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Rationally patterned electrode of direct-current triboelectric nanogenerators for ultrahigh effective surface charge density.


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-2, 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.

SUBMITTER: Zhao Z 

PROVIDER: S-EPMC7712892 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Rationally patterned electrode of direct-current triboelectric nanogenerators for ultrahigh effective surface charge density.

Zhao Zhihao Z   Dai Yejing Y   Liu Di D   Zhou Linglin L   Li Shaoxin S   Wang Zhong Lin ZL   Wang Jie J  

Nature communications 20201203 1


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  ...[more]

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