Magnetic Fe doped ZnO nanofibers obtained by electrospinning

We demonstrate structural and room temperature magnetic properties of Fe doped ZnO nanofibers (NFs) obtained by electrospinning followed by calcination. The observed NFs, formed from crystalographically oriented, approximately 4.5 nm particles conglomerates, were approximately 200 nm in diameter. Th...

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Bibliographic Details
Published in:Journal of sol-gel science and technology 2012-03, Vol.61 (3), p.494-500
Main Authors: Baranowska-Korczyc, Anna, Reszka, Anna, Sobczak, Kamil, Sikora, Bożena, Dziawa, Piotr, Aleszkiewicz, Marta, Kłopotowski, Łukasz, Paszkowicz, Wojciech, Dłużewski, Piotr, Kowalski, Bogdan J., Kowalewski, Tomasz A., Sawicki, Maciej, Elbaum, Danek, Fronc, Krzysztof
Format: Article
Language:English
Subjects:
Biocompatibility
Ceramics
Chemistry
Chemistry and Materials Science
Colloidal gels. Colloidal sols
Colloidal state and disperse state
Composites
Crystal structure
Economics
Electron diffraction
Electrospinning
Exact sciences and technology
Ferromagnetism
General and physical chemistry
Glass
Inorganic Chemistry
Iron
Magnetic fields
Magnetic materials
Magnetic measurement
Magnetic properties
Magnetism
Materials Science
Materials selection
Nanofibers
Nanotechnology
Natural Materials
Optical and Electronic Materials
Original Paper
Precipitates
Substrates
Synthesis
Toxicity
Wurtzite
Zinc oxide
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Summary:We demonstrate structural and room temperature magnetic properties of Fe doped ZnO nanofibers (NFs) obtained by electrospinning followed by calcination. The observed NFs, formed from crystalographically oriented, approximately 4.5 nm particles conglomerates, were approximately 200 nm in diameter. The reported synthesis of room temperature ferromagnetic Fe doped ZnO NFs is both facile and economical, and is therefore suggested as a generic method of fabricating biocompatible magnetic materials. The major substrates selected for the NFs synthesis (Zn, Fe) comprised of relatively low toxicity materials. Incorporating 10% Fe into ZnO does not modify the wurtzite crystal structure of the host material. No evidence of impurity phase was detected by either X-ray or electron diffraction. Magnetometry studies and Magnetic Force Microscopy imaging reveal a local ferromagnetic order that persists up to room temperature. We suggest that the observed phenomenon is either due to a mechanism mediated by presence of oxygen vacancies and/or is related to iron-rich precipitates.
ISSN:0928-0707
1573-4846
DOI:10.1007/s10971-011-2650-1