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

Date
2015
Authors
George Philip G.
Senthamizhan, A.
Srinivasan Natarajan, T.
Chandrasekaran G.
Annal Therese H.
Advisor
Instructor
Source Title
Ceramics International
Print ISSN
0272-8842
Electronic ISSN
Publisher
Elsevier Ltd
Volume
41
Issue
Pages
13361 - 13365
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
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.

Course
Other identifiers
Book Title
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
Citation
Published Version (Please cite this version)