Computational Study of Drop-on-Demand Coaxial Electrohydrodynamic Jet and Printing Microdroplets

Zeshan Abbas; Dazhi Wang; Liangkun Lu; Yikang Li; Changchang Pu; Xiangji Chen; Pengfei Xu; Shiwen Liang; Lingjie Kong; Bin Tang

doi:10.3390/mi14040812

Micromachines (Apr 2023)

Computational Study of Drop-on-Demand Coaxial Electrohydrodynamic Jet and Printing Microdroplets

Zeshan Abbas,
Dazhi Wang,
Liangkun Lu,
Yikang Li,
Changchang Pu,
Xiangji Chen,
Pengfei Xu,
Shiwen Liang,
Lingjie Kong,
Bin Tang

Affiliations

Zeshan Abbas: Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
Dazhi Wang: Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
Liangkun Lu: Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
Yikang Li: Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
Changchang Pu: Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
Xiangji Chen: Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
Pengfei Xu: Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
Shiwen Liang: Ningbo Institute of Dalian University of Technology, Ningbo 315000, China
Lingjie Kong: Ningbo Institute of Dalian University of Technology, Ningbo 315000, China
Bin Tang: Institute of Electronic Engineering, CAEP, Mianyang 621900, China

DOI: https://doi.org/10.3390/mi14040812
Journal volume & issue: Vol. 14, no. 4
p. 812

Abstract

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Currently, coaxial electrohydrodynamic jet (CE-Jet) printing is used as a promising technique for the alternative fabrication of drop-on-demand micro- and nanoscale structures without using a template. Therefore, this paper presents numerical simulation of the DoD CE-Jet process based on a phase field model. Titanium lead zirconate (PZT) and silicone oil were used to verify the numerical simulation and the experiments. The optimized working parameters (i.e., inner liquid flow velocity 150 m/s, pulse voltage 8.0 kV, external fluid velocity 250 m/s, print height 16 cm) were used to control the stability of the CE-Jet, avoiding the bulging effect during experimental study. Consequently, different sized microdroplets with a minimum diameter of ~5.5 µm were directly printed after the removal of the outer solution. The model is considered the easiest to implement and is powerful for the application of flexible printed electronics in advanced manufacturing technology.

Published in Micromachines

ISSN: 2072-666X (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Mechanical engineering and machinery
Website: https://www.mdpi.com/journal/micromachines

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