Abstract
Potassium niobate (KNbO3 ), a lead free perovskite single crystal , was grown by top seeded solution growth method using K2O as self flux. The synthesized powder and grown crystal of KNbO3 were studied by various characterization techniques. The thermal stability of KNbO3 was determined by Thermo Gravimetric and Differential Thermogram (TG-DTG) analyses. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and Raman spectral studies reveal the formation of single phase orthorhombic structure of KNbO3 with space group Cm2m. In addition, Rietveld refinement analysis of XRD of KNbO3 confirms that there is no impurity or secondary phase formation in the grown crystal. Energy dispersive X-ray (EDS) analysis confirms the elemental composition and the presence of K, Nb and O. Chemical etching studies on the grown crystal reveal the layer by layer growth behavior.
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Acknowledgements
The authors would like to gratefully acknowledge the Department of Science and Technology (DST), Government of India, for financial support (DST Ref No.: SR/LOP/0027/SERC/2010(G) dated 12.09.2011).
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Raja, S., Ramesh Babu, R., Ramamurthi, K., Balamurugan, N. (2017). Synthesis, Growth and Characterization of Potassium Niobate (KNbO3) Single Crystal by Top Seeded Solution Growth Method. In: Ebenezar, J. (eds) Recent Trends in Materials Science and Applications. Springer Proceedings in Physics, vol 189. Springer, Cham. https://doi.org/10.1007/978-3-319-44890-9_42
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DOI: https://doi.org/10.1007/978-3-319-44890-9_42
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