Advances in Engineering Advances in Engineering features breaking research judged by Advances in Engineering advisory team to be of key importance in the Engineering field. Papers are selected from over 10,000 published each week from most peer reviewed journals.
Appl. Phys. Lett. 103, 133506 (2013)
Sukhan Lee, Kichul An, Sanguk Son, Jaeyong Choi.
College of Information and Communication Engineering, Sungkyunkwan University, 300 CheonCheon-dong, JangAn-Gu, Suwon, Gyeonggi-do 440-746, South Korea.
Abstract
During electro-hydrodynamic printing, part of discharged jets may be broken into tiny satellites/sprays, making patterns scattered. This paper presents a method of suppressing these satellites/sprays based on a ring-shaped gate electrode placed in between nozzle and substrate. We discover, by simulation and experimentation, that the maximum satellite/spray suppression can be achieved when the diameter of gate hole and the distance from nozzle to gate are, respectively, about 5, and 2.5 times the outer diameter of nozzle and when the gate voltage applied has a waveform of a negative and positive pulse pair mixed with a fixed gate bias.
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