NDLI: UV assisted pyrolysis of solution deposited BiFeO$_{3}$ multiferroic thin films. Effects on microstructure and functional properties

Content Provider	Springer Nature Link
Author	Habouti, S. Solterbeck, C. H. Es Souni, M.
Copyright Year	2006
Abstract	BiFeO$_{3}$ thin films were processed on platinized silicon substrate via chemical solution deposition. Short wave UV assisted pyrolysis was conducted in oxygen atmosphere in order to obtain a fine and homogeneous grain structure. Phase pure thin films with a pronounced (100) texture were obtained at a fairly low annealing temperature of 600°C. For comparison specimens processed without UV assisted pyrolysis were also investigated. It is shown that UV assisted pyrolysis leads to a substantial improvement of leakage resistance properties. Polarization switching could also be obtained using capacitance-voltage (C-V) curves. The leakage current was investigated as a function of temperature. Interpretation in terms of Frenkel-Poole mechanism leads to a high trap depth in the range of 2.4 eV which is attributed to the creation of Fe$^{2+}$ centres. For both microstructures investigated well saturated magnetization loops were obtained with a remnant magnetization of 2Mr = 5.4 emu/cm$^{3}$ and a coercive fields in the range of 2Hc = 200 Oe. Slightly higher saturation magnetization 2Ms of 55.4 emu/cm$^{3}$ was obtained for UV assisted pyrolysis in comparison to 45.8 emu/cm$^{3}$ for the thin films processed without UV.
Starting Page	257
Ending Page	263
Page Count	7
File Format	PDF
ISSN	09280707
Journal	Journal of Sol-Gel Science and Technology
Volume Number	42
Issue Number	3
e-ISSN	15734846
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2006-10-17
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Multiferroic BiFeO$_{3}$ Dielectric properties Ferroelectric properties Leakage current Magnetic properties Ceramics, Glass, Composites, Natural Methods Inorganic Chemistry Optical and Electronic Materials Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Chemistry Materials Chemistry Biomaterials Condensed Matter Physics Electronic, Optical and Magnetic Materials

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