Influence of the Physical Properties on the Antibacterial and Photocatalytic Behavior of Ag-Doped Indium Sulfide Film Deposited by Spray Pyrolysis

Spray pyrolysis was used to deposit indium sulfide (In2S3) films, with or without silver doping. The films are polycrystalline, and the inclusion of Ag in In2S3 structure leads formation a solid solution, crystallite size order tens nanometers. exhibit semiconductive behavior, incorporation an increase charge carrier concentration, enhancing electrical conductivity films. small polaron hopping mechanism, deduced by fittings according double Jonscher variation, explains evolution direct current (dc) at high temperature Ag-doped sulfide. From impedance spectroscopy, it found that doped film presents dielectric relaxation, Nyquist diagrams indicate importance grain boundaries’ contributions transport phenomena. physical characteristics have influence on photocatalytic performance, achieving photodegradation efficiency above 80% (85.5% case doping), antibacterial activity. obtained results good candidates for environmental biological applications, confirming multifunctional nature.