Enhanced Triboelectric Nanogenerator Performance via an Optimised Low Permittivity, Low Thickness Substrate

Min, G., Manjakkal, L. , Mulvihill, D. M. and Dahiya, R. S. (2018) Enhanced Triboelectric Nanogenerator Performance via an Optimised Low Permittivity, Low Thickness Substrate. In: IEEE Sensors Conference, New Delhi, India, 28-31 Oct 2018, ISBN 9781538647080 (doi: 10.1109/ICSENS.2018.8589631)

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With electrical power generated from mechanical contact, the triboelectric nanogenerators (TEN Gs) have attracted attention recently as a promising route to realising self-powered sensors (e.g. tactile sensors, biomedical sensors etc.). Due to their limited power range (0.1-100 mW/cm 2 ), it is important to optimise the output performance of TENGs. Among the factors that confer higher performance are materials with a strong triboelectric effect and materials with low permittivity. It can be difficult to realize these two benefits in a single contact material. This paper presents a solution to this challenge by optimising a low permittivity substrate beneath the tribo-contact layer. Results are simulated over a range of both substrate permittivity and thickness. The open circuit voltage is found to increase by a factor of 1.8 in moving from PVDF to the lower permittivity PTFE and by a further factor of 37.2 when the substrate thickness is reduced from 200 to \pmb1 μm. For PTFE with \pmb1 μm thickness, this amounts to 12.2 kV, as against 327V known from simulations up to now. These results clearly indicate that optimized low permittivity, low thickness substrates represent a potential route to self-powered sensors.

Item Type:Conference Proceedings
Additional Information:This work was partially supported by EPSRC Engineering Fellowship for Growth under Grant (EP/M002527/1), UK.
Glasgow Author(s) Enlighten ID:Manjakkal, Dr Libu and Min, Guanbo and Dahiya, Professor Ravinder and Mulvihill, Dr Daniel
Authors: Min, G., Manjakkal, L., Mulvihill, D. M., and Dahiya, R. S.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
College of Science and Engineering > School of Engineering > Systems Power and Energy
Copyright Holders:Copyright © 2018 IEEE
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
170185Engineering Fellowships for Growth: Printed Tactile SKINRavinder DahiyaEngineering and Physical Sciences Research Council (EPSRC)EP/M002527/1ENG - Electronics & Nanoscale Engineering