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Related Concept Videos

Free Jet01:14

Free Jet

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Free jets describe the flow of liquid exiting a reservoir through an opening into the atmosphere without resistance. The velocity (v) of the liquid jet is derived using Bernoulli's principle and expressed as:
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Capillarity describes the movement of liquid in small spaces without external forces acting on it. The capillarity is driven by surface tension and adhesive interactions between the liquid and surrounding solid surfaces. This effect is often seen in narrow tubes, porous materials, and fine particles.
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High-resolution Patterning Using Two Modes of Electrohydrodynamic Jet: Drop on Demand and Near-field Electrospinning
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Electrohydrodynamic Jet Printing: Introductory Concepts and Considerations.

Nhlakanipho Mkhize1, Harish Bhaskaran1

  • 1Department of Materials University of Oxford Parks Road Oxford OX1 3PH UK.

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|April 11, 2025
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Summary

Electrohydrodynamic (EHD) jet printing offers high-resolution additive manufacturing for electronics. Optimizing ink, printer, and substrate parameters is key to achieving detailed 50 nm prints.

Keywords:
electrohydrodynamic jet printingink propertiesinkjet printing nozzlesprocess parameters for jet printingsubstrate properties for inkjet printing

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Area of Science:

  • Additive Manufacturing
  • Materials Science
  • Nanotechnology

Background:

  • Electrohydrodynamic (EHD) jet printing is an emerging additive manufacturing technique.
  • It is gaining traction for producing electronic devices, sensors, and displays due to its versatility and high resolution.
  • Achieving high resolution (up to 50 nm) requires a deep understanding of operational parameters.

Purpose of the Study:

  • To review the critical factors influencing high-resolution printing using EHD jet printing.
  • To provide insights into optimizing the EHD printing process for consistent and extraordinary results.
  • To identify future development potential in EHD jet printing technology.

Main Methods:

  • Review of literature focusing on EHD jet printing parameters.
  • Analysis of the interplay between ink properties, printer system design, and substrate characteristics.
  • Examination of operational parameters such as nozzle dimensions and applied potential.

Main Results:

  • Ink properties significantly impact print resolution and consistency.
  • Printer system parameters, including nozzle design and voltage, are crucial for fine feature fabrication.
  • Substrate properties and surface interactions play a vital role in achieving high-resolution EHD prints.

Conclusions:

  • Understanding and manipulating ink, printer, and substrate factors are essential for high-resolution EHD printing.
  • EHD jet printing is a promising, affordable technology for advanced manufacturing applications.
  • Further research and development are expected to enhance the capabilities and applications of EHD printing.