Electrodeposition of Sn, Se, SnSe and the material properties of SnSe rlms

Abstract

A detailed account of the electrochemistry involved in the deposition of Sn, Se and SnSe rlms is presented. The redox reactions and the polarization curves of Sn and Se were studied to rx the pH and potential values V (NHE) to get uniform deposition. Films were cathodically deposited at 558C. XRD studies show an orthorhombic structure. Films showed an indirect band-gap of 1.05 eV. Surface morphological studies were carried out using SEM, and the stoichiometry was estimated from XPS analysis. Effect of annealing in air at 2008C has been reported