Effects of pulsing frequency on characteristics of electrohydrodynamic inkjet using micro-Al and nano-Ag particles

Min Wook Lee, Seongpil An, Na Young Kim, Ju Hyeoung Seo, Joo Youl Huh, Ho Young Kim, Sam S. Yoon

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


Characteristics of electrohydrodynamic inkjet were examined upon varying the applied voltage and frequency as well as the base-fluid. Low-cost inks are sought and micro-aluminum particle suspensions are candidates. Inclusion of large particles engendered satellite droplets and hence degraded print quality. However, the formation of satellite droplets can be prevented by increasing fluid's viscosity. Droplet sizes were measured as functions of the frequency; the higher the frequency, the smaller the droplet size. The low-cost inks with aluminum particles yielded reasonable performance on comparison with the expensive commercial ink comprised of silver nano-particles in case of printing dots that are a few hundred microns in size.

Original languageEnglish
Pages (from-to)103-110
Number of pages8
JournalExperimental Thermal and Fluid Science
Publication statusPublished - 2013 Apr

Bibliographical note

Funding Information:
This study was supported by a grant from the cooperative R&D Program (B551179-08-03-00) funded by the Korea Research Council Industrial Science and Technology, Republic of Korea. This research was also supported by the Converging Research Center Program through the Ministry of Education, Science and Technology (2010K000969) and NRF-2012029433, NRF-2012-0001169, and NRF-2010-0010217.


  • Dot print
  • Electrohydrodynamic inkjet
  • Micro-nano-particle
  • Microdripping

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Nuclear Energy and Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes


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