Strategies for effectively harvesting wind energy based on triboelectric nanogenerators

Wind energy has played a reasonable proportion in the current energy structure, extracting energy from wind sources attracts extensive attention in the era of global carbon neutrality. However, traditional wind turbine based on electromagnetic generator are not economic in some cases, the new technology demand for complementing conventional approaches is proposed. Recently, the emerging triboelectric nanogenerator (TENG) technology based on the coupling of contact electrification and electrostatic induction have been widely researched and utilized to scavenge wind energy, with the advantages of high efficiency, low cost and portability. Here, the recent advances of wind harvesters based on TENG are reviewed, where the material, structure design, power management and the developed strategies to optimize the performance of TENG-based wind harvesting system are summarized. Meanwhile, the hybridization of TENG with other types of energy harvesting techniques is discussed. Finally, the application, outlook and challenge in the growth of TENG-based wind harvester are outlined.