Stretchable Conductive Composites from Cu-Ag Nanowire Felt.

Materials that retain a high conductivity under strain are essential for wearable electronics. This article describes a conductive, stretchable composite consisting of a Cu-Ag core-shell nanowire felt infiltrated with a silicone elastomer. This composite exhibits a retention of conductivity under strain that is superior to any composite with a conductivity greater than 1000 S cm.

High-speed, solution-coatable memory based on Cu-SiO core-shell nanowires.

Printable electronics has the potential to drastically reduce the environmental and economic costs associated with the production of electronic devices, as well as enable rapid prototyping of circuits and their printing on demand, similar to what 3D printing has done for structural objects. A major barrier to the realization of printable computers that can run programs is the lack of a solution-coatable non-volatile memory with performance metrics comparable to silicon-based devices. Here we demonstrate a non-volatile memory based on Cu-SiO core-shell nanowires that can be printed from solution and exhibits on-off ratios of 10, switching speeds of 50 ns, a low operating voltage of 2 V, and operates for at least 10 cycles without failure.