Polymer Nanocomposite based Chemiresistive NO{sub}2 Gas Sensor

摘要

Emission of harmful gases into the atmosphere pollutes the environment. These pollutants may have deleterious effects on ecosystems and affect human health. In order to control the emission of these harmful gases we first need to detect them. We present here the development of a polymer nanocomposite based gas sensor for detecting trace gas emissions in ambient environment. This project aims to build a compact, readily deployable and cost-effective gas sensor that produces measurable electrical resistance changes due to interaction of NO{sub}2 with a nanocomposite. Our sensor demonstrates parts-per billion (ppb) sensitivity with improved specificity into the ppb range through innovative functionalization and packaging of nanomaterial.