Read more
In recent years, gas sensors are playing a very prominent role in energy consumption, natural observation, and monitoring of air and gas quality, especially in the detection of explosions and dangerous gases. These sensors are attracted keenly by researchers to get rid of air pollution and security issues in the world. There are several techniques being used to sense gases such as gas chromatography, FTIR, mass spectrometer, semiconductor gas sensor, and so on. Among all, gas sensors based on semiconducting materials provide excellent gas sensing efficiency than gas detecting methods. Recently, the fiber optic-based chemical sensor method is also used. The operation is simple and easily fetched even in an unstable situation. In the optical fiber-based sensor, the transmitted light is used to investigate the properties of the refractive index and retention. On the other hand, metal oxide-based gas sensors are facilitated due to their potential applications in monitoring air and gas quality, detection of gas inflammation, defense security, and soon. Gas sensing efficiency is mainly based on the surface of the prepared sensors, morphology, internal structure, and surface area.
About the author
Dr. S. RATHINAVEL is an Assistant Professor.Dr. S. VADIVEL is an EEE Professor & Head/Physics. Dr. G. BALAJI is an Professor & Head/EEE.All authors work at Paavai Engineering College.
