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Authors

Dharmendra Kumar Khatik

Dr. Rajesh Kumar Kushwaha

Abstract

Gas sensors are used in environmental observing, industrial safety, disease diagnostics, & traffic safety. Toxic environmental pollutants & dangerous gas escapes from factories are two of their most common uses. In order to supplement more traditional approaches, such as optical or spectroscopic analyzers, there is a growing interest in developing inexpensive gas sensors for use in environmental & civil monitoring applications. Finding novel materials that combine long-term functioning devices with excellent sensitivity & selectivity is the current focus of gas sensor research. Portable equipment & devices that run on batteries are in high demand for a wide range of uses. It has recently come to light that metal oxides are the superior material class for gas sensor applications. More promising over-the-applet detectors appear to be metal oxide films, either thin or thick. Porous pallets, thick films, & thin films made of metal oxides are utilised. The deposition of thin films can be accomplished using a variety of approaches. The two main types of these techniques are chemical deposition & physical deposition.

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