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Home
Mixed-dimensional Van Der Waals Heterostructures For Boosting Electricity Generation.

Home
Mixed-dimensional Van Der Waals Heterostructures For Boosting Electricity Generation.

Related Experiment Video

Fabricating van der Waals Heterostructures with Precise Rotational Alignment

Fabricating van der Waals Heterostructures with Precise Rotational Alignment

Published on: July 5, 2019

Mixed-Dimensional van der Waals Heterostructures for Boosting Electricity Generation.

Haoran Kong^1,2, Huiying Yao³, Yuting Li^1,2

¹State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China.

|September 12, 2023

View abstract on PubMed

Summary

This summary is machine-generated.

This study introduces a novel graphene-based hydrovoltaic device using SiC whiskers for enhanced energy harvesting. The developed device efficiently converts environmental energy and powers a self-sufficient desalination system.

Keywords:

electricity generation electrophoretic deposition graphene integrated devices mixed-dimensional van der Waals heterostructures silicon carbide whiskers

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Published on: January 15, 2016

Area of Science:

Materials Science
Renewable Energy
Nanotechnology

Background:

Hydrovoltaic devices offer a promising avenue for renewable energy harvesting, crucial for micro/nano power systems.
Graphene-based hydrovoltaic devices with innovative microstructures are trending, but face challenges in fabrication and performance enhancement.
Existing methods for improving ion/electron redistribution in graphene hydrovoltaics are complex and offer limited control.

Purpose of the Study:

To develop a simplified fabrication process for high-performance graphene-based hydrovoltaic devices.
To enhance the output performance of hydrovoltaic devices through novel material integration.
To demonstrate a practical application of these devices in a self-powered desalination system.

Main Methods:

Utilized electrophoretic deposition (EPD) for SiC whiskers (SiC_w)-assisted graphene transfer.

Fabricated graphene/SiC_w (GS) mesh films with mixed-dimensional van der Waals (vdW) heterostructures.

Designed and integrated hydrovoltaic devices into a self-powered desalination-monitoring system.

Main Results:

Significantly boosted output performance of the graphene/SiC_w hydrovoltaic devices.
Achieved high graphene integrity and prominent negative surface charge via vdW heterostructures.
Successfully demonstrated electricity generation from ionic solutions to power a deionization process.

Conclusions:

The EPD-driven SiC_w-assisted graphene transfer simplifies device fabrication and enhances hydrovoltaic performance.
The developed graphene/SiC_w heterostructures effectively promote ion/electron redistribution for improved energy conversion.
Integrated hydrovoltaic devices offer an efficient strategy for sustainable energy harvesting and utilization, exemplified by the desalination system.