Transparent Flexible Electronics Based on Ionic Electroactive Polymer through Ionic Disruption
Naguib Hani E (1)*, Jo Andrew (2)
(1) Department of Mechanical and Industrial Engineering, University of Toronto - Ontario - Canada, (2) Department of Chemical and Materials Engineering, University of Toronto - Ontario - Canada
Typically, ionic electroactive polymer actuators use metal or conductive polymers as electrodes and so are opaque when actuated under an electrical stimulus. By modifying the electrodes to become optical transparent, we could further enhance the functionality of smartphones and open up applications for use as optical lenses. We have found that isopropyl alcohol (IPA) can aid in allowing positive conductive polymer molecules to bind to the surface of a negatively charged Nafion membrane. This can be achieved by treating Nafion membranes submerged in 3,4-polyethylenedioxythiophene:polystyrenesulfonate (PEDOT:PSS) solution with IPA to temporarily disrupt the ionic interactions between PEDOT:PSS and which will allow the PEDOT molecules to ionically interact with the membrane’s surface for an optically transparent electroactive polymer.