Research Area

Triboelectric Nanogenerators (TENGs) are a promising energy harvesting technology based on the triboelectric effect and electrostatic induction. They generate electricity through contact and separation of two dissimilar materials, often utilizing flexible polymers, biodegradable substrates, or micro/nano-structured surfaces. TENGs stand out for their simplicity, scalability, and ability to harvest low-frequency mechanical energy such as human motion, wind, or water flow. Recent advancements incorporate surface engineering, material modification, and hybridization with piezoelectric elements to enhance power output and durability, paving the way for applications in wearable electronics, smart textiles, and autonomous sensor networks

A self-powered sensor based on a triboelectric nanogenerator (TENG) is an advanced energy-autonomous system that harnesses ambient mechanical energy—such as motion, vibration, or airflow—to drive sensing operations without external power supplies. By converting mechanical stimuli into electrical signals through the triboelectric effect and electrostatic induction, TENG-based sensors serve a dual role as both power source and signal transducer. These sensors are particularly advantageous in applications like wearable health monitors, structural health diagnostics, and environmental surveillance, where flexibility, portability, and sustainability are critical. Their lightweight structure, compatibility with biodegradable and flexible materials, and ultra-low power consumption allow seamless integration into smart textiles, implantable devices, and wireless networks. Ongoing innovations are enhancing their sensitivity, responsiveness, and multiplexed sensing capabilities—marking a significant step toward the future of intelligent, self-sustaining systems in IoT and biomedical engineering.