Flutter-driven triboelectrification for harvesting wind energy
- Authors
- Bae, Jihyun; Lee, Jeongsu; Kim, SeongMin; Ha, Jaewook; Lee, Byoung-Sun; Park, YoungJun; Choong, Chweelin; Kim, Jin-Baek; Wang, Zhong Lin; Kim, Ho-Young; Park, Jong-Jin; Chung, U-In
- Issue Date
- Sep-2014
- Publisher
- NATURE PUBLISHING GROUP
- Citation
- NATURE COMMUNICATIONS, v.5
- Journal Title
- NATURE COMMUNICATIONS
- Volume
- 5
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/83903
- DOI
- 10.1038/ncomms5929
- ISSN
- 2041-1723
- Abstract
- Technologies to harvest electrical energy from wind have vast potentials because wind is one of the cleanest and most sustainable energy sources that nature provides. Here we propose a flutter-driven triboelectric generator that uses contact electrification caused by the self-sustained oscillation of flags. We study the coupled interaction between a fluttering flexible flag and a rigid plate. In doing so, we find three distinct contact modes: single, double and chaotic. The flutter-driven triboelectric generator having small dimensions of 7.5 x 5cm at wind speed of 15 ms(-1) exhibits high-electrical performances: an instantaneous output voltage of 200V and a current of 60 mu A with a high frequency of 158 Hz, giving an average power density of approximately 0.86mW. The flutter-driven triboelectric generation is a promising technology to drive electric devices in the outdoor environments in a sustainable manner.
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