Broadband vibration energy harvesting using triboelectric mechanism

Lokesh Dhakar; F. E. H. Tay; Chengkuo Lee

doi:10.1117/12.2080991

4 March 2015 Broadband vibration energy harvesting using triboelectric mechanism

Lokesh Dhakar, F. E. H. Tay, Chengkuo Lee

Proceedings Volume 9302, International Conference on Experimental Mechanics 2014; 93021H (2015) https://doi.org/10.1117/12.2080991
Event: International Conference on Experimental Mechanics 2014, 2014, Singapore, Singapore

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.

Citation Download Citation

Lokesh Dhakar, F. E. H. Tay, and Chengkuo Lee "Broadband vibration energy harvesting using triboelectric mechanism", Proc. SPIE 9302, International Conference on Experimental Mechanics 2014, 93021H (4 March 2015); https://doi.org/10.1117/12.2080991

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