The effect of gadolinium doping on the structural, magnetic and photoluminescence properties of electrospun bismuth ferrite nanofibers
Author
George Philip G.
Senthamizhan, A.
Srinivasan Natarajan, T.
Chandrasekaran G.
Annal Therese H.
Date
2015Source Title
Ceramics International
Print ISSN
0272-8842
Publisher
Elsevier Ltd
Volume
41
Pages
13361 - 13365
Language
English
Type
ArticleItem Usage Stats
122
views
views
253
downloads
downloads
Abstract
Gadolinium (Gd) doped Bismuth ferrite (BFO) nanofibers (Bi1-xGdxFeO3 (x=0.0, 0.05, 0.10, 0.15 and 0.20)) were synthesized via electrospinning. Scanning Electron Microscope (SEM) analysis showed that the diameter of the nanofibers ranged from 150 to 250 nm. X-Ray Diffraction (XRD) analysis revealed a structural phase transition with varying 'x', the compositions with x≤0.10 have crystal structures with space group R3c, while the compositions with x > 0.10 have crystal structures with space group Pnma. Vibrating Sample Magnetometer (VSM) analysis exhibited the weak ferromagnetic nature of the BFO nanofibers. However an increase in the saturated magnetic moment with increase in Gd dopant concentration was observed. The Photoluminescence (PL) spectra of the Bi:1-x :x nanofibers show enhanced Near Band Emission (NBE) intensity at x=0.10 due to the passivation of oxygen vacancies by Gd doping. © 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
Keywords
Bismuth ferriteGadolinium doping
Luminescence
Magnetic measurements
Nanofabrication
Nanostructured materials
Bismuth
Doping (additives)
Ferrite
Gadolinium
Iron oxides
Luminescence
Magnetic moments
Magnetic variables measurement
Magnetism
Nanostructured materials
Nanotechnology
Oxygen vacancies
Photoluminescence
Scanning electron microscopy
X ray diffraction analysis
Band emission
Bismuth ferrites
Dopant concentrations
Photoluminescence properties
Photoluminescence spectrum
Space group R3c
Structural phase transition
Vibrating sample magnetometer
Nanofibers
Permalink
http://hdl.handle.net/11693/22292Published Version (Please cite this version)
http://dx.doi.org/10.1016/j.ceramint.2015.07.122Collections
Related items
Showing items related by title, author, creator and subject.
-
Room temperature sub-micron magnetic imaging by scanning hall probe microscopy
Sandhu, A.; Masuda, H.; Oral, A.; Bending, S. J. (Japan Society of Applied Physics, 2001)An ultra-high sensitive room temperature scanning Hall probe microscope (RT-SHPM) system incorporating a GaAs/A1GaAs micro-Hall probe was used for the direct magnetic imaging of localized magnetic field fluctuations in ... -
Bean-Livingston surface barriers for flux penetration in Bi 2Sr 2CaCu 2O 8+δ single crystals near the transition temperature
Mihalache V.; Dede, M.; Oral, A.; Miu L. (2011)The first field for magnetic flux penetration H p in Bi 2Sr 2CaCu 2O 8+δ (Bi-2212) single crystals near the critical temperature T c was investigated from the local magnetic hysteresis loops registered for different magnetic ... -
Convection-reaction equation based magnetic resonance electrical properties tomography (cr-MREPT)
Hafalir, F. S.; Oran, O. F.; Gurler, N.; Ider, Y. Z. (Institute of Electrical and Electronics Engineers Inc., 2014)Images of electrical conductivity and permittivity of tissues may be used for diagnostic purposes as well as for estimating local specific absorption rate distributions. Magnetic resonance electrical properties tomography ...