한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
권호 표지

Selective Growth of Multi-walled Carbon Nanotubes by Thermal Chemical Vapor Deposition and Their Field Emission Characteristics

  • Jeong, Se-Jeong (Department of Nano Science and Technology, Sejong University) ;
  • Lee, Seung-Hwan (Department of Nano Science and Technology, Sejong University) ;
  • Lee, Nae-Sung (Department of Nano Science and Technology, Sejong University) ;
  • Han, In-Taek (Materials and Devices Research Center, Samsung Advanced Institute of Technology) ;
  • Kim, Ha-Jin (Materials and Devices Research Center, Samsung Advanced Institute of Technology) ;
  • Kim, Jong-Min (Materials and Devices Research Center, Samsung Advanced Institute of Technology)
  • Published : 2005.07.19
Download PDF
⟨ Previous Next ⟩

Abstract

Multi-walled carbon nanotubes (CNTs) grown on catalyst dots by thermal chemical vapor deposition were vertically aligned with a high population density. Such densely populated CNTs showed poor field emission characteristics due to the electrical screening effect. We reduced the number density of CNTs using an adhesive tape treatment. For dotpatterned CNTs, the tape treatment decreased the CNT density by three orders of magnitude, drastically improved the turn-on electric field from 4.8 to $1.8V/{\mu}m$, and changed the emission image from spotty to uniform luminescence. We also report long-term emission stability of dot-patterned CNTs by measuring the emission currents with time at different duty ratios.

Keywords