol gel synthesis method and investigated their structural, morphological and electro-chemical properties. Particle size and strain corresponding to the variation in the composition of the composite has been determined using X-ray. AFM investigations reveal a partial homogeneous and granular surface morphology with increase in RMS value for increasing content of SnO_2. From the Mott Schottky analysis establishes the n- type semiconducting behavior with high donor density for these materials. Cyclic Voltammetry study gives oxidation and reduction potentials and describes the electrochemical behavior of these materials.