Raut, Krushna Kumari and Bali, Ashoka and Mallik, Ramesh Chandra (2012) Raman & Infrared Study of Bi Filled Co4Sb12. In: 56th DAE-Solid State Physics Symposium (SSPS), DEC 19-23, 2011 , SRM Univ, Kattankulathur, INDIA, pp. 855-856.
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Abstract
CoSb3 skutterudites are established thermoelectric materials in the 500-800K temperature range. Undoped and Bi filled CoSb3 samples were synthesized by induction melting-annealing process and phase confirmation done by X-Ray diffraction. The role of bismuth as a filler in CoSb3 was investigated by Raman and far infrared reflectance study. It was found that bismuth strengthens Sb vibrations, and can potentially scatter Sb related acoustic phonons effectively. As a result substantial reduction in thermal conductivity may be possible with proper control of Bi filling.
Item Type: | Conference Proceedings |
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Series.: | AIP Conference Proceedings - 1447 |
Publisher: | AMER INST PHYSICS |
Additional Information: | Copyright for this article belongs to the American Institute of Physics |
Keywords: | thermoelectric;induction melting;Raman;infrared;phonon |
Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
Date Deposited: | 29 Nov 2012 08:43 |
Last Modified: | 29 Nov 2012 08:51 |
URI: | http://eprints.iisc.ac.in/id/eprint/45121 |
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