Bifunctional surface engineering via plasma polymer fluorocarbon film for high-performance triboelectric nanogenerator
발표자
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초록
내용
Triboelectric nanogenerators (TENG) are a transformative energy harvesting technology owing to their high-power output, simple architecture and low cost. TENGs generate electrical energy by harvesting chaotic and low frequency mechanical energy from human motions through the coupling of triboelectric effect and electrostatic induction. To date, Polytetrafluoroethylene (PTFE) and other fluorinated polymers accounted for negative tribolayers in more than 50% of reported TENG in the literature. However, they are thick, inflexible, and have poor adhesion for application to the human body. Plasma polymer fluorocarbon (PPFC) thin film produced by sputtering PTFE, low-cost, thin, flexible and biocompatible, has attracted significant attentions. Additionally, by coating a PPFC thin film on the surface of styrene–ethylene–butylene–styrene, wrinkled architecture is formed, improving the performance of TENG due to the enlarged area effect. We confirmed that the hierarchical wrinkled architecture TENG with maximized surface area shows excellent TENG performance.