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Experimental Qualification of the Process of Electrostatic Spray Deposition

1
Department of Printed Electronics, Korea Institute of Machinery and Materials(KIMM), 156 Gajeongbuk-ro, Yuseong-gu, Daejeon 34103, Korea
2
Department of Mechatronics Engineering, Jeju National University, 102 Jeiudaehak-Ro, Jeju-si, Jeju-do 63243, Korea
3
Department of Nano Mechatronics, Korea University of Science and Technology, 217 Gajeong-Ro, Yuseong-Gu, Daejeon 34113, Korea
*
Authors to whom correspondence should be addressed.
Coatings 2019, 9(5), 294; https://doi.org/10.3390/coatings9050294
Received: 6 March 2019 / Revised: 5 April 2019 / Accepted: 22 April 2019 / Published: 29 April 2019
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Abstract

The electrostatic spray deposition (ESD) is a method of coating thin films based on electrostatic atomization. This paper proposes a method of quantifying the transport of droplets using images of spray patterns measured by the vision system during the ESD process, and verifies by experiment the correlation between the quantified parameters for the dispersion shape of the spray and the thickness of the deposited thin film. When using the proposed method, the ESD process can be optimized simply by monitoring variations of the spray shapes caused by the process conditions. In addition, the proposed method can be applicable to the in-line monitoring method of the variation in the transport of droplets during the ESD process. View Full-Text
Keywords: printed electronics; electro-hydrodynamic (EHD) atomization; electrostatic spray deposition (ESD); coating; thin film; process qualification printed electronics; electro-hydrodynamic (EHD) atomization; electrostatic spray deposition (ESD); coating; thin film; process qualification
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Kang, D.; Kim, J.; Kim, I.; Choi, K.-H.; Lee, T.-M. Experimental Qualification of the Process of Electrostatic Spray Deposition. Coatings 2019, 9, 294.

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