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Effect of Microwave Processing and Glass Inclusions on Thermoelectric Properties of P-Type Bismuth Antimony Telluride Alloys for Wearable Applications

Author

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  • Amin Nozariasbmarz

    (Electrical and Computer Engineering Department, Monteith Research Center, North Carolina State University, Raleigh, NC 27606, USA
    Materials Science and Engineering Department, Monteith Research Center, North Carolina State University, Raleigh, NC 27606, USA)

  • Daryoosh Vashaee

    (Electrical and Computer Engineering Department, Monteith Research Center, North Carolina State University, Raleigh, NC 27606, USA
    Materials Science and Engineering Department, Monteith Research Center, North Carolina State University, Raleigh, NC 27606, USA)

Abstract

Depending on the application of bismuth telluride thermoelectric materials in cooling, waste heat recovery, or wearable electronics, their material properties, and geometrical dimensions should be designed to optimize their performance. Recently, thermoelectric materials have gained a lot of interest in wearable electronic devices for body heat harvesting and cooling purposes. For efficient wearable electronic devices, thermoelectric materials with optimum properties, i.e., low thermal conductivity, high Seebeck coefficient, and high thermoelectric figure-of-merit (zT) at room temperature, are demanded. In this paper, we investigate the effect of glass inclusion, microwave processing, and annealing on the synthesis of high-performance p-type (Bi x Sb 1−x ) 2 Te 3 nanocomposites, optimized specially for body heat harvesting and body cooling applications. Our results show that glass inclusion could enhance the room temperature Seebeck coefficient by more than 10% while maintaining zT the same. Moreover, the combination of microwave radiation and post-annealing enables a 25% enhancement of zT at room temperature. A thermoelectric generator wristband, made of the developed materials, generates 300 μW power and 323 mV voltage when connected to the human body. Consequently, MW processing provides a new and effective way of synthesizing p-type (Bi x Sb 1−x ) 2 Te 3 alloys with optimum transport properties.

Suggested Citation

  • Amin Nozariasbmarz & Daryoosh Vashaee, 2020. "Effect of Microwave Processing and Glass Inclusions on Thermoelectric Properties of P-Type Bismuth Antimony Telluride Alloys for Wearable Applications," Energies, MDPI, vol. 13(17), pages 1-12, September.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:17:p:4524-:d:407112
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    References listed on IDEAS

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    1. Ravi Anant Kishore & Amin Nozariasbmarz & Bed Poudel & Mohan Sanghadasa & Shashank Priya, 2019. "Ultra-high performance wearable thermoelectric coolers with less materials," Nature Communications, Nature, vol. 10(1), pages 1-13, December.
    2. Rama Venkatasubramanian & Edward Siivola & Thomas Colpitts & Brooks O'Quinn, 2001. "Thin-film thermoelectric devices with high room-temperature figures of merit," Nature, Nature, vol. 413(6856), pages 597-602, October.
    3. Nozariasbmarz, Amin & Collins, Henry & Dsouza, Kelvin & Polash, Mobarak Hossain & Hosseini, Mahshid & Hyland, Melissa & Liu, Jie & Malhotra, Abhishek & Ortiz, Francisco Matos & Mohaddes, Farzad & Rame, 2020. "Review of wearable thermoelectric energy harvesting: From body temperature to electronic systems," Applied Energy, Elsevier, vol. 258(C).
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    Cited by:

    1. Sijing Zhu & Zheng Fan & Baoquan Feng & Runze Shi & Zexin Jiang & Ying Peng & Jie Gao & Lei Miao & Kunihito Koumoto, 2022. "Review on Wearable Thermoelectric Generators: From Devices to Applications," Energies, MDPI, vol. 15(9), pages 1-27, May.
    2. Nozariasbmarz, Amin & Dycus, J. Houston & Cabral, Matthew J. & Flack, Chloe M. & Krasinski, Jerzy S. & LeBeau, James M. & Vashaee, Daryoosh, 2021. "Efficient self-powered wearable electronic systems enabled by microwave processed thermoelectric materials," Applied Energy, Elsevier, vol. 283(C).

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