Large scale assembly of carbon nanotube-based integrated circuit structures via "surface-programmed assembly" method

We present a high-precision mass production method for single walled carbon nanotube (SWCNT)-based circuits. In this strategy named "surface-programmed assembly", SWCNTs from the suspension are attracted toward molecular patterns on the substrate and assemble onto specific locations with precise orientations. Significantly, since the method does not rely on any external forces or slow serial patterning techniques, it can be done in a completely parallel manner and is suitable for high-throughput applications. We assembled millions of individual SWCNTs and SWCNT-based circuit structures over ∼ 1cm² size sample surface in a matter of minutes with a high yield.