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Nib-Assisted Coaxial Electrohydrodynamic Jet Printing for Nanowires Deposition
Shiwei Shi1, Zeshan Abbas1, Xiangyu Zhao1
1Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian 116024, China.
Nanomaterials (Basel, Switzerland)
|May 13, 2023
Summary
Researchers developed a nib-assisted coaxial electrohydrodynamic printing method to precisely fabricate high-quality nanowires. This technique enhances control over fluid dynamics, enabling the creation of nanoscale structures for micro/nano devices.
Area of Science:
- Materials Science
- Nanotechnology
- Engineering
Background:
- Precise control over nanowire size and morphology is critical for micro/nano device performance.
- Existing fabrication methods may lack the resolution or control needed for advanced applications.
Purpose of the Study:
- To introduce and validate a novel nib-assistance coaxial electrohydrodynamic (CEHD) printing technology.
- To demonstrate the capability of this technique for fabricating high-quality nanowires with controlled dimensions.
Main Methods:
- Development of a nib-assistance CEHD printing setup.
- Utilizing microparticles to visualize and analyze fluid flow within the coaxial jet.
- Optimization of experimental parameters to control nanowire formation and minimize internal reflux.
Main Results:
- Observed internal fluid reflux in the coaxial jet for the first time.
- Successfully printed nanowires with a minimum diameter of 70 nm.
- Created aligned nanowire structures with diameters significantly smaller than the nozzle inner diameter.
Conclusions:
- The nib-assisted CEHD printing technique offers a straightforward and effective method for fabricating high-quality nanowires.
- This technology shows significant potential for applications in nanosystems, such as nanoelectromechanical systems (NEMS).
