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By spray assisted chemical vapor deposition process, we have elaborated Cu2ZnSnS4 thin films at various deposition temperatures without any sulfurization treatment. The (112) preferential orientation was showed by X-ray diffraction. Raman spectroscopy confirmed the CZTS kesterite structure. Band gap values ranging from 1.35 eV to 1.5 eV were obtained by optical measurements.
Recently, gas sensors based on the semiconducting metal-oxides such as ZnO have been found to be very useful for detecting ethanol vapor. Pure ZnO films have been investigated as sensors for ethanol. One of the requirements of the gas sensors is low power consumption, because the sensors need to work reliably and continuously. A low resistance material has lower driving power when it is used as a...
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