A polymer composite based organic FET multi-sensing device

Abstract

Field-Effect Transistors (FETs) are the key building blocks in a wide range of electronic applications such as sensors and electrical switches. The emergence of Organic Field-Effect Transistors (OFETs) unveiled special features, which have taken the application of FETs into uncharted territories. These unique features include but are not limited to, low- cost processing, lightweight, mechanical flexibility, biocompatibility, broad material availability, etc. Similar to their inorganic counterparts, doping organic semiconductors (OSC) can significantly alter or improve their electrical and optoelectronic properties, resulting in doping induced OFET multi-functionalities. In this study, the impact of multi-doping on the OFET device performance and functionalities has been systematically investigated and evaluated under varying conditions of light, heat, and gate voltages. The experimental results appear to support the proposed hypothesis behind the multi-functionality of the system under study. The present work will provide valuable scientific insights for the advancement of OFET based sensors, switches, and modulators.