Evaluation of the Addition of O-Toluidine and Nano-Ag on The Optical and Electrical Properties of PEDOT-PSS Polymer Nadhim A. Abdullah, Abdullah A. Hussein*, Ghufran M. Shabeeb, and Haider Abdulelah Abstract In this work, we investigate the optical and electrical properties of PEDOT-PSS:PVA:POT and PEDOT-PSS:PVA:POT:AgNPs thin films, by adding different concentrations