Nano-structured ZnO/ITO based SO2 detector in room temperature operation
2015 2nd International Symposium on Physics and Technology of Sensors (ISPTS)(2015)
摘要
ZnO Nanostructured thin film of thickness 200nm was deposited on quartz by spray pyrolysis technique; further interdigitated ITO electrodes were fabricated by lithography. Compositional, surface morphology and electrical characterization of ZnO nanostructure thin film was done using X-ray photo electron spectroscopy (XPS), Secondary electron microscopy (SEM), and current-voltage (I-V) measurement technique respectively. SO
2
sensing was done by using a sealed container with the help of Keithley2400 SMU and MATLAB interface. It was observed that ZnO exhibited good response on exposure to SO2 gas.
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关键词
ZnO,nanostructure,SO2 gas detector,interdigitated electrode
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