Overview
A novel room temperature gas sensor for detection and quantification of flammable Liquefied Petroleum Gas (LPG) is provided by using activated carbon film as sensing film which can detect and quantify a dynamic range from 40ppm to 1000ppm at ambient temperature/condition. The sensor is highly sensitive, stable, has fast response time (~30 sec) and degassing time (~1 minute). In addition, its low cost fabrication, and portability adds to the advantage of using this sensor for real time application.