4.7 Article

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

期刊

NANOMATERIALS
卷 11, 期 12, 页码 -

出版社

MDPI
DOI: 10.3390/nano11123431

关键词

coniform Helmholtz resonator; triboelectric nanogenerator; acoustic energy harvesting

资金

  1. National Natural Science Foundation of China [51879022, 51979045]
  2. Fundamental Research Funds for the Central Universities, China [3132019330, 3132021340]
  3. Dalian Outstanding Young Scientific and Technological Talents Project [2021RJ11]
  4. Innovation Group Project of Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) [311021013]

向作者/读者索取更多资源

The study proposed a low-cost, easily fabricated and high-performance CHR-TENG for acoustic energy harvesting, achieving a 58.2% higher power density and powering up to five LED bulbs, representing a practical approach for powering sensor devices in the age of the Internet of Things.
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 mu F 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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