한국정보디스플레이학회:학술대회논문집

한국정보디스플레이학회 (The Korean Infomation Display Society)
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FIELD EMISSION FROM TRIODE FIELD EMITTER WITH PLANAR CARBON-NANOPARTICLE CATHODE

  • Park, Kyung-Ho (Dept. of Molecular Science and Technology, Ajou University, Information Display Research Institute, Ajou University) ;
  • Seo, Woo-Jong (Dept. of Molecular Science and Technology, Ajou University, Information Display Research Institute, Ajou University) ;
  • Lee, Soon-Il (Dept. of Molecular Science and Technology, Ajou University, Information Display Research Institute, Ajou University) ;
  • Koh, Ken-Ha (Dept. of Molecular Science and Technology, Ajou University, Information Display Research Institute, Ajou University)
  • 발행 : 2002.08.21
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초록

Triode field emitters with planar-carbon-nanopaticle (CNP) cathodes were successfully fabricated using the conventional photolithography and the hotfilament chemical vapor deposition. Electron emission from a CNP triode emitter with a 12-${\mu}m$-diameter gate hole started at the gate voltage of 45 V, and the anode current reached the level of ${\sim}120$ nA at the gate voltage of 60 V, respectively. For the quantitative analysis of the Fowler-Nordheim (F-N) type emission from a CNP triode emitter, we carried out 2dimensional numerical calculation of electrostatic potential using the finite element method. As it turned out, a radial variation of electric field was very important to account for the emission from a planar emitting layer. By assuming the graphitic work function of 5 eV for CNPs, we were able to extract a consistent set of F-N parameters, together with the radial position of emitting sites.

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