摩擦电效应
纳米发生器
能量收集
材料科学
电介质
机械能
光电子学
功率(物理)
电气工程
机械工程
纳米技术
复合材料
工程类
压电
量子力学
物理
作者
Jiaxin Wang,Lili Ma,Jinmei He,Yali Yao,Xuedan Zhu,Lei Peng,Jie Yang,Kanshe Li,Mengnan Qu
标识
DOI:10.1016/j.cej.2021.134002
摘要
The triboelectric nanogenerator (TENG) is a promising renewable energy conversion technology for harvesting various low-frequency mechanical motions in nature, such as human motion and raindrops. However, traditional TENGs still suffer from challenges including poor mechanical stability, low environmental adaptability, and single working mode. Herein, a scalable and flexible hybrid dielectric-based TENG (HD-TENG) based on triboelectric layer with internal micro/nano pores and hierarchical superhydrophobic micro-cilia structure has been developed and designed to effectively harvest energy from various human motions as well as natural environment (raindrops and waves). Working in the single-electrode mode, the HD-TENG demonstrates high output (∼465 V, ∼60 μA, ∼3.2 W m−2) and maintains a stable signal output under various deformations, vigorous washing, and high humidity environment. Furthermore, two liquid–solid generators are designed to separately harvest droplet energy and wave energy by bulk effect between placed top electrode and the developed HD-TENG. As a result, the output performance of the generators has been significantly improved through further parameter optimization, and peak power densities reach 215 mW m−2 and 1.3 W m−2, respectively. Due to the strong adaptability and simple fabrication, the versatile HD-TENG can serve as self-powered devices with energy harvested from various sources in different application scenarios.
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