Influence of Silver Nanoparticles and 2-methylimidazolium Chloride on Conductivity of Poly (3,4-Ethylenedioxoy Thiophene): Poly(Styrene Sulfonic Acid) (PEDOT:PSS)

Document Type : Research Article


1 Department of Applied Chemistry, College of Sciences, Malek-Ashtar University of Technology, Isfahan, I.R. IRAN

2 Department of Nano-Physics, College of Sciences, Malek-Ashtar University of Technology, Isfahan, I.R. IRAN


In this research, we report the significant conductivity enhancement of the PEDOT:PSS through adding different amounts of various nanoparticle into PEDOT:PSS aqueous solutions was synthesized in laboratory research. The synthesized PEDOT:PSS in laboratory scale demonstrated good conductivity and transparency of the surface. To evaluate the conductivity was studied silver nanoparticles as doping and these nanoparticles were used in conductivity final tests. Also, ionic liquid was used for study the polymer conductivity, 2-methylimidazolium chloride. The mechanism for this conductivity enhancement of optical and electrical was studied through various chemical and physical characterizations. The minimum of resistance (488 Ω) and maximum of conductivity was reached at about 5wt.% of 2-methylimidazolium chloride into the solution was synthesized in laboratory research. Appears to conductivity enhancement observed in this study is mainly due to the effect of nanoparticles and ionic liquids on the electrical and optical properties and conformational change of PEDOT chains, and hence weaken the electrostatic interactions between PEDOT cationic chains and PSS anionic chains. These resulted in the creation of a better conduction pathway among PEDOT:PSS particles, attributed to the improvement of conductivity. The electrical changes may be made to consider of polymers in applications such as organic light-emitting diodes and solar cells.


Main Subjects

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