Processing, device fabrication and electrical characterization of LaMnO3 nanofibers

Khizar Hayat; S. Shaheen Shah; M. Yousaf; M. Javid Iqbal; Muhammad Ali; S. Ali; Muhammad Ajmal; Yaseen Iqbal

doi:10.1016/j.mssp.2015.10.009

Processing, device fabrication and electrical characterization of LaMnO₃ nanofibers

Khizar Hayat
, S. Shaheen Shah
, M. Yousaf
, M. Javid Iqbal
, Muhammad Ali
, S. Ali
, Muhammad Ajmal
, Yaseen Iqbal^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

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.

Original language	English
Pages (from-to)	364-369
Number of pages	6
Journal	Materials Science in Semiconductor Processing
Volume	41
DOIs	https://doi.org/10.1016/j.mssp.2015.10.009
State	Published - 1 Jan 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Ltd. All rights reserved.

Keywords

Electrical microstructure
Electro-active regions
Electrospinning
Impedance spectroscopy
Nanofibers

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.mssp.2015.10.009

Cite this

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title = "Processing, device fabrication and electrical characterization of LaMnO3 nanofibers",

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 \textasciitilde{}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.",

keywords = "Electrical microstructure, Electro-active regions, Electrospinning, Impedance spectroscopy, Nanofibers",

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doi = "10.1016/j.mssp.2015.10.009",

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AU - Hayat, Khizar

AU - Shah, S. Shaheen

AU - Yousaf, M.

AU - Iqbal, M. Javid

AU - Ali, Muhammad

AU - Ali, S.

AU - Ajmal, Muhammad

AU - Iqbal, Yaseen

PY - 2016/1/1

Y1 - 2016/1/1

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AB - 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.

KW - Electrical microstructure

KW - Electro-active regions

KW - Electrospinning

KW - Impedance spectroscopy

KW - Nanofibers

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DO - 10.1016/j.mssp.2015.10.009

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