Superficial modification of polyamide‐66 film for enhanced electrical performance and multimode functional triboelectric nanogenerators

Summary Polyamide‐66 (PA‐66) is categorized as a highly positive‐charged triboelectric film in the fabrication of triboelectric nanogenerators (TENGs). Furthermore, the surface area of triboelectric film is critical in TENG production. With a simple, cost‐effective, and scalable technique, this study represents a paradigm shift in the manufacture of high surface area PA‐66 triboelectric films. The fabricated PA‐66 film was superficially modified and provided a high surface area to result in enhanced charge generation. The fabricated film could harvest mechanical energy in various TENG operational modes such as vertical contact and lateral sliding modes. Various TENGs were fabricated in this work to demonstrate the different operation modes on the prepared film and its efficiency. The TENGs were utilized to harvest mechanical energy from wind and vehicle motion and track real‐time vehicle acceleration.