No abstract

No abstract

As one of the most important conductive materials, silver nanowires have recently attracted a lot of attention for potential applications such as electrically conductive adhesives, transparent electrodes, and conductive ink. In this paper, silver nanowires with a diameter of 200-570 nm and a length of 20-100 lm were synthesized by a polyol process. The electrically conductive adhesives (ECAs) composed of an epoxy-based binder containing silver nanowire were prepared and the curing behaviors and electrical properties of ECAs were investigated. The in situ monitoring of the variation in electrical resistance of the ECAs explore that silver nanowires impact on the curing behavior of the ECAs. The resistance of the ECAs filled with 40 wt% silver nanowires reaches to 0.59 X heated to 11 min from the room temperature to 164°C. Silver nanowires significantly improve the electrical conductivity of the ECAs, and the resistivities of the ECAs filled with 35 and 40 wt% silver nanowires is 9.48 9 10 -4 and 1.42 9 10 -4 X cm after cured at 168°C, respectively. The reasons for the effects of silver nanowires on the curing behavior and the electrical properties were also discussed in terms of the morphology and higher activity of silver nanowires.

Silver nanowires (AgNWs) with 200-570 nm in diameter and 20-70 lm in length were successfully synthesized by a polyol process. The transparent conductive and flexible AgNWs films were fabricated with using the mixed cellulose eater (MCE) as matrix by the improved vacuum filtration process. Then, the optical and electrical and mechanical properties of the AgNWs-MCE films were investigated. For the AgNWs-MCE film produced with a deposition density of 152 mg m -2 , the optical transmission at 550 nm is 81.98 % with R s around 312 X sq -1 , whereas at a deposition density of 190 mg m -2 an AgNWs-MCE film with an optical transmission of 79.0 % at 550 nm and R s around 16.6 X sq -1 . There is little overt increase in R s of the AgNWS-MCE film after tape tests for 200 times. The bending test indicated that the change in R s of AgNWs-MCE film is less than 8 % even after 200 cycles of compressive or tensile bending. The excellent mechanical properties of the AgNWs-MCE film can be attributed to the burying of the AgNWs film at the surface of MCEs. Two 0.5 W LED lamps with series fixed on the surface of AgNWs-MCE film with conductive adhesive were lighted, and they were still luminous after bent.