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HomeAuthorsChoi J.

Authors: Choi J.

Formation and Modeling of Droplet Ejection for Electrohydrodynamic Inkjet Printing

Choi J., Lee S., Son S.U., Sungkyunkwan University, KR
EHD(Electrohydrodynamic) inkjet printing based on electrospray and EHD discharging for tiny droplet/jet is known to be able to generate higher resolution and higher aspect ratio of patterns than the conventional inkjet printing(Lee, 2014). EHD inkjet [...]

Electrical characteristics of individual FeNiCo-Au core-shell nanowires integrated into microelectrodes on plastic substrate

Beheshti M., Geng X., Choi J., Podlaha-Murphy E., Park S., Louisiana State University, US
Synthesis, characterization and integration of single metallic nanowires with enhanced electrical and mechanical properties into plastic substrate is a vital task for the development of transparent/flexible electronics as well as nanosensors. Among the metallic nanowires, [...]

Fishbone Pattern Phenomena on a Non-Conductive Substrate in Electrohydrodynamic Discharging

Son S., Lee S., Choi J., Haque S., Sungkyunkwan University, KR
The intense electric field concentrated on the meniscus at a nozzle orifice is able to trigger the electro-hydrodynamic (EHD) discharging of tiny droplets or jets [1-2]. The electric field distribution along the pathway from the [...]

Repeated Duplication in EHD Line Patterning on a Non-Conductive Substrate Based on Controlling the Polarity of Applied Voltages

Son S., Lee S., Choi J., Sungkyunkwan University, KR
This paper addresses the EHD printing of a high aspect ratio of metal lines as a means of forming a high conductivity of metal lines. As stated earlier, EHD printing is advantageous over conventional inkjet [...]

Scalable Nanopatterning using Roll-based Jet and Flash Imprint Lithography

Ahn S., Ganapathisubramanian M., Miller M., Yang J., Choi J., Menezes M., Xu F., Hellebrekers P., LaBrake D., Resnick D.J., Sreenivasan S.V., Molecular Imprints, Inc, US
Large area roll-to-roll manufacturing on flexible substrates is ubiquitous for applications such as paper and plastic processing. It combines the benefits of high speed and inexpensive substrates to deliver a commodity product at low cost. [...]

Uncoil long DNA molecules in nanoposts array

Wu J., Shao G., Choi J., Uba F.I., Soper S.A., Park S., Louisiana State Univ., US
A nanoposts array was fabricated on a PMMA based nanofluidic chip by nanoimprinting lithography. The electrophoresis of Lambda and T4 DNA in the nanoposts was studied. A periodical stretching and recoiling motion was observed. Each [...]

FineMetalLine Patterning on Hydrophilic Non-Conductive SubstratesBased on EHD Printing withLaser Sintering

Son S., Lee S., Kim Y.J., An K., Choi J., Sungkyunkwan University, KR
In this paper, we report the successful EHD printing and laser sintering of a 5 um width of metal line patterns, with the line thickness of over 340 nm, on a hydrophilic non-conductive glass substrate [...]

High Aspect Ratio EHD Printing with High Viscosity Ink Ejection

Choi J., Lee S., Kim Y.J., Son S.U., An K.C., Sungkyunkwan University, KR
EHD (Electro-hydro-dynamics) printing technology, one of the printing technologies based on EHD discharging theory, can be patterning of high resolution and high aspect ratio compared to conventional inkjet printing systems. We have been investigating to [...]

A Characteristic Analysis of Bio-ethanol produced on Fruit wastes for Direct Ethanol Fuel Cell(DEFC)

Kim H., Lee N., Cha I., Choi J., Center for Organic Agrifood industrialization, KR
This Study is aimed to produce bio-ethanol based on the fruit wastes and optimize the bio-ethanol production for a direct ethanol fuel cell(DEFC). Fruit wastes such as pear, apple, persimmon were used in the conditions [...]

A Characteristic Analysis of Bio-ethanol produced on Fruit wastes for Direct Ethanol Fuel Cell (DEFC)

Kim H., Lee N., Cha I., Choi J., Center for Organic Agrifood industrialization, KR
This Study is aimed to produce bio-ethanol based on the fruit wastes and optimize the bio-ethanol production for a direct ethanol fuel cell(DEFC). Fruit wastes such as pear, apple, persimmon were used in the conditions [...]

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