Facile Fabrication of Highly Conductive, Ultra-Smooth and Flexible Silver Nanowire Electrode for Organic Optoelectronic Devices

摘要： So far, one of the fundamental limitations of silver nanowires is the high contact resistance among their junctions. Moreover, a rough surface due to its random arrangement is inevitable to electrical short when the nanowire-based electronics is driving. To improve the contact resistance, we suggest the particle-shape nanocrystals are intentionally reduced at the junctions by a localized Joule-heat reduction approach from the silver ions. Via localized reductions, the reduced nanoparticles effectively weld the junction’s areas resulting in a 19% decrease in sheet resistance to 9.9 ?sq-1. Besides, the nanowires are embedded into a polyamide film with a gentle hot pressing. Consequently, the roughness was considerably dropped so that it was successful to demonstrate OLEDs (organic light-emitting diodes) with nanowires, which was beneficial to be laminated with OLEDs under the low temperature. The experimental results show the Ag NW embedding films reach 10.9?sq-1 of the sheet resistance at 92% transmittance and the roughness was only 1.92nm.