The charge carrier concentration on the surface of metal oxide is.Useful to detect the concentration of different gases in the atmosphere.[]. Many 1 metal oxides show good sensitivities towards.Various gases like CO NH3 NOx,,,, SOx alcohol vapor and liquefied.Petroleum gas []. Amongst, 4 these it has been seen that the global.Warming and climate change are mainly due to the increase of.Carbon dioxide (CO2) in air atmosphere. Thus the detection,,And control of CO2 concentration in environment is necessary.Besides CO2 sensors, can be used in fields of, air-quality monitoringAgricultural production clean energy technologies engine,,,Exhausts and chemical industry [5]. Hence there is a need for.Development of fast and selectively detectable gas sensor to detect.The CO2.
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