Capillary force-induced printing of stretchable and mechanically stable silver nanowire electrodes with highly ordered alignment for ultra-flexible organic light-emitting devices

Transparent conductive electrodes (TCEs) have attracted considerable attentions as one of the essential components in optoelectronic devices. High conductivity, transmittance and flexibility are required for the practical applications of the TCEs in wearable and portable electronics. Here, a simple fabrication process of capillary force-induced printing has been developed to realize highly aligned silver nanowires (AgNWs) film with high flexibility, stretchability and conformability. Ultrathin and skin-attachable OLEDs have been realized based on the aligned AgNWs electrode. This work has proposed a low-cost and fast fabrication strategy to realize highly aligned AgNWs electrode for the flexible and stretchable optoelectronic devices.