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Flexible Energy Harvester with Piezoelectric and Thermoelectric Hybrid Mechanisms for Sustainable Harvesting

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Abstract

In this paper, we present a flexible hybrid energy harvester for single- or multi-source energy collection. To increase harvesting power, piezoelectric and thermoelectric conversions are used simultaneously. The piezoelectric portion of the harvester collects energy from low-frequency kinetic motion using frequency up-conversion. The thermoelectric part is suitable for harvesting energy from a curved surface, thanks to its flexibility. By harvesting from two different energy sources (kinetic and thermal), the harvester allows for sustainable energy harvesting. The average power density obtained was 28.57 and 0.64 μW/cm2 by piezoelectric and thermoelectric conversion, respectively.

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Acknowledgements

This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Korea government (MSIT) (No. NRF-2018R1A2A1A05023070, 2018R1A4A1025986).

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Author notes

  1. Yongkeun Oh, Dae-Sung Kwon are contributed equally to this work.

Authors and Affiliations

  1. School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea

    Yongkeun Oh, Dae-Sung Kwon, Wondo Kim, Min-Ook Kim, Hee-Jin Ko & Jongbaeg Kim

  2. Korea Institute of Industrial Technology (KITECH), 143 Hanggaul-ro, Ansan, 15588, Republic of Korea

    Youngkee Eun

  3. Institute of Science and Technology at Korea University at Sejong, Sejong, 30019, Republic of Korea

    Seong Gu Kang

Authors
  1. Yongkeun Oh
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  2. Dae-Sung Kwon
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  3. Youngkee Eun
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  4. Wondo Kim
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  5. Min-Ook Kim
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  6. Hee-Jin Ko
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  7. Seong Gu Kang
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  8. Jongbaeg Kim
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Correspondence to Jongbaeg Kim.

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Oh, Y., Kwon, DS., Eun, Y. et al. Flexible Energy Harvester with Piezoelectric and Thermoelectric Hybrid Mechanisms for Sustainable Harvesting. Int. J. of Precis. Eng. and Manuf.-Green Tech. 6, 691–698 (2019). https://doi.org/10.1007/s40684-019-00132-2

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  • DOI: https://doi.org/10.1007/s40684-019-00132-2

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