Piezo/Triboelectric Nanogenerator from Lithium-Modified Zinc Titanium Oxide Nanofibers to Monitor Contact in Sports

Badhulika, Sushmee (2023) Piezo/Triboelectric Nanogenerator from Lithium-Modified Zinc Titanium Oxide Nanofibers to Monitor Contact in Sports. ACS Applied Nano Materials, 6 (3). pp. 1770-1782. ISSN 2574-0970

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The need for technological innovation in competitive sports is crucial for self-monitoring and smart decision making. In this work, we demonstrate how intelligent sports and smart decision making can be achieved in cricket and boxing using lithium-modified zinc titanium oxide (LZTO) nanofibers based on piezoelectric nanogenerators (PENGs) and triboelectric nanogenerators (TENGs). Zinc titanium oxide (ZTO) nanofibers synthesized using electrospinning followed by a calcination technique are modified with lithium to increase the output of the nanogenerator. An optimized PENG is fabricated using 25 wt % loading of LZTO (d33 = 214 pm/V) in a poly(vinylidene fluoride) (PVDF) matrix as a double-layered structure and yields an open-circuit voltage (Voc) of 35 V and a short-circuit current (Isc) of 1.6 μA by manual tapping. To fabricate the TENG, Kapton and LZTO are used as negative and positive tribolayers, while Cu and adhesive polymer tape are used as the electrode and spacer, respectively. Furthermore, a hybrid nanogenerator (HNG) is fabricated by combining the PENG and TENG to produce a rectified voltage, current, and power density of up to 75 V, 3.2 μA, and 240 μW/cm2, respectively. These HNGs are integrated with a punching bag and demonstrated to differentiate among the six types of punches in boxing. Furthermore, PENGs are used in cricket to monitor the number of balls middled on the bat during practice and the contact of the ball with the bat and stumps for smart decision making. All kinds of lab-scale testing are done for these applications, which pave a way for exploring the frontiers in nanogenerator applications in sports as maintenance-free and self-powered sensing technology.

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IITH Creators:
IITH CreatorsORCiD
Badhulika, Sushmeeorcid.org/0000-0003-3237-3031
Item Type: Article
Uncontrolled Keywords: decision making; hybrid nanogenerator; intelligent sports; lithium-modified zinc titanium oxide; piezoelectric nanogenerator; triboelectric nanogenerator; Decisions makings; Hybrid nanogenerator; Intelligent sport; Lithium-modified zinc titania oxide; Nanogenerators; Piezoelectric nanogenerator; Technological innovation; Titania oxides; Triboelectric nanogenerator; Adhesives; Decision making; Fluorine compounds; Lithium compounds; Nanogenerators; Open circuit voltage; Piezoelectricity; Sports; Tin oxides; Titanium dioxide; Nanofibers
Subjects: Electrical Engineering
Electrical Engineering > Instruments and Instrumentation
Divisions: Department of Electrical Engineering
Depositing User: Mr Nigam Prasad Bisoyi
Date Deposited: 22 Aug 2023 05:37
Last Modified: 22 Aug 2023 05:37
URI: http://raiith.iith.ac.in/id/eprint/11594
Publisher URL: https://doi.org/10.1021/acsanm.2c04731
OA policy: https://v2.sherpa.ac.uk/id/publication/38049
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