Impact of UV radiation on sensing properties of conductive polymer and ZnO blend for NO2 gas sensing at room temperature

Abstract

—In this paper we present an investigation on UV radiation impact on an organic-inorganic blend made from a conductive polymer (regio-regular poly(3-hexyltiophene) (rr-P3HT) and a zinc oxide (ZnO) nanomaterial, which was used as the sensing layer for a chemoresistor structure. The study showed that UV radiation has a significant impact on the dynamics of the response of the studied sensor, which can be a significant element to improve the operation of such a sensor at room temperature.