Traditional methods enhancing the output performance of triboelectric nanogenerator (TENG) are mainly by increasing the number of single TENGs mechanically after controlling the materials surface structures and/or chemical modifications. We present an innovative TENG superimposed electrode layers by utilizing the edge effect of two charged parallel plates with poly-l-lactide (PLLA) slice and silicone sheet as the triboelectric materials and the extended part of Al electrode as the connection. When the gap distance (d) between the upper and lower friction surfaces is 1.5 cm, the d/L (L is the lateral size of TENG) is greater than 0.4, the short-circuit current (I_sc) of TENG stacked with four layer electrodes was 3 times larger than that of TENG with one layer electrode. The I_sc reaches a saturation when the number of superimposed electrode layers was beyond eight, corresponding to 3–5 times larger than that with one layer electrode. While the obtained I_sc was 2–5 times larger than that with one layer electrode, the volume of TENG based on superimposed electrode layers can be reduced by 50–80% compared to the traditional TENGs stacked the number of single TENGs. This simple, novel method paves a way for enhancing output current, more miniaturization of the TENG.

中文翻译：

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尺寸对基于叠加电极层的微型摩擦电纳米发电机输出功率的影响

传统的提高摩擦电纳米发电机（TENG）输出性能的方法主要是在控制材料的表面结构和/或化学改性后，通过机械方式增加单个TENG的数量。我们利用两个带电荷的平行板的边缘效应来展示一种创新的TENG叠加电极层，该两个平行板带有聚l-丙交酯（PLLA）片和硅酮片作为摩擦电材料，而Al电极的延伸部分作为连接。当上下摩擦表面之间的间隙距离（d）为1.5 cm时，d / L（L是TENG的横向尺寸）大于0.4，则短路电流（I _sc叠有四层电极的TENG的）是叠有一层电极的TENG的3倍。在我_SC达到饱和时重叠电极层的数量超出8，对应于比具有一层电极大3-5倍。而得到的予_SC比用一层电极大2-5倍，可通过50-80％降低TENG的基于重叠电极层的体积相比堆叠单腾的数量传统腾的。这种简单，新颖的方法为提高输出电流，使TENG更加小型化铺平了道路。