Triboelectric generator based on a moving charged bead

Jihoon Kim, Soo Sang Chae, Sun Woong Han, Keun Ho Lee, Tae Hoon Ki, Jin Young Oh, Ji Hoon Lee, Won Shik Kim, Woo Soon Jang, Hong Koo Baik

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5 Citations (Scopus)


An energy harvesting system using a triboelectric generator (TEG), which converts a small amount of mechanical energy to available electrical energy, has recently been developed by combining a simple one-directional mechanical force (contact and separation or sliding back and forth) with a 2D device materials. However, with regard to using the TEG in real world applications, there is no TEG design suitable for utilizing a variety of mechanical forces and for generating triboelectric charge in various environmental conditions, especially under high relative humidity. In this work, we introduce a design for a humidity-independent triboelectric generator (HITEG) that can generate triboelectric charges with a granular system by simple rotating or shaking under high relative humidity conditions. The HITEG can generate an open-circuit voltage of 81.63 V and a short-circuit current of 213.9 nA using 80 polytetrafluoroethylene beads.

Original languageEnglish
Article number47LT02
JournalJournal of Physics D: Applied Physics
Issue number47
Publication statusPublished - 2016 Oct 31

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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    Kim, J., Chae, S. S., Han, S. W., Lee, K. H., Ki, T. H., Oh, J. Y., Lee, J. H., Kim, W. S., Jang, W. S., & Baik, H. K. (2016). Triboelectric generator based on a moving charged bead. Journal of Physics D: Applied Physics, 49(47), [47LT02].