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Planar and Three-Dimensional Printing of Conductive Inks
Published on: December 9, 2011
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Three-dimensional surface printing method for interconnecting electrodes on opposite sides of substrates
Md Khalilur Rahman1,2, Seong-Jun Kim3, Thanh Huy Phung4
1Department of Electronic Materials and Devices Engineering, Soonchunhyang University, 22, Soonchunhyang-ro, Asan City, Chungnam, 31538, South Korea.
Scientific Reports
|October 30, 2020
Summary
This study introduces a novel near-field electrospinning (NFES) method for precise 30 μm conductive ink printing on 3D surfaces. The technique overcomes challenges like ink flow and edge connections, enabling advanced display applications.
Area of Science:
- Materials Science
- Nanotechnology
- Electrical Engineering
Background:
- Direct printing methods are expanding to non-flat surfaces.
- Printing on 3D objects faces challenges like ink flow and edge connectivity.
Purpose of the Study:
- To develop an effective method for printing fine patterns on non-flat, 3D surfaces with sharp edges.
- To address limitations of current printing techniques for complex geometries.
Main Methods:
- Utilized near-field electrospinning (NFES) to create a deflectable and stretchable conductive ink jet stream.
- Incorporated a polymer into the ink to maintain jet stream integrity over sharp edges.
Main Results:
- Successfully printed fine patterns (approximately 30 μm) on three different faces with sharp edges.
- Demonstrated effective printing on 'Π' shaped glass surfaces, achieving an average resistance of 0.84 Ω over 1.2 mm printed length.
Conclusions:
- The NFES method provides a viable solution for printing conductive patterns on complex 3D surfaces.
- The technique is suitable for industrial applications, particularly in advanced display manufacturing requiring interconnections on multi-faceted substrates.
