Grating-Structured Freestanding Triboelectric-Layer Nanogenerator for Harvesting Mechanical Energy at 85% Total Conversion Efficiency

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 mul...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2014-10, Vol.26 (38), p.6599-6607
Main Authors: Xie, Yannan, Wang, Sihong, Niu, Simiao, Lin, Long, Jing, Qingshen, Yang, Jin, Wu, Zhengyun, Wang, Zhong Lin
Format: Article
Language:English
Subjects:
Contact
contact electrification
Conversion
Devices
Electrification
Electrodes
electrostatic induction
Fingers
mechanical energy harvesting
Nanostructure
self-powering technology
Stability
triboelectric nanogenerator
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Summary: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.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201402428