Transparent Conducting Electrodes from Conducting Polymer Nanofibers and Their Application as Thin-Film Heaters


DÜZYER GEBİZLİ Ş. , Sinha-Ray S., Sinha-Ray S., Yarin A. L.

MACROMOLECULAR MATERIALS AND ENGINEERING, vol.302, no.10, 2017 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 302 Issue: 10
  • Publication Date: 2017
  • Doi Number: 10.1002/mame.201700188
  • Title of Journal : MACROMOLECULAR MATERIALS AND ENGINEERING
  • Keywords: conducting polymer, electrospinning, nanofiber, solution blowing, transparent heater, SILVER-NANOWIRE NETWORKS, ORGANIC POLYMERS, OXIDE, POLYANILINE, COMPOSITE, METALS

Abstract

Transparent conducting electrodes attract attention in relation to solar cells, touch panels, displays, e-readers, and transparent heaters. In many cases, rarefied metal nets with optical transmittance of approximate to 90% and with minimal sheet resistance are sought after. Here, a mesh of conducting polymer nanofibers is developed as a transparent conducting electrode. A sheet resistance of 8.4 k Omega sq(-1) with 84% optical transmittance is achieved with polyethylene oxide/poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEO/PEDOT:PSS) blended polymer nanofibers. This study also demonstrates that such nanofiber being deposited on a glass substrate can be used as a transparent film heater in relevant applications such as window heating or displays at harsh environments. Such a transparent heater is rated at 0.41 W in.(-2) for 120 V. It is also capable of heating a substrate up to approximate to 70 degrees C in 4 min at 60 V from room temperature without any degeneration of nanofiber network, rendering itself as a practically useful transparent heater. The performance of the PEO/PEDOT:PSS nanofiber-coated transparent glass heater is comparable to that of the relatively expensive indium tin oxide thin-film heaters.