Cu_<i>x</i>O Nanowires Based Flexible Ionovoltaic Device for Droplet-Flow-Induced Electrical Energy Generation

Abstract

An ionovoltaic device with an electrolyte–insulator–semiconductor structure is drawing much attention due to the electrical energy which can be generated by the movement of a water droplet. Herein, we employed a CuxO nanowires mesh as a semiconductor in an ionovoltaic device to control the resistance and investigated the significant influence of the resistance on the device performance. Further, we fabricated a flexible ionovoltaic device by utilizing CuxO nanowires mesh which was drop-casted on a polyimide substrate, to be applicable in various practical environments. Overall, our research extends the understanding of semiconductor resistance characteristics with ionovoltaic devices.