2018/12/13 by Wooik Jung, Yoon-ho Jung, Jung, Wooik +11
Engineering · #Applied Physics (physics.app-ph) #Electrohydrodynamics and Fluid Dynamics #Electrowetting and Microfluidic Technologies #FOS: Physical sciences #Microfluidic and Bio-sensing Technologies
paper · pdf · doi:10.48550/arxiv.1812.05230
openalex publication_date 2018/12/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A powerful and flexible method of 3D nano-printing, based on focusing charged aerosol, has been developed. The self-consistent electric field configuration, created with a holey floating mask and used as the scaffold for printing structures, has no restriction as to sizes down to nano-scale. The electric field line is used as a writing tool. Broad material independence opens the way for producing hybrid structures that are essential for electronic devices. The method contains three modes which are complementary: controlled tip-directed 3D-growth printing, the writing mode (that can also produce 3D structures in repeating passages), and the stencil mode that produces wall-like structures of various shapes. Manipulating them gives freedom to manufacture complex 3D designs that we report. The desired morphology of the grown structures is controlled according to a simple phenomenological theory that helps organize the 2D stage motion and the 3D printing process to compete with the 3D printing provided by laser techniques in polymer based material.