A Self-Powered, Flexible Triboelectric Nanogenerator for Wireless Sensor Systems

Shingirirai Chakoma, Dr. Jerome Rajendran, Xiaochang Pei, Anita Ghandehari, Jorge Alfonso Tavares Negrete, Rahim Esfandyarpour

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Keywords: Triboelectric Nanogenerator, Self-power, Wireless, Force sensing, Flexible, Battery-free

Abstract: Wireless sensor systems face key challenges, including reliance on batteries, complex circuitry, high fabrication costs, and limited durability in harsh or remote environments. These limitations hinder long-term, autonomous sensing, particularly for wearable, military, and environmental applications. To overcome these issues, we present a fully self-powered, battery-free, and flexible wireless force sensing platform based on a 3D multi-nanomaterials printed triboelectric nanogenerator (TENG). Our system uses low-cost, multi-nanomaterials 3D printing to fabricate a mechanically robust TENG integrated with an antenna to form a passive RLC circuit for wireless signal transmission. By incorporating a diode-switch configuration, the high output impedance of the TENG is reduced, enabling direct, efficient resonance-based wireless transmission in the megahertz range. The system transmits force information through shifts in resonant frequency, offering stability against environmental variations. Additionally, we demonstrate wireless power transfer by rectifying the received signal to power an LED remotely. This compact, battery-free, active electronics-free platform provides a promising solution for sustainable, self-powered autonomous wireless sensing in inaccessible or resource-limited environments.

Track: 5. Conformable decoders, unintrusive, comfortable, self-powered sensors and systems

NominateReviewer: Jerome Rajendran: [e-mail]

Submission Number: 56