Boosting Output Performance of Sliding Mode Triboelectric Nanogenerator by Charge Space-accumulation Effect

Overview

Journal Nat Commun

Specialty Biology

Date 2020 Aug 28

PMID 32848138

Citations 24

Authors

Wencong He

Wenlin Liu

Jie Chen

Zhao Wang

Yike Liu

Xianjie Pu

Hongmei Yang

Qian Tang

Huake Yang

Hengyu Guo

Chenguo Hu

Affiliations

Soon will be listed here.

Abstract

The sliding mode triboelectric nanogenerator (S-TENG) is an effective technology for in-plane low-frequency mechanical energy harvesting. However, as surface modification of tribo-materials and charge excitation strategies are not well applicable for this mode, output performance promotion of S-TENG has no breakthrough recently. Herein, we propose a new strategy by designing shielding layer and alternative blank-tribo-area enabled charge space-accumulation (CSA) for enormously improving the charge density of S-TENG. It is found that the shielding layer prevents the air breakdown on the interface of tribo-layers effectively and the blank-tribo-area with charge dissipation on its surface of tribo-material promotes charge accumulation. The charge space-accumulation mechanism is analyzed theoretically and verified by experiments. The charge density of CSA-S-TENG achieves a 2.3 fold enhancement (1.63 mC m) of normal S-TENG in ambient conditions. This work provides a deep understanding of the working mechanism of S-TENG and an effective strategy for promoting its output performance.

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