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Electrohydrodynamic Direct-Writing Micropatterns with Assisted Airflow

Electrohydrodynamic direct-writing (EDW) is a developing technology for high-resolution printing. How to decrease the line width and improve the deposition accuracy of direct-written patterns has been the key to the promotion for the further application of EDW. In this paper, an airflow-assisted spi...

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Detalles Bibliográficos
Autores principales: Jiang, Jiaxin, Wang, Xiang, Li, Wenwang, Liu, Juan, Liu, Yifang, Zheng, Gaofeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6187393/
https://www.ncbi.nlm.nih.gov/pubmed/30424389
http://dx.doi.org/10.3390/mi9090456
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author Jiang, Jiaxin
Wang, Xiang
Li, Wenwang
Liu, Juan
Liu, Yifang
Zheng, Gaofeng
author_facet Jiang, Jiaxin
Wang, Xiang
Li, Wenwang
Liu, Juan
Liu, Yifang
Zheng, Gaofeng
author_sort Jiang, Jiaxin
collection PubMed
description Electrohydrodynamic direct-writing (EDW) is a developing technology for high-resolution printing. How to decrease the line width and improve the deposition accuracy of direct-written patterns has been the key to the promotion for the further application of EDW. In this paper, an airflow-assisted spinneret for electrohydrodynamic direct-writing was designed. An assisted laminar airflow was introduced to the EDW process, which provided an additional stretching and constraining force on the jet to reduce the surrounding interferences and enhance jet stability. The flow field and the electric field around the spinneret were simulated to direct the structure design of the airflow-assisted spinneret. Then, a series of experiments were conducted, and the results verified the spinneret design and demonstrated a stable ejection of jet in the EDW process. With assisted airflow, the uniformity of printed patterns and the deposition position accuracy of a charged jet can be improved. Complex patterns with positioning errors of less than 5% have been printed and characterized, which provide an effective way to promote the integration of micro/nanosystems.
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spelling pubmed-61873932018-11-01 Electrohydrodynamic Direct-Writing Micropatterns with Assisted Airflow Jiang, Jiaxin Wang, Xiang Li, Wenwang Liu, Juan Liu, Yifang Zheng, Gaofeng Micromachines (Basel) Article Electrohydrodynamic direct-writing (EDW) is a developing technology for high-resolution printing. How to decrease the line width and improve the deposition accuracy of direct-written patterns has been the key to the promotion for the further application of EDW. In this paper, an airflow-assisted spinneret for electrohydrodynamic direct-writing was designed. An assisted laminar airflow was introduced to the EDW process, which provided an additional stretching and constraining force on the jet to reduce the surrounding interferences and enhance jet stability. The flow field and the electric field around the spinneret were simulated to direct the structure design of the airflow-assisted spinneret. Then, a series of experiments were conducted, and the results verified the spinneret design and demonstrated a stable ejection of jet in the EDW process. With assisted airflow, the uniformity of printed patterns and the deposition position accuracy of a charged jet can be improved. Complex patterns with positioning errors of less than 5% have been printed and characterized, which provide an effective way to promote the integration of micro/nanosystems. MDPI 2018-09-11 /pmc/articles/PMC6187393/ /pubmed/30424389 http://dx.doi.org/10.3390/mi9090456 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Jiang, Jiaxin
Wang, Xiang
Li, Wenwang
Liu, Juan
Liu, Yifang
Zheng, Gaofeng
Electrohydrodynamic Direct-Writing Micropatterns with Assisted Airflow
title Electrohydrodynamic Direct-Writing Micropatterns with Assisted Airflow
title_full Electrohydrodynamic Direct-Writing Micropatterns with Assisted Airflow
title_fullStr Electrohydrodynamic Direct-Writing Micropatterns with Assisted Airflow
title_full_unstemmed Electrohydrodynamic Direct-Writing Micropatterns with Assisted Airflow
title_short Electrohydrodynamic Direct-Writing Micropatterns with Assisted Airflow
title_sort electrohydrodynamic direct-writing micropatterns with assisted airflow
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6187393/
https://www.ncbi.nlm.nih.gov/pubmed/30424389
http://dx.doi.org/10.3390/mi9090456
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