Investigating output voltage for piezoelectric goodfellow polyacrylonitrile acoustic nanogenerator with graphene ink electrodes

Abstract

In recent years, piezoelectric nanogenerators have become more attractive than triboelectric nanogenerators due to their more excellent durability in high dust or humidity. Therefore, increasing their output is the subject of many studies. Here the focus is on electrodes of acoustic micro/nanofiber nanogenerators for the first time. Compared to other works here, introducing a new electrode is the aim, and it should be cheap and does not result in lower outputs. Here, for the first time, graphene spin-coated ink was used for a polyacrylonitrile-based acoustic nanogenerator, which gave the output of 60 mV. The results of the acoustic tests were compared with the in situ synthesis of nickel nanoparticles on the layer using graphene spin-coated screen ink and conductive tape, which had the highest outputs of 0, 60 and 120 mV. Additionally, the best way for increasing the output of piezoelectric acoustic nanogenerators is to make composites. Up to now the highest piezoelectric effect is for PAN and its composites have not been investigated yet. Here, as a first step of doing work in this field, I used a copolymer of PAN, because PAN is not a good polymer for doping and it needs functional groups.