ZnO 1D nanostructures designed by combining atomic layer deposition and electrospinning for UV sensor applications

Abstract

We explored for the first time the ability of a three-dimensional polyacrylonitrile/ZnO material prepared by a low-cost and scalable synthesis method based on the combination of electrospinning and atomic layer deposition (ALD) as a new material with a large surface area to enhance the performance of UV photodetection. The UV photoresponse current was enhanced by a factor of 250 compared to a flat electrode. In addition an increase by a factor of 1.3 of the recovery time has been observed which is negligible versus the huge amount of current enhancement. The greatly improved performance and the good stability of these nanostructured electrodes induce exciting materials for use in UV sensor applications.