Vertical Blinds-Inspired Triboelectric Nanogenerator for Wind Energy Harvesting and Self-Powered Wind Speed Monitoring

Abstract

Triboelectric nanogenerators (TENGs) stand out in the evolving landscape of wind-energy harvesting because of their potential for sustainable energy production. Despite these advancements, challenges remain in achieving practical designs that integrate seamlessly into everyday environments. Our study introduces a vertical blind-shaped triboelectric nanogenerator (VB-TENG) inspired by common vertical blinds in residential settings. The VB-TENG harnesses wind energy through an innovative design involving thin, vertically aligned poly(ethylene terephthalate) films, each coated with aluminum. This design serves not only as a functional energy harvester but also as a harmonious addition to urban aesthetics, mimicking the appearance and movement of traditional blinds. Utilizing vortex-induced vibration, the VB-TENG efficiently converts wind energy into electricity, a process validated through simulation and high-speed camera analyses. Our extensive experiments demonstrate that the effectiveness of the VB-TENG is considerably influenced by structural elements such as the number, width, and thickness of the films, attached lead weights, and varying wind conditions. Furthermore, the capability of our harvester extends beyond energy harvesting to function as a self-powered wind sensor, showcasing its multifunctionality. The VB-TENG offers a unique combination of efficiency, aesthetic integration, and multifunctionality. This marks a significant step forward in wind-driven TENG technology by proposing an energy-harvesting solution that is effective and elegantly integrated into the fabric of daily living environments, paving the way for more sustainable and practical energy solutions.