In this study, we present an enhanced performance of the Liquid-Solid Triboelectric Nanogenerator (LSTENG), which leverages polarized surface to significantly enhance its output efficiency. The improved LSTENG design highlights a sandwich architecture with a needle electrode incorporating a composite polymer film, which effectively functions as an energy harvesting component. By utilizing the effects of interface polarization through strategically contrasting dielectric distributions, the LSTENG achieves an impressive instantaneous peak power density of 83 Wm-2, nearly doubling the output compared to a single film configuration. Furthermore, by incorporating plasma surface treatment to modify the interface, an impressive instantaneous peak power density of 448 Wm-2 has been demonstrated, marking an astonishing eightfold increasing over its previous performance level. This innovative approach represents a significant breakthrough in energy harvesting, positioning the LSTENG as a highly promising and potent energy source with a greatly expanded range of potential applications.
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