Solid–liquid contact TENG using a melting near-field direct writing PCL nano-fiber structure

Zhang, Shuye; Chen, Yingjun; Wang, Dayin; He, Peng

doi:10.1080/19475411.2023.2168782

Cited by 4 publications

(1 citation statement)

References 31 publications

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“…In the past decade, hydrovoltaic technology, − which leverages the interaction between water and solid materials to generate electricity, has thrived. This progress has enabled energy capture from diverse water manifestations including flow, , drop, − waves, , and even evaporation …”

Section: Introductionmentioning

confidence: 99%

Assessing the Mechanical-to-Electrical Energy Conversion Process of a Droplet Sliding on the Poly(tetrafluoroethylene) Surface

Hu,

Li,

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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Utilizing moving droplets to generate electricity has garnered significant attention due to its high output voltage and power. However, the understanding of energy dissipation and conversion processes during droplet movement remains limited, hindering the development of effective ways to further enhance the device's performance. In this study, we developed a method to simultaneously evaluate the input mechanical energy and output electrical energy while droplets slide on a poly-(tetrafluoroethylene) (PTFE) surface to assess the energy conversion process. The influences of ion concentration, droplet volume, and contact area with PTFE on the energy conversion efficiency were investigated, suggesting optimized parameters. Moreover, by introduction of an asymmetric electric field on the PTFE surface, the input mechanical energy can be significantly reduced. In combination with the enhanced electrical output originating from improved surface charge density, the energy conversion efficiency is improved by an order of magnitude from 0.61 to 9.08%. These results shed light on strategies to improve device performance based on moving droplets.

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Section: Introductionmentioning

confidence: 99%

Assessing the Mechanical-to-Electrical Energy Conversion Process of a Droplet Sliding on the Poly(tetrafluoroethylene) Surface

Hu,

Li,

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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show abstract

Fully Integrated Direct Current Triboelectric Nanogenerators Coupled with Charge Pump and Electric Field Enhancing Effect Enabling Improved Output Performance

Chen,

Fang,

Zhang

et al. 2024

Adv Materials Technologies

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Direct‐current triboelectric nanogenerators (DC‐TENGs) arising from electrostatic breakdown have garnered significant attention due to their advantages of rectification‐free operation, constant current output, and high output power density. Previous studies have primarily concentrated on improving its performance through structural design and parameter optimization, neglecting the potential benefits of external charge excitation. Here, a facile and universal strategy coupling charge pump and electric field enhancing effect with DC‐TENG (CE‐DC‐TENG) is proposed to improve the output performance of DC‐TENG. An alternating current TENG is used as the charge pump. A field‐enhancing conductive layer, which is introduced under the main DC‐TENG, is connected with the pump TENG to accumulate the charge and enhance the electric field for electrostatic breakdown. The effectiveness of this method is demonstrated by linear and rotary sliding mode TENGs. Furthermore, a fully integrated rotary sliding mode CE‐DC‐TENG is designed and fabricated, and it exhibits impressive performance with a 13‐fold higher power density of 1.56 W m−2 compared to conventional DC‐TENG. Moreover, it can directly power small electronics or be combined with a designed power management circuit for more efficient energy conversion. This work presents a new design strategy for improving the performance of DC‐TENG and facilitating its practical applications.

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The coupled-motion enhanced wireless signal transmission with long distance based on Maxwell’s displacement current

Fang,

Chen,

et al. 2024

Nano Energy

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Solid–liquid contact TENG using a melting near-field direct writing PCL nano-fiber structure

Cited by 4 publications

References 31 publications

Assessing the Mechanical-to-Electrical Energy Conversion Process of a Droplet Sliding on the Poly(tetrafluoroethylene) Surface

Assessing the Mechanical-to-Electrical Energy Conversion Process of a Droplet Sliding on the Poly(tetrafluoroethylene) Surface

Fully Integrated Direct Current Triboelectric Nanogenerators Coupled with Charge Pump and Electric Field Enhancing Effect Enabling Improved Output Performance

The coupled-motion enhanced wireless signal transmission with long distance based on Maxwell’s displacement current

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