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Structural, Optical and Ferroelectric Properties of BaTiO3 Sintered at Different Temperatures

Authors: Anurag Gaur, Neha Sharma

Abstract:

In this work, we have synthesized BaTiO3 via sol gel method by sintering at different temperatures (600, 700, 800, 900, 10000C) and studied their structural, optical and ferroelectric properties through X-ray diffraction (XRD), UV-Vis spectrophotometer and PE Loop Tracer. X-ray diffraction patterns of barium titanate samples show that the peaks of the diffractogram are successfully indexed with the tetragonal and cubic structure of BaTiO3. The Optical band gap calculated through UV Visible spectrophotometer varies from 4.37 to 3.80 eV for the samples sintered at 600 to 10000C, respectively. The particle size calculated through transmission electron microscopy varies from 20 to 40 nm for the samples sintered at 600 to 10000C, respectively. Moreover, it has been observed that the ferroelectricity increases as we increase the sintering temperature.

Keywords: Nanostructures, Ferroelectricity, Sol-gel method.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1335936

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