Processing, device fabrication and electrical characterization of LaMnO 3 nanofibers

• DOI: 10.1016/j.mssp.2015.10.009
• Publication Date: 2015-11-20T15:28:43Z
• Authors: Khizar Hayat; S. Shaheen Shah; M. Yousaf; M. Javid Iqbal; Muhammad Ali; S. Ali; Muhammad Ajmal; Yaseen Iqbal
• Keywords: Electrospinning; Lanthanum manganite; Lanthanum

Abstract Lanthanum manganite (LaMnO 3 ) 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 LaMnO 3 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.