triboelectric nanogenerators

Triboelectric nanogenerators (TENGs) are devices that convert mechanical energy, such as movement or friction, into electrical energy using the triboelectric effect—where certain materials become electrically charged after rubbing against each other. When two different materials contact and then separate, they generate an electric charge. TENGs harness this process, enabling energy harvesting from everyday motions like walking, vibrations, or wind. They are lightweight, flexible, and can produce clean, renewable electricity, making them promising for powering wearable devices, sensors, and small electronics without external power sources.