Triboelectric generator based on a moving charged bead*Electronic supplementary information (ESI) available: More detailed information for analytic calculation via COMSOL about available charge distance between the PTFE bead and Cu electrode, illustration of the speed-dependence contact area, and time dependent long-term stability. (31st October 2016)

• Record Type: Journal Article
• Authors: Kim, Jihoon; Chae, Soo Sang; Han, Sun Woong; Lee, Keun Ho; Ki, Tae Hoon; Oh, Jin Young; Lee, Ji Hoon; Kim, Won Shik; Jang, Woo Soon; Baik, Hong Koo
• Is Part Of: Journal of physics. Volume 49:Number 47(2016)
• Publication Date: 2016-10-31
• Subjects: triboelectric -- generator -- harvesting -- energy conversion; Physics -- Periodicals; 530
• DOI: 10.1088/0022-3727/49/47/47LT02
• Languages: English
• ISSNs: 0022-3727

Abstract

Abstract: 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.