• Dr.Kushal M.Mude

During study an effectiveness of gas sensing properties of MOS gas sensors,some parameters viz. sensitivity and stability plays very crucial role. These two parameters of the metal oxide semiconductor gas sensor depends on the temperature of the gas detector. Most of the metal oxide based gas sensors operate above the room temperature extending up to many hundred degrees centigrade and it's essential to understand the precise operating temperatures of those sensing elements. to realize good sensitivity stability, one should know and operate these elements accordingly. In present work we prepared a thick film of CuO metal oxides doped with ZnOand design CO2 gassensor.Thick film prepared by using screen printing technique and analysed by SEM. It was observed that, in optimized case of75ZnO:25CuO,the sensitivity increases progressively with temperature and becomes less steady at higher temperature values. From linear dependency, it deviates to a maximum value and beyond now the sensitivity falls rapidly,such behavior is being exhibited by most the metal oxide-based gas sensor.By study it proves that ,Role of composite 75ZnO:25CuO metal oxide semiconductor gas sensors is extremely useful for effective CO2 gas sensing mechanism as compared to Pure ZnO and CuO

CuO,ZnO, Metal Oxide Semiconductor(MOS),CO2 gas sensor,Scanning Electron Microscope(SEM).

"Study of composite Metal Oxides gas sensors for efficient carbon dioxide gas sensing device", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 6, page no.f15-f22, June-2021, Available :http://www.jetir.org/papers/JETIR2106701.pdf

"Study of composite Metal Oxides gas sensors for efficient carbon dioxide gas sensing device", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 6, page no. ppf15-f22, June-2021, Available at : http://www.jetir.org/papers/JETIR2106701.pdf