Individually Dispersed Nanoparticle Ink for Film Formation using Ink-jet
Abstract:Individually dispersed Au, Ag, Cu, Pd and ITO nanoparticle inks are formed by using the modified gas evaporation method (gas condensation) where formed particles are covered with an organic surfactant just after their formation. The particles formed by the gas evaporation method are alkaline and sulfur impurity free and have a narrow size distribution. The average diameters of these particles are less than 10 nm and the particles are stably dispersed in Toluene or Tetradecane or Decalin with a solid content of 70wt% for Au, 60wt% for Ag and Cu, 50wt% for Pd and 40wt% for ITO respectively. These nanoparticle inks are suitable for ink-jet printing. Ink-jet printing using nanoparticle ink is expected to substitute patterning processes using sputtering and photolithography. An Ag nanoparticle ink film(low temp.curing type) which is heat treated at 150C for 2hr with a thickness of 300nm has a specific electric resistance of 6μΩcm. An ITO nanoparticle ink film which is heat treated at 230C for 70 min with a thickness of 160 nm has a specific electric resistance of 0.02 Ocm and transparency of 95% at 550nm.
Document Type: Research Article
Publication date: January 1, 2005
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
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