Solution casting of transparent and conductive carbon nanotubes/poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) films under a magnetic field

Transparent and conductive composite films of carboxyl functionalized single-walled carbon nanotubes and poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) were deposited on various substrates under the influence of a magnetic field. It was demonstrated that the sample dewetting under the magnetic field enhances the conductivity of the dried films. Highly transparent films (∼88%) were obtained with a low sheet resistivity of ∼90 Ω/sq. The magnetic field assisted deposition method proposed here suggests scalable production of flexible and cost-effective transparent electronics.