Meena, DK and Bose, RSC and Umarji, AM and Babu, DA (2023) Polymer-mixed Sb2Te3/Te nanocomposites exhibiting p-type to n-type conduction reversal and thermal conductivity reduction. In: Materials Research Express, 10 (7).
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Abstract
Sb2Te3-based materials are potential room-temperature thermoelectric materials. In the present work, we choose polycrystalline Sb2Te3/Te nanocomposites and utilize Poly Methyl Methacrylate (PMMA) to reduce the thermal conductivity of Sb2Te3 samples. PMMA and polycrystalline Sb2Te3/Te were well mixed using ball milling. Pellets have been made by the cold press method. Thermoelectric transport properties of Sb2Te3/Te nanocomposites: composition, microstructure, and analysis are found to be influenced by PMMA. With increasing PMMA concentration a p-type to n-type transition has been observed because there are fewer charge carriers or the composites have a higher resistance. It is also observed that the thermal conductivity of Sb2Te3/Te nanocomposites decreases as the PMMA increases. This research paves the way for making the best thermoelectric materials by reducing thermal conductivity through the use of polymers.
| Item Type: | Journal Article |
|---|---|
| Publication: | Materials Research Express |
| Publisher: | Institute of Physics |
| Additional Information: | The copyright for this article belongs to the author. |
| Keywords: | nanocomposites; polycrystalline; thermal conductivity; thermoelectric |
| Department/Centre: | Division of Chemical Sciences > Materials Research Centre |
| Date Deposited: | 01 Aug 2023 05:09 |
| Last Modified: | 01 Aug 2023 05:09 |
| URI: | https://eprints.iisc.ac.in/id/eprint/82731 |
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