E-waste resistors-based triboelectric nanogenerators for sustainable energy harvesting and self-powered electronics

Sankarshan, B. M. and Maruthi Dhiren Palahalli, G and Rumana Farheen, S. M. and Adarsh Raj, L. and Sebghatullah, A. (2025) E-waste resistors-based triboelectric nanogenerators for sustainable energy harvesting and self-powered electronics. Sensors and Actuators A: Physical, 394. ISSN 09244247

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Abstract

The rapid generation of electronic waste (e-waste) poses a serious environmental challenge, necessitating innovative recycling strategies that add value to discarded materials. In the present work, a novel approach by incorporating recycled waste resistor powders into a polyvinyl alcohol (PVA) matrix to fabricate efficient triboelectric nanogenerators (PR-TENGs) for sustainable energy harvesting and self-powered electronic applications is explored. The impact of varying resistor concentrations and resistance values on the electrical output was systematically investigated. Optimal performance was achieved with a 0.8 g concentration of 1 kΩ resistor powder, yielding a significantly improved output of 224.00 V and 7.03 µA compared to plain PVA. Detailed material characterization of PR composite film from optimized device via SEM, EDS, PXRD, and FTIR revealed that the enhanced triboelectric generation is attributed to modifications in the composite's surface roughness, elemental composition, crystallinity, and functional group interactions induced by the resistor fillers. The energy harvesting capability of the optimized PR-TENG was further demonstrated through efficient charging of capacitors. Proof-of-concept applications, including powering a calculator, illuminating LEDs, and self-powered biomechanical sensor, highlight the potential of this approach for sustainable energy harvesting using recycled electronic waste. © 2025 Elsevier B.V.

Item Type:	Article
Uncontrolled Keywords:	E-waste; Energy harvesting; Resistors; Self-powered applications; Triboelectric nanogenerators
Subjects:	D Physical Science > Physics
Divisions:	Department of > Physics
Depositing User:	Vasantha library uom
Date Deposited:	29 Nov 2025 09:51
Last Modified:	29 Nov 2025 09:51
URI:	http://eprints.uni-mysore.ac.in/id/eprint/18087

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