Protein-based contact electrification and its uses for mechanical energy harvesting and humidity detecting

In recent years, the use of triboelectric nanogenerators (TENGs) has become an effective technique to harvest mechanical energy based on contact electrification and the electrostatic effect. However, the electric output of TENGs decreases in environments with high relative humidity (RH), which restricts their application. The reason for this phenomenon is that charge transfer in most TENGs occurs through an electron pathway. By using...