Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 12, Issue 3, Pages 2380-2386Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2012.5693
Keywords
ZnO Nanoparticles; Ultrasonication; Ink Formulation; Ink-Jet Printing
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Funding
- National Leading Research Laboratory [2011-0028899]
- World Class University [R31-20029]
- Korean government (MEST)
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Zinc oxide (ZnO) nanoparticles were synthesized by ultrasonically-assisted solution process without using any surfactants. The as-synthesized spherical ZnO nanoparticles with diameter of 20 +/- 5 nm possessed crystalline nature with wurtzite hexagonal phase and showed a blue-shifted near bandedge ultra-violet absorption at similar to 340 nm due to quantum confinement effect of ZnO nanoparticles. The as-synthesized ZnO nanoparticles were further formulated as an ink for ink-jet printing application. Jetting and writing of various line patterns on Si and ITO substrates were demonstrated using the as-formulated ZnO ink. UV-treated substrates showed an improvement in the fixation of ink on substrate due to decreased contact angle with controlled surface wettability.
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