High-performance triboelectric nanogenerators based on commercial textiles: electrospun nylon 66 nanofibers on silk and PVDF on polyester

Bairagi, S., Khandelwal, G. , Karagiorgis, X., Gokhool, S., Kumar, C. , Min, G. and Mulvihill, D. M. (2022) High-performance triboelectric nanogenerators based on commercial textiles: electrospun nylon 66 nanofibers on silk and PVDF on polyester. ACS Applied Materials and Interfaces, 14(39), pp. 44591-44603. (doi: 10.1021/acsami.2c13092) (PMID:36150147) (PMCID:PMC9542703)

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A high-performance textile triboelectric nanogenerator is developed based on the common commercial fabrics silk and polyester (PET). Electrospun nylon 66 nanofibers were used to boost the tribo-positive performance of silk, and a poly(vinylidene difluoride) (PVDF) coating was deployed to increase the tribo-negativity of PET. The modifications confer a very significant boost in performance: output voltage and short-circuit current density increased ∼17 times (5.85 to 100 V) and ∼16 times (1.6 to 24.5 mA/m2), respectively, compared with the Silk/PET baseline. The maximum power density was 280 mW/m2 at a 4 MΩ resistance. The performance boost likely results from enhancing the tribo-positivity (and tribo-negativity) of the contact layers and from increased contact area facilitated by the electrospun nanofibers. Excellent stability and durability were demonstrated: the nylon nanofibers and PVDF coating provide high output, while the silk and PET substrate fabrics confer strength and flexibility. Rapid capacitor charging rates of 0.045 V/s (2 μF), 0.031 V/s (10 μF), and 0.011 V/s (22 μF) were demonstrated. Advantages include high output, a fully textile structure with excellent flexibility, and construction based on cost-effective commercial fabrics. The device is ideal as a power source for wearable electronic devices, and the approach can easily be deployed for other textiles.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Karagiorgis, Xenofon and Mulvihill, Dr Daniel and Min, Guanbo and Kumar, Dr Charchit and Bairagi, Dr Satyaranjan and Khandelwal, Dr Gaurav
Authors: Bairagi, S., Khandelwal, G., Karagiorgis, X., Gokhool, S., Kumar, C., Min, G., and Mulvihill, D. M.
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:ACS Applied Materials and Interfaces
Publisher:American Chemical Society
ISSN (Online):1944-8252
Published Online:23 September 2022
Copyright Holders:Copyright © 2022 The Authors
First Published:First published in ACS Applied Materials and Interfaces 14(39): 44591-44603
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
308617Next Generation Energy Autonomous Textile Fabrics based on Triboelectric NanogeneratorsDaniel MulvihillEngineering and Physical Sciences Research Council (EPSRC)EP/V003380/1ENG - Electronics & Nanoscale Engineering