For Ag NW networks to be used in light emitting diodes (OLEDs), market demands for transparent conductors must be met for all aspects including surface roughness. In this work, the high roughness value associated with as-deposited Ag NW networks was minimized through the infiltration of a conducting polymer, PEDOT:PSS, which is readily used for the hole injection layer in OLEDs.

OLEDs were then fabricated using this composite layer, formed with Ag NW networks and PEDOT:PSS, as anodes. The emissive layer of the OLEDs comprised MEH-PPV. In testing, it was revealed that electrical and optical behaviour of the OLED devices with Ag NW networks outperformed a control device fabricated on commercially available ITO anode, especially at higher operating voltages.

Full details can be found in the journal Nanotechnology.