Rationally Patterned Electrode of Direct-current Triboelectric Nanogenerators for Ultrahigh Effective Surface Charge Density

Overview

Journal Nat Commun

Specialty Biology

Date 2020 Dec 4

PMID 33273477

Citations 17

Authors

Zhihao Zhao

Yejing Dai

Di Liu

Linglin Zhou

Shaoxin Li

Zhong Lin Wang

Jie Wang

Affiliations

Soon will be listed here.

Abstract

As a new-era of energy harvesting technology, the enhancement of triboelectric charge density of triboelectric nanogenerator (TENG) is always crucial for its large-scale application on Internet of Things (IoTs) and artificial intelligence (AI). Here, a microstructure-designed direct-current TENG (MDC-TENG) with rationally patterned electrode structure is presented to enhance its effective surface charge density by increasing the efficiency of contact electrification. Thus, the MDC-TENG achieves a record high charge density of ~5.4 mC m, which is over 2-fold the state-of-art of AC-TENGs and over 10-fold compared to previous DC-TENGs. The MDC-TENG realizes both the miniaturized device and high output performance. Meanwhile, its effective charge density can be further improved as the device size increases. Our work not only provides a miniaturization strategy of TENG for the application in IoTs and AI as energy supply or self-powered sensor, but also presents a paradigm shift for large-scale energy harvesting by TENGs.

Citing Articles

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Achieving Ultrahigh DC-Power Triboelectric Nanogenerators by Lightning Rod-Inspired Field Emission Modeling.

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