Preparation of hollow nanoarrays by instantaneous Joule heating stretching and the application in sensing

The hollow nanoarrays have great potential in both communication systems and monochromatic light conduction. At present, how to prepare the hollow nanoarrays quickly and efficiently is still a challenge. In this work, we introduce a kind of nanoarray supported by carbon nanotubes and oriented stretching by instantaneous Joule heating. The hollow nanoarrays have a small diameter, and are expected to enable single-mode transmission of light source signals, as well as the prospect of application in monochromatic photocatalysis. Therefore, the obtained hollow nanoarrays have a wide range of application prospects in the field of information transmission, catalysis and sensor.