Triboelectric nanogenerator (TENG) energy harvester using polypropylene-based recycled food packaging materials

College

College of Science

Department/Unit

Physics

Document Type

Article

Source Title

Japanese Journal of Applied Physics

Volume

64

Issue

9

Publication Date

2025

Abstract

Triboelectric nanogenerators, or TENGs, harvest ambient mechanical energies and convert them to electricity by coupling triboelectrification and field induction. The apparatus comprises a dielectric as an electron acceptor and a metal layer as an electron donor. These devices are low-cost, simple, and can use waste plastic materials, like snack chip food packaging, as the dielectric layer. Snack chip packaging uses a multilayer of metalized Biaxially Oriented Polypropylene to preserve the food quality. This study fabricated two vertical contact-separation modes, TENGs-cl and rf, using waste materials as an upper layer, while the opposite layer is made from aluminum foil. TENG-cl and TENG-rf could generate an output voltage of 699.0 Vpp and 1045.0 Vpp, respectively. TENG-cl and rf generated a power density of 4.0 mW m−2 and 9.0 mW m−2 from the rms voltage across the 60 MΩ load resistor. The output was significantly higher than previously reported devices using similar materials. © 2025 The Japan Society of Applied Physics. All rights, including for text and data mining, AI training, and similar technologies, are reserved.

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Disciplines

Physics

Keywords

Nanogenerators; Energy harvesting; Plastic scrap

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