Sub-watt power triboelectric generator via polarization switching charge carrier

Seh Hoon Chung, Kyunghwan Cha, Myunghwan Song, Dongchang Kim, Deokjae Heo, Min Kun Kim, Heesoo Jung, Youngho Jin, Jinkee Hong, Jihoon Chung, Sangmin Lee

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Triboelectric nanogenerator (TENGs) is one of the promising energy harvesting methods, and is expected to serve as primary power source. Nevertheless, previous TENGs were only able to generate low-current outputs. Even when energy management systems (EMSs) are used for TENGs, electrical losses occurred owing to complicated EMS circuits. Accordingly, high-mechanical inputs were still necessary to match power levels for existing electronics. Therefore, film capacitor-based charge-carrier TENGs (FCC-TENGs) are fabricated herein. These can be easily utilized for various circuits owing to their ultrahigh output with low input. As film capacitor-covered charge-carrier cylinders are rolling, FCC-TENGs can produce high voltage and current outputs of about 5000 V and 10 A, respectively, and can effectively reduce friction and wear. By loading external load, the root mean square power of FCC-TENG is measured up to 720 mW. Given the generated outputs, FCC-TENG can be used as primary power source for several power supply circuits that can turn on 12 commercial 5 W light-emitting diodes, power electric device, and charge lithium-ion battery.

Original languageEnglish
Article number107754
JournalNano Energy
Publication statusPublished - 2022 Dec 1

Bibliographical note

Publisher Copyright:
© 2022

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • General Materials Science
  • Electrical and Electronic Engineering


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