Deposition of PEDOT : PSS Nanoparticles as a Conductive Microlayer Anode in OLEDs Device by Desktop Inkjet Printer

Abstract EN

A simple microfabrication technique for delivering macromolecules and patterning microelectrode arrays using desktop inkjet printer was described.

Aqueous solution of nanoparticle of poly (3,4-ethylenedioxythiophene) (PEDOT) doped with polystyrene sulfonic acid (PSS) was prepared while its particle size, the surface tension, and the viscosity of the solution were adjusted to be suitable for deposition on a flexible cellulose nanocomposite substrate via inkjet printer.

The statistical average of PEDOT: PSS particle size of 100 nm was observed.

The microthickness, surface morphology, and electrical conductivity of the printed substrate were then characterized by profilometer, atomic force microscope (AFM), and four-point probe electrical measurement, respectively.

The inkjet deposition of PEDOT: PSS was successfully carried out, whilst retained its transparency feature.

Highly smooth surface (roughness ~23–44 nm) was achieved.