Structure, Optical and Morphological Investigations of Nanostructures in Doped SNO2 Thin Films

Abstract

Nanostructured Tin oxide and Indium (In) doped SnO2 were prepared by low cost and easy to manufacture method, which is a spray pyrolysis technique (SPT). Film transmittance was noticed to decrease from 67% to 56% (at 800 nm) on doping. XRD patterns revealed that tin oxide and 1% or 3% In:SnO2 thin films are polycrystalline and preferred orientation is 113. AFM micrographs prove that the spherical shape grains are uniformly distributed with average grain size of about 88 nm and root-mean-square (rms) roughness was about 3.5 nm. It can be concluded that the deposited samples are good candidates for use in solar cells applications.