Title:	Synthesis, structural and morphological property of BaSnO3 nanopowder prepared by solid state ceramic method
Authors:	John, Jibi Mahadevan Pillai, V.P. Thomas, Anitta Rose Philip, Reji +3 Co-authors
Issue Date:	11-May-2017
Publisher:	IOP Publishing Ltd.
Citation:	IOP Conference Series: Materials Science and Engineering, 2017, Vol 195, p012007. Proceedings of 3rd International Conference on Structural Nano Composites (NANOSTRUC2016) 12–15 September 2016, Aberdeen, Scotland, UK
Abstract:	BaSnO3 is a cubic perovskite-type oxide that behaves as an n-type semiconductor with a wide band gap of 3.4 eV and remains stable at temperatures up to 1000°C. It has wide applications such as thermally stable capacitors, humidity sensors, gas sensors, etc. Barium stannate has also been used in optical applications, in capacitors and ceramic boundary layers, and as a promising material to produce gas phase sensors for the detection of carbon monoxide and carbon dioxide. BaSnO3 powder was prepared by solid state ceramic method. X-ray diffraction pattern of the prepared sample presents all the characteristic peaks of cubic phase of BaSnO3 (JCPDScard no: 15 -0780). The lattice constant for the compound was calculated and found to be 4.101A0 which is in agreement with the reported value (4.112A0). The average size of the crystallites estimated by Debye Scherrer's formula was found to be 49 nm shows the nanostructured nature. The Raman bands observed ~ 139, 833 and 1122 cm−1 can be assigned on the basis of the fundamental vibrations of SnO6 octahedron which has Oh symmetry, in the distorted perovskite structure. The SEM image shows a porous surface morphology with grains of cuboidal structure with well-defined grain boundaries. UV-Visible spectra shows BaSnO3powder exhibit high reflectance in the 400-700 nm range.
Description:	Open Access
URI:	http://hdl.handle.net/2289/6814
ISSN:	1757-899X (online) 1757-8981
Alternative Location:	http://dx.doi.org/10.1088/1757-899X/195/1/012007
Copyright:	2017 IOP Publishing Ltd.
Appears in Collections:	Research Papers (LAMP)

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