A High-Performance Coniform Helmholtz Resonator-Based Triboelectric Nanogenerator for Acoustic Energy Harvesting

Harvesting acoustic energy in the environment and converting it into electricity can provide essential ideas for self-powering the widely distributed sensor devices in the age of the Internet of Things. In this study, we propose a low-cost, easily fabricated and high-performance coniform Helmholtz r...

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Published inNanomaterials (Basel, Switzerland) Vol. 11; no. 12; p. 3431
Main Authors Yuan, Haichao, Yu, Hongyong, Liu, Xiangyu, Zhao, Hongfa, Zhang, Yiping, Xi, Ziyue, Zhang, Qiqi, Liu, Ling, Lin, Yejin, Pan, Xinxiang, Xu, Minyi
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 17.12.2021
MDPI
Subjects
acoustic energy harvesting
Acoustics
Aluminum
coniform Helmholtz resonator
Design
Electricity generation
Energy
Energy harvesting
Experiments
Frequency dependence
Frequency response
Helmholtz resonators
Internet of Things
Nanogenerators
Sensors
Sound pressure
triboelectric nanogenerator
Wave power
Wind power
triboelectric nanogenerator
acoustic energy harvesting
coniform Helmholtz resonator
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Summary:Harvesting acoustic energy in the environment and converting it into electricity can provide essential ideas for self-powering the widely distributed sensor devices in the age of the Internet of Things. In this study, we propose a low-cost, easily fabricated and high-performance coniform Helmholtz resonator-based Triboelectric Nanogenerator (CHR-TENG) with the purpose of acoustic energy harvesting. Output performances of the CHR-TENG with varied geometrical sizes were systematically investigated under different acoustic energy conditions. Remarkably, the CHR-TENG could achieve a 58.2% higher power density per unit of sound pressure of acoustic energy harvesting compared with the ever-reported best result. In addition, the reported CHR-TENG was demonstrated by charging a 1000 μF capacitor up to 3 V in 165 s, powering a sensor for continuous temperature and humidity monitoring and lighting up as many as five 0.5 W commercial LED bulbs for acoustic energy harvesting. With a collection features of high output performance, lightweight, wide frequency response band and environmental friendliness, the cleverly designed CHR-TENG represents a practicable acoustic energy harvesting approach for powering sensor devices in the age of the Internet of Things.
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These authors contributed equally to this work.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano11123431