TiO2/ZnO columnar heterostructures

Abstract

In this work we synthesized TiO2/ZnO columnar films and studied their characteristics, including the sensor structures based on zinc oxide doped with different impurities. The effects of nano-heterogeneous formation of non-planar junctions of titania (TiO2) and zinc oxides on sensory selectivity are also investigated. The properties of these materials were measured using XRD, XPS, EDX, SEM and electrical techniques.