Solid state lithionics based gas-sensing and memristive device

Abstract

Gas sensing devices play a major role in many industries. From the sensing of toxic gases from industrial waste, breath analysis to diagnose diseases and gas sensing in agriculture industry, its importance is multifold. Specifically in the agricultural industries, the use of sensors to monitor fruit ripening is necessary to minimize the associated losses. The focus of this thesis is to not only develop an ethylene gas sensor but also see the effects of doping towards its properties. We have employed solid state ionics to modulate the Li-ion concentration by in-situ doping into ZnO. The utility of the sensor has been tested with ethylene gas as well as with real fruits to demonstrate the success of this device.