Journal
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Volume 104, Issue 4, Pages 1113-1120Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00339-011-6386-0
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Funding
- Ministry of Knowledge Economy, South Korea
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In this paper, multi-nozzle electrohydrodynamic (EHD) inkjet printing of a colloidal solution containing silver nanoparticles in a fully controlled fashion is reported. For minimizing interaction, i.e. cross-talk, between neighboring jets, the distance between the nozzles was optimized numerically by investigating the magnitude of the electric field strength around the tip of each nozzle. A multi-nozzle EHD inkjet printing head consisting of three nozzles was fabricated and successfully tested by simultaneously printing electrically conductive lines of a colloidal solution containing silver nanoparticles onto a glass substrate. The printed results show electrical resistivity of 5.05x10(-8) Omega m, which is almost three times larger than that of bulk silver. These conductive microtracks demonstrate the feasibility of the multi-nozzle EHD inkjet printing process for industrial fabrication of microelectronic devices.
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