An arrow shaped silicon tip for polymeric nanofiber fabrication

We describe a technique for the formation of oriented single nanofibers, using an arrow shaped and scanned tip. The tip was dipped in a polymeric solution to gather a droplet as a deposition source. A sufficiently high potential, applied between the droplet and a counter electrode, initiated electrospray deposition of nanofibers on the counter electrode. By using our technique, we demonstrated the control of nanofiber fabrication and the nanofiber cross junction for the application of nanofiber based nanodevice.