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Electrical Characterization and Microstructures of Bi4-x Scx Ti3O12 Thin Films Grown by Pulsed Laser Deposition Technique
Abstract:
Sc-doped bismuth titanate (Bi4-xScxTi3O12: BST) and pure Bi4Ti3O12 (BIT) thin films with random orientation were fabricated on Pt/Ti/SiO2/Si substrates by pulsed laser deposition technique. These samples had polycrystalline Bi-layered perovskite structure without preferred orientation, and consisted of well developed rod-like grains with random orientation. The experimental results indicated that Sc doping into BIT result in a remarkable improvement in ferroelectric properties. The Pr and the Ec values of the BST film with x=0.75 were 25 μC/cm2 and 65 kV/cm, respectively.
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37-40
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November 2013
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© 2014 Trans Tech Publications Ltd. All Rights Reserved
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