Emerging Pyroelectric Nanogenerators to Convert Thermal Energy into Electrical Energy

Hanjun Ryu, Sang Woo Kim

Research output: Contribution to journalReview articlepeer-review

72 Citations (Scopus)


Pyroelectric energy harvesting systems have recently received substantial attention for their potential applications as power generators. In particular, the pyroelectric effect, which converts thermal energy into electrical energy, has been utilized as an infrared (IR) sensor, but upcoming sensor technology that requires a miniscule amount of power is able to utilize pyroelectric nanogenerators (PyNGs) as a power source. Herein, an overview of the progress in the development of PyNGs for an energy harvesting system that uses environmental or artificial energies such as the sun, body heat, and heaters, is provided. It begins with a brief introduction of the pyroelectric effect, and various polymer and ceramic materials based PyNGs are reviewed in detail. Various approaches for developing polymer-based PyNGs and various ceramic materials–based PyNGs are summarized in particular. Finally, challenges and perspectives regarding the PyNGs are described.

Original languageEnglish
Article number1903469
Issue number9
Publication statusPublished - 2021 Mar 4

Bibliographical note

Publisher Copyright:
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)


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