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Title: Low-temperature soft-chemical synthesis and thermoelectric properties of barium-filled p-type skutterudite nanocrystals
Authors: Banik, Ananya
Biswas, Kanishka
Keywords: Electrical & Electronic Engineering
Materials Science
Applied Physics
Condensed Matter Physics
Seebeck Coefficient
Thermal Conductivity
Cobalt Antimonide
Solution Phase Synthesis
Performance Bulk Thermoelectrics
Issue Date: 2014
Publisher: Elsevier Sci Ltd
Citation: Banik, A; Biswas, K, Low-temperature soft-chemical synthesis and thermoelectric properties of barium-filled p-type skutterudite nanocrystals. Materials Science In Semiconductor Processing 2014, 27, 593-598,
Materials Science In Semiconductor Processing
Abstract: Bulk skutteruclites, such as cobalt triantimonide (CoSb3) are promising inorganic materials for thermoelectric power generation at high temperatures. Generally, bulk CoSb3 is synthesized by high temperature solid state reactions. Herein, we demonstrate the low temperature solution phase synthesis of p-type nanocrystalline CoSb3 and Ba-filled CoSb3. increase in the temperature dependent Seebeck coefficient with simultaneous increase in temperature dependent electrical conductivity has been observed in the present nano crystalline samples, which is unusual in the case of bulk CoSb3. Efficient phonon scattering by nanoscale grain boundaries and the additional phonon damping due to the rattling of Ba in the void of nanocrystalline CoSb3 give rise to low thermal conductivity, which results in improved thermoelectric performance in nanocrystalline p-type Ba0.048CoSb3. (C) 2014 Elsevier Ltd. All rights reserved.
Description: Restricted Access
ISSN: 1369-8001
Appears in Collections:Research Papers (Kaniska Biswas)

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