Wenwu Zhu, Jun Peng, Ao Qin, Kanglong Yuan, Boshi Zhu, Shuai Lang, Jiliang Ma, Chuang Sun and Xuefeng Chen
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引用次数: 0
Abstract
The vertical motion configuration is a common design in triboelectric nanogenerators (TENGs) for energy harvesting; however, the performance optimization and comparison are still vague between various vertical motion-based structures. In this paper, time-averaged power density is defined as a metric to compare the power output performances of vertically structured TENGs, including contact mode and freestanding mode. To ensure comparisons under the same circumstances, a novel sandwich-structured dielectric layer was designed to maintain a stable and consistent surface charge density, with an extra rotating triboelectric nanogenerator working as a charge pump. We also investigated the impact of parasitic capacitance, which is a primary source of error in theoretical optimization. The freestanding TENG (FTENG) with a single dielectric layer demonstrates superior power performance, even when accounting for the influence of parasitic capacitance. This work provides valuable insights and guidelines for the design of high-performance mechanical energy harvesting devices.
垂直运动结构是三电纳米发电机(TENG)用于能量收集的一种常见设计,但各种基于垂直运动结构的性能优化和比较仍然模糊不清。本文将时间平均功率密度定义为比较垂直结构 TENG 功率输出性能的指标,包括接触模式和独立模式。为确保在相同情况下进行比较,我们设计了一种新型夹层结构介电层,以保持稳定一致的表面电荷密度,并额外设计了一个旋转三电纳米发电机作为电荷泵。我们还研究了寄生电容的影响,寄生电容是理论优化误差的主要来源。即使考虑到寄生电容的影响,具有单介质层的独立式 TENG(FTENG)也表现出了卓越的功率性能。这项研究为高性能机械能量收集装置的设计提供了宝贵的见解和指导。
期刊介绍:
Nanoscale is a high-impact international journal, publishing high-quality research across nanoscience and nanotechnology. Nanoscale publishes a full mix of research articles on experimental and theoretical work, including reviews, communications, and full papers.Highly interdisciplinary, this journal appeals to scientists, researchers and professionals interested in nanoscience and nanotechnology, quantum materials and quantum technology, including the areas of physics, chemistry, biology, medicine, materials, energy/environment, information technology, detection science, healthcare and drug discovery, and electronics.