One-dimensional nanowire assembly based on oriented polymer nanofibers

We develop a simple method for the parallel assembly of nanowires (NWs) based on oriented polymer nanofiber films. The nanowires dispersed in solution are aligned at the central space of parallel nanochannels formed by the well-oriented nanofibers as a result of the capillarity. Then, a general contact printing is used to realize the transfer of the nanowires from the donor nanofiber film to a receiver substrate. The mechanism involving ordered alignment of nanowires on oriented polymer nanofiber films was investigated based on the experimental result. This simple method can be served as a general approach and found a wide range of applications in the fabrication of NW-based devices.