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

Yongkeun Oh, Dae Sung Kwon, Youngkee Eun, Wondo Kim, Min Ook Kim, Hee Jin Ko, Seong Gu Kang, Jongbaeg Kim

Research output: Contribution to journalArticle

7 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)691-698
Number of pages8
JournalInternational Journal of Precision Engineering and Manufacturing - Green Technology
Volume6
Issue number4
DOIs
Publication statusPublished - 2019 Aug 1

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Management of Technology and Innovation

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