title: High-Resolution Printing of 3D Structures Using an Electrohydrodynamic Inkjet with Multiple Functional Inks.
abstract: Electrohydrodynamic-inkjet-printed high-resolution complex 3D structures with multiple functional inks are demonstrated. Printed 3D structures can have a variety of fine patterns, such as vertical or helix-shaped pillars and straight or rounded walls, with high aspect ratios (greater than ≈50) and narrow diameters (≈0.7 μm). Furthermore, the formation of freestanding, bridge-like Ag wire structures on plastic substrates suggests substantial potentials as high-precision, flexible 3D interconnects.
authors.affiliation: School of Materials Science and Engineering, Wearable Electronics Research Group, Low-Dimensional Carbon Materials Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, Republic of Korea.
authors.forename: Byeong Wan
authors.initials: BW
authors.lastname: An
authors.affiliation: School of Materials Science and Engineering, Wearable Electronics Research Group, Low-Dimensional Carbon Materials Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, Republic of Korea.
authors.forename: Kukjoo
authors.initials: K
authors.lastname: Kim
authors.affiliation: School of Materials Science and Engineering, Wearable Electronics Research Group, Low-Dimensional Carbon Materials Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, Republic of Korea.
authors.forename: Heejoo
authors.initials: H
authors.lastname: Lee
authors.affiliation: School of Materials Science and Engineering, Wearable Electronics Research Group, Low-Dimensional Carbon Materials Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, Republic of Korea.
authors.forename: So-Yun
authors.initials: SY
authors.lastname: Kim
authors.affiliation: School of Materials Science and Engineering, Wearable Electronics Research Group, Low-Dimensional Carbon Materials Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, Republic of Korea.
authors.forename: Yulhui
authors.initials: Y
authors.lastname: Shim
authors.affiliation: Display Research Center, Samsung Display, Yongin-city, 446-711, Republic of Korea.
authors.forename: Dae-Young
authors.initials: DY
authors.lastname: Lee
authors.affiliation: Department of Ultra Precision Machines and Systems, Korea Institute of Machinery and Materials (KIMM), Daejeon, 305-343, Republic of Korea.
authors.forename: Jun Yeob
authors.initials: JY
authors.lastname: Song
authors.affiliation: School of Materials Science and Engineering, Wearable Electronics Research Group, Low-Dimensional Carbon Materials Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, Republic of Korea.
authors.forename: Jang-Ung
authors.initials: JU
authors.lastname: Park
keywords: 3D printing; electrohydrodynamics; flexible electronics; inkjet; printed electronics