Electrohydrodynamic Direct-Writing Micropatterns with Assisted Airflow

被引:17
作者
Jiang, Jiaxin [1 ]
Wang, Xiang [2 ]
Li, Wenwang [2 ]
Liu, Juan [1 ]
Liu, Yifang [1 ]
Zheng, Gaofeng [1 ]
机构
[1] Xiamen Univ, Dept Instrumental & Elect Engn, Xiamen 361102, Peoples R China
[2] Xiamen Univ Technol, Sch Mech & Automot Engn, Xiamen 361024, Peoples R China
基金
中国国家自然科学基金;
关键词
electrohydrodynamic direct-writing; assisted airflow; jet stability; deposition accuracy; FABRICATION; NANOFIBERS;
D O I
10.3390/mi9090456
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
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.
引用
收藏
页数:8
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