4.7 Article

Tapping-Actuated Triboelectric Nanogenerator with Surface Charge Density Optimization for Human Motion Energy Harvesting

Journal

NANOMATERIALS
Volume 12, Issue 19, Pages -

Publisher

MDPI
DOI: 10.3390/nano12193271

Keywords

energy harvesting; triboelectricity; triboelectric nanogenerator; TENG; contact-separation mode; corona charging; IoT

Funding

  1. La Caixa Foundation [LCF/BQ/PR19/11700010]
  2. Dynamization Actions Europa Excelencia 2020 [EUR2020-112082]
  3. Ramon y Cajal Fellowship 2020 [RYC2020-030501-I]
  4. NextGenerationEU Instrument

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In this article, a triboelectric nanogenerator (TENG) has been developed to harvest mechanical energy from human motion and convert it into electrical energy. The energy generation has been optimized through material selection, design improvement, and charge injection. The TENG is capable of collecting mechanical energy from hand tapping and using it to power miniaturized electronic sensors in a self-sufficient and sustainable way.
In this article, triboelectric effect has been used to harvest mechanical energy from human motion and convert it into electrical energy. To do so, different ways of optimizing the energy generated have been studied through the correct selection of materials, the design of new spacers to improve the contact surface area, and charge injection by high-voltage corona charging to increase the charge density of dielectric materials. Finally, a triboelectric nanogenerator (TENG) has been manufactured, which is capable of collecting the mechanical energy of the force applied by hand tapping and using it to power miniaturized electronic sensors in a self-sufficient and sustainable way. This work shows the theoretical concept and simulations of the proposed TENG device, as well as the experimental work carried out.

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