title: Drop-on-demand printing of carbon black ink by electrohydrodynamic jet printing.
abstract: Electrohydrodynamic (EHD) jet printing is a technique using electric fields to eject inks through nozzle apertures. EHD jet printing is very attractive due to its non-contacting nature and compatibility with diverse materials and substrates. In this research, we have fabricated micron-sized dot arrays and line patterns with carbon black ink on Si wafer substrates using EHD jet printing. The effect of operating conditions such as applied voltage, working distance and stage speed on the size and shape of the jetted patterns and jetting cycles is investigated by using optical microscope, high speed camera and atomic force microscopy (AFM). We have also demonstrated the drop-on-demand feature of the EHD jet printing system by patterning carbon black ink lines with various widths and dot arrays with desired diameters and spacing by controlling the operating conditions.
authors.affiliation: Department of Organic and Nano Engineering, Institute of Nano Science and Technology, Hanyang University, 17 Haengdang-Dong, Seongdong-Gu, Seoul 133-791, Korea.
authors.forename: Sung Yul
authors.initials: SY
authors.lastname: Back
authors.forename: Chi Ho
authors.initials: CH
authors.lastname: Song
authors.forename: Seongil
authors.initials: S
authors.lastname: Yu
authors.forename: Hyoung Jin
authors.initials: HJ
authors.lastname: Lee
authors.forename: Beom Soo
authors.initials: BS
authors.lastname: Kim
authors.forename: Nam Yeo
authors.initials: NY
authors.lastname: Yang
authors.forename: Soo Hoa
authors.initials: SH
authors.lastname: Jeong
authors.forename: Heejoon
authors.initials: H
authors.lastname: Ahn
mesh_terms: D004574:Electromagnetic Fields; D007281:Ink; D008422:Materials Testing; D044085:Microfluidics / Q000379:methods*; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D053260:Soot / Q000138:chemical synthesis*; D014867:Water / Q000737:chemistry
chemical_list: D053260:Soot; D014867:Water