Metal Doped ZnO Nanostructures for Enhanced Gas Sensing at Different Temperatures

Abstract

If the health conditions can be easily monitored on a daily basis, it will lead to the newlineextension of a healthy lifestyle without illness. The gas released from the exhaled breath newlineand the surface of the skin (skin gas) is closely related to the health condition and is a newlinebiomarker that is easy to detect. Especially in gas sensing, research on semiconductor newlinenanostructure and nanocomposite has attracted much attention due to the excellent newlineproperties such as surface area, electrical, and physical properties. newlineIn this work, synthesis and study of structural, morphological, optical and gas newlinesensing properties of ZnO nanostructures (Nanoparticles, Nanorods and Nanosheets) and newlinetransition metal (Al, Mn, Ag, Cu, and Fe) doped ZnO nanostructures were investigated. newlineZnO nanostructures and Transition metal doped ZnO nanocomposite were synthesized newlinethrough hydrothermal, solgel method and its structural, morphological, optical properties newlineand gas sensing properties were studied by using X-ray diffraction, Field Emission newlineScanning Electron Microscope, Transmission electron microscope, UV-Vis-NIR optical newlineabsorption, Raman and photoluminescence spectroscopy and Keithley 6515 electrometer newlinewas used to record resistance of high range newline