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Grating‐Structured Freestanding Triboelectric‐Layer Nanogenerator for Harvesting Mechanical Energy at 85% Total Conversion Efficiency
Author(s) -
Xie Yannan,
Wang Sihong,
Niu Simiao,
Lin Long,
Jing Qingshen,
Yang Jin,
Wu Zhengyun,
Wang Zhong Lin
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201402428
Subject(s) - triboelectric effect , nanogenerator , contact electrification , materials science , grating , electrode , layer (electronics) , optoelectronics , electrostatic induction , energy harvesting , energy conversion efficiency , nanotechnology , composite material , energy (signal processing) , piezoelectricity , chemistry , statistics , mathematics
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.