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High-resolution electrohydrodynamic printing of silver nanoparticle ink via commercial hypodermic needles

Title
High-resolution electrohydrodynamic printing of silver nanoparticle ink via commercial hypodermic needles
Author
오제훈
Keywords
SUBSTRATE; LINES
Issue Date
2015-01
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v. 106, Article no. 014103
Abstract
The effect of the needle shape on electrohydrodynamic (EHD) printing was investigated by comparing flat outlet needles and hypodermic needles. Line fabrication was performed to confirm the tendency of jetting stability and the printed line width with various driving voltage and stage speed by using Ag nanoparticle ink as a jetting solution on a hydrophobic surface. We verified that the hypodermic needle greatly improves the resolution in EHD printing. The ink slips down the inner wall of the hypodermic needle, and a very small meniscus is generated at the tip of the needle. Due to this phenomenon, high-resolution printing can be accomplished. The narrowest line that was fabricated using a hypodermic needle has a line width of 0.7 mu m, and it is smaller than 1% of the needle inner diameter. (C) 2015 AIP Publishing LLC.
URI
http://aip.scitation.org/doi/abs/10.1063/1.4905387https://repository.hanyang.ac.kr/handle/20.500.11754/100614
ISSN
0003-6951; 1077-3118
DOI
10.1063/1.4905387
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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