Processing, device fabrication and electrical characterization of LaMnO3 nanofibers

被引:44
|
作者
Hayat, Khizar [1 ,2 ]
Shah, S. Shaheen [1 ]
Yousaf, M. [1 ]
Iqbal, M. Javid [1 ]
Ali, Muhammad [1 ]
Ali, S. [1 ]
Ajmal, Muhammad [3 ]
Iqbal, Yaseen [1 ]
机构
[1] Univ Peshawar, Dept Phys, Mat Res Lab, Peshawar 25120, Pakistan
[2] AWKUM, Dept Phys, Mardan 23200, Pakistan
[3] Islamia Coll Univ, Dept Phys, Peshawar 25120, Pakistan
关键词
Electrospinning; Nanofibers; Electrical microstructure; Electro-active regions; Impedance spectroscopy; TRANSPORT PROPERTIES; POLYMER NANOFIBERS; MANGANITE LAMNO3; ELECTROSPUN; SPECTROSCOPY; IMPEDANCE; SURFACE; PHASE;
D O I
10.1016/j.mssp.2015.10.009
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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 LaMn03 nanofibers (average diameter similar to 400 nm) when the composite nanofibers were calcined at 600 degrees 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. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:364 / 369
页数:6
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