Processing,device fabrication and electrical characterization of LaMnO3 nanofibers |
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| Institution: | 1. College of Architecture and Environment, Sichuan University, Chengdu 610065, Sichuan, China;2. National Engineering Technology Research Center for Flue Gas Desulfurization, Chengdu 610065, Sichuan, China;3. Institute of New Energy and Low Carbon Technology, Sichuan University, Chengdu 610065, Sichuan, China |
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| Abstract: | Lanthanum manganite (LaMnO3) nanofibers were synthesized using electrospinning technique. The size and uniformity of these nanofibers were optimized by varying PVP concentration. X-ray diffraction analysis revealed the formation of single phase LaMnO3 nanofibers (average diameter ~400 nm) when the composite nanofibers were calcined at 600 °C. M″ and Z″ spectroscopic plots of impedance spectroscopy data confirmed the presence of two distinct electro-active regions referred to as the grain and grain boundary regions. The activation energies of the grain and grain boundary regions were 0.27 eV and 0.41 eV, respectively; which suggested two different transport mechanisms in these fibers. |
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| Keywords: | Electrospinning Nanofibers Electrical microstructure Electro-active regions Impedance spectroscopy |
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