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A high-efficiency bioinspired photoelectric-electromechanical integrated nanogenerator

机译:一种高效的生物悬浮光电 - 机电集成纳米料

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Currently, the key challenge in triboelectric nanogenerators (TENGs) is how to efficiently enhance the surface charge density. Here, a new strategy is proposed to increase the surface charge density by comprehensively utilizing solar energy and tidal energy, and a bioinspired photoelectric-electromechanical integrated TENG (Pem-iTENG) is developed. This enhancement of output performance is greatly attributed to the accumulation of photoelectrons from photocatalysis and the triboelectric negative charges from contact electrification. Pem-iTENG shows a maximal open-circuit voltage of 124.2?V and a maximal short-circuit current density of 221.6?μA cm -2 under tidal wave and sunlight, an improvement by nearly a factor of 10 over that of reported TENGs based on solid-liquid contact electrification. More importantly, it exhibits a high energy conversion efficiency according to the evaluation method for solar cells. This work provides insights into development of high-performance TENGs by using different natural energy sources.
机译:目前,摩擦电纳米液(Tengs)中的关键挑战是如何有效地提高表面电荷密度。这里,提出了一种新的策略来通过全面利用太阳能和潮汐能来增加表面电荷密度,并且开发了一种生物悬浮的光电 - 机电集成腾(PEM-ITENG)。这种对输出性能的增强极大地归因于光电催化的光电子的积累和来自接触电气化的摩擦电负荷。 PEM-ITENG在潮汐波和阳光下,最大开口电压为124.2≤v,最大短路电流密度为221.6ΩΩmm-2,在报告的龄的历报中提高了近10倍。固液接触电气化。更重要的是,根据太阳能电池的评价方法,它表现出高能量转换效率。这项工作通过使用不同的自然能源,为高性能腾腾的开发提供了见解。

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