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      The effect of gadolinium doping on the structural, magnetic and photoluminescence properties of electrospun bismuth ferrite nanofibers

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      Author
      George Philip G.
      Senthamizhan, A.
      Srinivasan Natarajan, T.
      Chandrasekaran G.
      Annal Therese H.
      Date
      2015
      Source Title
      Ceramics International
      Print ISSN
      0272-8842
      Publisher
      Elsevier Ltd
      Volume
      41
      Pages
      13361 - 13365
      Language
      English
      Type
      Article
      Item Usage Stats
      122
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      253
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      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 ferrite
      Gadolinium 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/11693/22292
      Published Version (Please cite this version)
      http://dx.doi.org/10.1016/j.ceramint.2015.07.122
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      • Nanotechnology Research Center (NANOTAM) 1006
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