Grating-structured freestanding triboelectric-layer nanogenerator for harvesting mechanical energy at 85% total
Yannan Xie1, Sihong Wang, Simiao Niu
1School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0245, USA; Department of Physics, Xiamen University, Xiamen, 361005, Fujian, China.
Abstract:
A newly-designed triboelectric nanogenerator is demonstrated which is composed of a grating-segmented freestanding triboelectric layer and two groups of interdigitated electrodes with the same periodicity. The sliding motion of the grating units across the electrode fingers can be converted into multiple alternating currents through the external load due to the contact electrification and electrostatic induction. Working in non-contact mode, the device shows excellent stability and the total conversion efficiency can reach up to 85% at low operation frequency.
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