Nanotechnology based highly sensitive IoT capable sensing device

Abstract

Abstract It is hypothesized that development of gold nanoclusters over monolayer graphene film changes its sensing properties. Monolayer graphene is utilized in a resistive configuration and gold nanoclusters are developed via sputtering deposition. An interface circuit is designed with 45 nm technology Cadence tools. An internet of things (IoT) device is developed to transmit the sensing parameter. Our results show that the monolayer graphene sensor’s resistance decreases by 1.7% in response to 5% CO2 while it increases by 0.84% after development of gold nanoclusters. Sensor’s fabrication, testing results, with simulation of interface circuit and results of IoT are presented and discussed