An investigation of SnO2 nanofilm for solar cell application by spin coating technique

Abstract

In this paper, we aimed to prepare transparent nanofilms (SnO2) using spin coating technique used for solar cell application. It costs is very less for fabrication and by using very less quantity of raw materials. SnO2 is a transparent metal oxide that has verygood electrical, thermal conducting and optical properties. The efficiency of the solar cell nanofilm depends mainly on the thickness of nanofilm layer. The optimizing parameters such as the solute concentration, spin rate, time of the turn table, Nanofilm thickness and heat treatment techniques are to be accounted for good SnO2 production. SnO2 film is prepared from tin chloride as precursor and ethanol as the solvent. Thus nanofilm coated using spin coating techniques is subjected to various characterization techniques to study the nanofilm layer and its applications. The presence of SnO2 is identified by FTIR and the thickness of the layer is measured by Stylus Profilometer. The composition of the materials in the nanofilm are identified by XRD characterization.