Effects of the concentration of indium-tin-oxide (ITO) ink on the characteristics of directly-printed ITO thin films

Jong Woong Kim, Jangwoo Choi, Sung Jei Hong, Jeong In Han, Young Sung Kim

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Indium tin oxide (ITO) is widely used in nearly all types of display technologies due to its superior physical properties, such as environmental stability, relatively low electrical resistivity and high transparency to visible light. Here, fine ITO nanoparticles were successfully manufactured by applying a low-temperature synthesis method. Then, we formulated ITO inks containing 10, 20, and 30 wt% of ITO nanoparticles for inkjet printing to investigate the effects of ITO concentration on the electrical and the optical characteristics of the printed film. As a result, the ITO nanoparticles heated at 300 °C showed peak characteristics of an ITO structure with good crystallinity without any impurity phase. The electrical conductivity of the ITO film increased while the optical transmittance decreased with increasing ITO concentration in the ink.

Original languageEnglish
Pages (from-to)1794-1798
Number of pages5
JournalJournal of the Korean Physical Society
Volume57
Issue number61
DOIs
StatePublished - Dec 2010

Keywords

  • Electrical resistance
  • Indium tin oxide
  • Inkjet printing
  • Nanoparticle
  • Optical transmittance

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