Preparation of highly conductive silver nanowires for electrically conductive adhesives

In this work, we reported a modified two-step polyol method to fabricate silver nanowires (AgNWs). The function of the reaction temperature and the first step and second step time was investigated. Through monitoring the experimental conditions, uniform AgNWs with a high aspect ratio were obtained. To further improve the electrical performance of the AgNWs, the resulting mixture was purified by centrifugation in the presence of a novel reagent (formamide). Without any post-treatment, the AgNWs exhibited low resistivity. Because this easily operated approach can reduce the production cost and time, it is expected to broaden the application of electrically conductive adhesives (ECAs) filled with AgNWs in the electronic industry.