Abstract
In the present work nanofibers has been prepared by electrospinning method. Zinc Oxide nanofibrous thin film were electrospun on ITO substrate from a solution containing Poly Ethylene Oxide (PEO) and Zn(CH3COO)2.2H2O. Calcination process of ZnO/PEO composite at 600oC forms a random network of poly crystalline ZnO nanofiber. Surface morphology of the electrospun ZnO thin film, studied using FE-SEM shows a uniform, continous parallel aligned sharp nanofibers. The crystal structure and orientation of ZnO thin film was determined by X-ray diffraction (XRD). Gas sensing characteristics were studied on a custom made chamber based on two probe resistance measurement method. The film shows a good sensitivity towards organic vapours such as methanol, ethanol, acetone and propanol.
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