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Park, Jang-Ung
Flexible Nano-electronics & Biotechnology Lab
Research Interests
  • Wireless wearable electronics, flexible electronics, printed electronics, nano-bio interfaces

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Nanoscale, Electrified Liquid Jets for High-Resolution Printing of Charge

Cited 46 times inthomson ciCited 45 times inthomson ci
Title
Nanoscale, Electrified Liquid Jets for High-Resolution Printing of Charge
Author
Park, Jang-UngPark, Jang-UngLee, SangkyuUnarunotai, SakulsukSun, YugangDunham, SimonSong, TaeseupFerreira, Placid M.Alleyene, Andrew G.Paik, UngyuRogers, John A.
Keywords
Charge printing; Electrohydrodynamics; Electrostatic doping; Jet printing; Semiconductor nanomaterials
Issue Date
2010-02
Publisher
AMER CHEMICAL SOC
Citation
NANO LETTERS, v.10, no.2, pp.584 - 591
Abstract
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.
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DOI
10.1021/nl903495f
ISSN
1530-6984
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MSE_Journal Papers
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