Flutter-driven triboelectrification for harvesting wind energy

Jihyun Bae, Jeongsu Lee, SeongMin Kim, Jaewook Ha, Byoung-Sun Lee, YoungJun Park, Chweelin Choong, Jin-Baek Kim, Zhong Lin Wang, Ho-Young Kim (), Jong-Jin Park () and U-In Chung
Additional contact information
Jihyun Bae: Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co.
Jeongsu Lee: Seoul National University
SeongMin Kim: Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co.
Jaewook Ha: Korea Advanced Institute of Science and Technology
Byoung-Sun Lee: Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co.
YoungJun Park: DMC R&D Center, Samsung Electronics Co. Ltd.
Chweelin Choong: Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co.
Jin-Baek Kim: Korea Advanced Institute of Science and Technology
Zhong Lin Wang: Georgia Institute of Technology, School of Materials Science and Engineering
Ho-Young Kim: Seoul National University
Jong-Jin Park: School of Polymer Science & Engineering, Chonnam National University
U-In Chung: Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co.

Nature Communications, 2014, vol. 5, issue 1, 1-9

Abstract: 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 × 5 cm at wind speed of 15 ms−1 exhibits high-electrical performances: an instantaneous output voltage of 200 V and a current of 60 μA with a high frequency of 158 Hz, giving an average power density of approximately 0.86 mW. The flutter-driven triboelectric generation is a promising technology to drive electric devices in the outdoor environments in a sustainable manner.

Date: 2014
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DOI: 10.1038/ncomms5929

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