High-Performance V ₂ O ₅ /Chitosan Composite Film-Based Triboelectric Nanogenerator for Mechanical Energy Harvesting and Smart Safety Wearable Applications

, respectively. The fabricated TENG device demonstrated robust performance and sustained stable electrical output over a long period. In addition, the generated electrical energy was efficiently stored in capacitors and utilized to power up low-power electronic devices. Furthermore, an optimized TENG device was placed at various locations on the human body to evaluate electrical output from biomechanical energy. Thereafter, the TENG-powered self-illuminating device was demonstrated as a smart safety walker wearable bracelet alert system.