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Proceedings Paper

Broadband vibration energy harvesting using triboelectric mechanism
Author(s): Lokesh Dhakar; F. E. H. Tay; Chengkuo Lee
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Paper Abstract

This paper demonstrates an approach to vibration energy harvesting using contact electrification or triboelectric mechanism. The device uses a cantilever to realize the contact electrification process when subjected to external vibrations. The device utilizes stiffening in the cantilever beam introduced by contact between two triboelectric layers to broaden the bandwidth of the vibrational energy harvester. The operating bandwidth of the energy harvester is shown to increase from 4.4 Hz to 17.8 Hz at RMS output voltage level of 60mV. The device was also observed to demonstrate continuous improvement in bandwidth as the acceleration level increased.

Paper Details

Date Published: 4 March 2015
PDF: 8 pages
Proc. SPIE 9302, International Conference on Experimental Mechanics 2014, 93021H (4 March 2015); doi: 10.1117/12.2080991
Show Author Affiliations
Lokesh Dhakar, National Univ. of Singapore (Singapore)
F. E. H. Tay, National Univ. of Singapore (Singapore)
Chengkuo Lee, National Univ. of Singapore (Singapore)


Published in SPIE Proceedings Vol. 9302:
International Conference on Experimental Mechanics 2014
Chenggen Quan; Kemao Qian; Anand Asundi; Fook Siong Chau, Editor(s)

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