Carbon Nano-structured Films on Chrome Electrodes with Excellent Electron Emission Characteristics

  • Koh, Ken-Ha (Department of Physics, Ajou University) ;
  • Park, Kyung-Ho (Department of Molecular Science and Technology, Ajou University) ;
  • Choi, Seung-Ho (Department of Molecular Science and Technology, Ajou University) ;
  • Lee, Kyung-Mun (Department of Molecular Science and Technology, Ajou University) ;
  • Oh, Soo-Ghee (Department of Molecular Science and Technology, Ajou University) ;
  • Lee, Soon-Il (Department of Molecular Science and Technology, Ajou University)
  • Published : 2000.01.13

Abstract

We report the fabrication of carbon nanostureture films with excellent electron-emission characteristics on chrome electrodes using a pre-deposited transition metal catalyst layer. The emission current densities of 1 ${\mu}A/cm^2$ and 1 $mA/cm^2$ were measured at the electric field of 2.5 and 4.8 $V/{\mu}m$, respectively, and the current fluctuation of less than 2.5% was observed at the average current density 211 ${\mu}A/cm^2$ for the measurement duration of 20 minutes. We counted more than ${\sim}10^4$ emission sites per $cm^2$ from the emission images, and also noticed good mechanical stability. Moreover, we were able to fabricate good electron-emitting carbon films on chrome electrodes on Corning glass substrates at the nominal temperature below $650^{\circ}C$.

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