Abstract Liquid droplet nanogenerators showcase significant potential in harvesting energy from natural sources rain or industrial processes involving liquids. However, their utility is limited by their low power output and the complexity of methods required to enhance efficiency. Here, the study presents an enhanced performance of the LSTENG, which leverages polarized surface to significantly enhance its output efficiency. The improved LSTENG design highlights with utilizing the effects of interface polarization through strategically contrasting dielectric distributions and the approach of ion surface treatment to modify the interface, achieves a superior instantaneous peak power density of 448 W m −2 . This performance doubles the previous highest research benchmark, and it is attained without employing any pre‐charge techniques. This new approach represents a pivotal advancement in energy harvesting landscapes, positioning LSTENG as a highly promising energy source with a greatly expanded range of potential applications.
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