Influence of layer number and sintering on ferroelectric behaviour of barium titanate films prepared with sol-gel method

We have studied ferroelectric behaviour of barium titanate (BaTiO3) thin films prepared with sol-gel method. BaTiO3 solutions were deposited onto silicon substrates with different numbers of layers via spin coating method. The obtained samples were sintered at 700 °C and 800 °C. Structure and ferroe...

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Bibliographic Details
Published in:Journal of physics. Conference series 2018-03, Vol.985 (1), p.12034
Main Authors: Budiawanti, S, Soegijono, B, Mudzakir, I
Format: Article
Language:English
Subjects:
Barium titanates
Circuits
Crystallography
Diffraction patterns
Ferroelectric materials
Ferroelectricity
Physics
Polarization
Silicon substrates
Sol-gel processes
Spin coating
Thin films
X-ray diffraction
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Summary:We have studied ferroelectric behaviour of barium titanate (BaTiO3) thin films prepared with sol-gel method. BaTiO3 solutions were deposited onto silicon substrates with different numbers of layers via spin coating method. The obtained samples were sintered at 700 °C and 800 °C. Structure and ferroelectric properties of the samples were investigated using X-ray diffraction (XRD) and Sawyer-Tower circuit. As observed from XRD patterns, number of layers affected the films structure. Results also showed that crystallographic system of BaTiO3 thin films was characterized by a tetragonal structure. Maximum polarization increased with an increase in layer number. Spontaneous polarization was also observed increasing with an increase in temperature.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/985/1/012034