Finite element analysis of a 3D triboelectric nanogenerator for biophysical health monitoring applications

IF 1.9 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC Journal of Electrostatics Pub Date : 2023-10-18 DOI:10.1016/j.elstat.2023.103862

Shivani Gupta, Yogita Batra

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Abstract

The Triboelectric nanogenerator (TENG) has numerous applications in biophysical health monitoring due to its small size, lightweight, and economical use. The triboelectric effect occurs when two triboelectric materials with opposite polarities come into contact or rub against each other. This paper presents the simulated output performance of a three-dimensional TENG with two opposite dielectric circular layers separated by a distance of 0.05 μm. The bottom negative layer of polytetrafluoroethylene (PTFE) with a 0.5 μm diameter and 0.1 μm thickness has a negative aluminium electrode with the same dimensions. The top of the negative layer has cylindrical surface morphology. A layer of copper serves as both a positive layer and electrode with a diameter of 1 μm and a thickness of 0.1 μm. Furthermore, for analysis, PTFE is replaced by polyvinyl chloride (PVC) and polyethylene and the results are compared. The Finite Element Analysis (FEA) was used to analyze the geometry, employing a combination of Solid mechanics and Electrostatic module of COMSOL Multiphysics 5.6 software. The result shows that a maximum output voltage of 35.9 V was observed for an applied pulse pressure of 3 kPa as input. The results indicate that the TENGs have the potential to be used for various devices and wearable healthcare monitors.

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用于生物物理健康监测的三维摩擦电纳米发电机的有限元分析

摩擦电纳米发电机（TENG）由于其体积小、重量轻、使用经济，在生物物理健康监测中有许多应用。当两种极性相反的摩擦电材料相互接触或摩擦时，就会产生摩擦电效应。本文介绍了具有两个相隔0.05μm的相对圆形电介质层的三维TENG的模拟输出性能。直径为0.5μm、厚度为0.1μm的聚四氟乙烯（PTFE）底部负极具有相同尺寸的铝负极。负极层的顶部具有圆柱形表面形态。一层直径为1μm、厚度为0.1μm的铜既是正极层又是电极。此外，为了进行分析，用聚氯乙烯（PVC）和聚乙烯代替PTFE，并对结果进行了比较。有限元分析（FEA）用于分析几何结构，结合了COMSOL Multiphysics 5.6软件的固体力学和静电模块。结果表明，对于作为输入的3kPa的施加脉冲压力，观察到35.9V的最大输出电压。结果表明，Teng具有用于各种设备和可穿戴医疗保健监视器的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Electrostatics 工程技术-工程：电子与电气

CiteScore

4.00

自引率

11.10%

发文量

审稿时长

49 days

期刊介绍： The Journal of Electrostatics is the leading forum for publishing research findings that advance knowledge in the field of electrostatics. We invite submissions in the following areas: Electrostatic charge separation processes. Electrostatic manipulation of particles, droplets, and biological cells. Electrostatically driven or controlled fluid flow. Electrostatics in the gas phase.