A triboelectric nanogenerator (TENG) is an environmentally friendly energy-harvesting technology that has attracted considerable research attention as a sustainable energy source. Herein, a synergetic enhancement of TENGs’ performance using patterned polyvinylidene fluoride (PVDF) and nylon membranes and polymer membranes based on a facile phase-inversion process is reported. The phase-inversion method provides simple and fast patterned membrane formation to increase the surface area. The pyramid-patterned membranes are similar in size for both PVDF and nylon 6,6. In addition, the phase transition and crystallinity of PVDF and nylon are not varied, even after the patterning process, because the cooling rate is kept constant during the phase-inversion process. In a vertical contact-separation mode of the TENG operation, the patterned PVDF and nylon membranes show ≈2.5 times higher output performance in both the output voltage and current compared with that of the flat membranes. In addition, the performance of the patterned PVDF and nylon membranes does not degrade, even after 5000 cycle tests, because of the elastic nature of the patterned surfaces.

中文翻译：

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基于相转化工艺的图案化膜状摩擦电纳米发电机性能的协同增强

摩擦电纳米发电机（TENG）是一种环保的能量收集技术，作为一种可持续的能源，已经引起了相当多的研究关注。在本文中，报道了使用图案化的聚偏二氟乙烯（PVDF）和尼龙膜以及基于容易的相转化工艺的聚合物膜协同增强TENGs的性能。相转化方法提供简单且快速的图案化膜形成，以增加表面积。对于PVDF和尼龙6,6，金字塔形膜的尺寸相似。另外，即使在构图工艺之后，PVDF和尼龙的相变和结晶度也不会改变，因为在相转化工艺期间冷却速率保持恒定。在TENG操作的垂直接触分离模式下，与平膜相比，带图案的PVDF和尼龙膜在输出电压和电流方面的输出性能高出约2.5倍。另外，由于图案化表面的弹性性质，即使经过5000次循环测试，图案化PVDF和尼龙膜的性能也不会降低。