Nanoscale, electrified liquid jets for high-resolution printing of charge

Jang Ung Park, Sangkyu Lee, Sakulsuk Unarunotai, Yugang Sun, Simon Dunham, Taeseup Song, Placid M. Ferreira, Andrew G. Alleyene, Ungyu Paik, John A. Rogers

Research output: Contribution to journalArticlepeer-review


Nearly all research in micro- and nanofabrication focuses on the formation of solid structures of materials that perform some mechanical, electrical, optical, or related function. Fabricating patterns of charges, by contrast, is a much less well explored area that is of separate and growing Interesting because the associated electric fields can be exploited to control the behavior of nanoscale electronic and mechanical devices, guide the assembly of nanomaterials. or modulate the properties of biological systems. This paper describes a versatile technique that uses fine, electrified liquid jets formed by electrohydrodynamics at micro- and nanoscale nozzles to print complex patterns of both positive and negative charges, with resolution that can extend into the submicrometer and nanometer regime. The reported results establish the basic aspects of this process and demonstrate the capabilities through printed patterns with diverse geometries and charge configurations in a variety of liquid inks, including suspensions of nanoparticles and nanowires. The use of printed charge to control the properties of silicon nanomembrane transistors provides an application example.

Original languageEnglish (US)
Pages (from-to)584-591
Number of pages8
JournalNano letters
Issue number2
StatePublished - Feb 10 2010


  • Charge printing
  • Electrohydrodynamics
  • Electrostatic doping
  • Jet printing
  • Semiconductor nanomaterials

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Mechanical Engineering


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