Flexible Sandwich-Structured Foldable Triboelectric Nanogenerator Based on Paper Substrate for Eco-Friendly Electronic Devices

Recently, as the use of wearable devices and the demand for eco-friendly energy have increased, many studies have been conducted on triboelectric nanogenerators (TENGs), which can economically harvest energy. Paper is considered a promising substrate and frame material that can be used to manufactur...

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Bibliographic Details
Published in:Energies (Basel) 2022-09, Vol.15 (17), p.6236
Main Authors: Kim, Da Eun, Park, Jiwon, Kim, Youn Tae
Format: Article
Language:English
Subjects:
Aluminum
Durability
eco-friendly
Electric contacts
Electric generators
Electrodes
Electronic equipment
Energy
Energy harvesting
Energy sources
Flexibility
Force and energy
Friction
Nanogenerators
paper substrate
Power supply
Rubber
stripe patterns
Substrates
triboelectric nanogenerator
Wearable technology
wearables
Wristwatches
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Summary:Recently, as the use of wearable devices and the demand for eco-friendly energy have increased, many studies have been conducted on triboelectric nanogenerators (TENGs), which can economically harvest energy. Paper is considered a promising substrate and frame material that can be used to manufacture self-powered TENGs, owing to its flexibility, low cost, and accessibility. Herein, we present a sandwich-structured foldable paper-based TENG (FP-TENG) that comprises flexible materials and uses paper as a substrate. The FP-TENG can generate up to 572 mW/m2 of power via contact–separation of the triboelectric electrified body at the top and bottom. With more folds of the FP-TENG, the triboelectric cross-sectional area increases, and, thus, the electrical output increases. In addition, the proposed TENG exhibits excellent durability without signal degradation under 5000 cycles of repeated pushing motions. To demonstrate its practicality, the FP-TENG was manufactured in the form of a wristwatch Velcro and connected to an electronic watch panel to supply power. Various deformations are possible with origami, and they can drive wristwatches through external forces. Therefore, the FP-TENG is expected to be utilized as a sustainable and promising eco-friendly energy source for small electronic devices.
ISSN:1996-1073
1996-1073
DOI:10.3390/en15176236