• Preparation of Cu nanoparticles by a pulsed wire evaporation process for conductive ink applications

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    • Keywords

       

      Cu; nanoparticles; nanopowders; electrical conductivity.

    • Abstract

       

      In the present study, Cu colloidal nanoparticles and nanopowders were successfully synthesized by a pulsed wire evaporation process. Cu-based nano-inks were prepared by mixing Cu nanoparticles with acrylic resin and solvent.Cu nanoparticles with a particle size of <20 nm were uniformly dispersed in ethylene glycol. The Cu nanopowders were successfully coated with an organic solvent composed of a hydrocarbon compound. This organic coating effectively inhibited the oxidation of Cu nanopowders. In addition, the stability of dispersion of Cu nanoparticles in the inks was improved by a ball-milling process. The electrical conductivity of the prepared Cu nano-inks was 10–28 $\mu$S cm$^{−1}$ for 20–40 wt% of Cu.

    • Author Affiliations

       

      DONG-JIN LEE1 FAN-LONG JIN2 SOO-JIN PARK3

      1. Nano Technology Inc., Daedeok-Gu, Daejon 306-801, Republic of Korea
      2. Department of Polymer Materials, Jilin Institute of Chemical Technology, Jilin City 132022, People’s Republic of China
      3. Department of Chemistry, Inha University, Nam-Gu, Incheon 402-751, Republic of Korea
    • Dates

       
  • Bulletin of Materials Science | News

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