1Ferroelectric Research Laboratory, Department of Physics, A.N. College, Patna 800013, India
2Department of Ceramics and Glass Engineering and CICECO, University of Aveiro, 3810-193, Aveiro, Portugal
3Department of Physics, Indian Institute of Technology Madras, Chennai 600036, India
Adv. Mater. Lett., 2013, 4 (10), pp 749-753
DOI: 10.5185/amlett.2013.2425
Publication Date (Web): Oct 13, 2013
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E-mail: seema_sharma26@yahoo.com
One dimensional nanofibers of organic and inorganic materials have been used in filters, optoelectronic devices, sensors etc. It is difficult to obtain ultra fine fibers of inorganic materials having lengths in the order of millimeter as they tend to break during formation due to thermal and other mechanical stresses. In this study, we have investigated the mechanism to prevent the defect formation and the breaking of CuO nanofibers by using optimized heat flow rates. CuO nanofibers were obtained by heat treating the poly(vinyl acetate) PVA composite fibers formed by electrospinning. The morphology and structural characteristics of prepared samples were investigated by Scanning electron microscopy, Transmission electron microscopy and X-ray diffraction. It was found that the morphology of the composite and annealed nanofibers could be influenced by the concentration of the polymer content. A lower concentration favors the formation of defects along the fiber and the number of defects reduces when the concentration is increased.
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