Min, G., Manjakkal, L. , Mulvihill, D. M. and Dahiya, R. S. (2020) Triboelectric nanogenerator with enhanced performance via an optimized low permittivity substrate. IEEE Sensors Journal, 20(13), pp. 6856-6862. (doi: 10.1109/JSEN.2019.2938605)
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Abstract
With electrical power generated from mechanical contact, triboelectric nanogenerators (TENGs) offer a promising route to realizing self-powered sensors. For effective usage, it is important to improve their limited power range (0.1-100 mW/cm2) and this can be achieved by optimizing the output performance. Among the factors that confer higher performance are materials with a strong triboelectric effect together with low permittivity, but it is challenging to optimize both within a single material. This paper presents a solution to this challenge by optimizing a low permittivity substrate beneath the tribo-contact layer. Results are simulated over a range of substrate permittivities. The open circuit voltage is found to increase by a factor of 1.6 in moving from PVDF to the lower permittivity PTFE. Two TENG devices have been fabricated with 100 μm PET and PTFE substrates to compare performance. The experiments confirm that lowering the substrate dielectric constant (i.e. PET to PTFE) raises the open circuit voltage in line with simulation predictions.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Manjakkal, Dr Libu 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 |
Journal Name: | IEEE Sensors Journal |
Publisher: | IEEE |
ISSN: | 1530-437X |
ISSN (Online): | 1558-1748 |
Published Online: | 30 August 2019 |
Copyright Holders: | Copyright © 2019 IEEE |
First Published: | First published in IEEE Sensors Journal 20(13): 6856-6862 |
Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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