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Field Emission Properties of Multiwalled Carbon Nanotubes Synthesized by Pin-to-Plate Type Atmospheric Pressure Plasma Enhanced Chemical Vapor Deposition  

Park Jae-Beom (Dept. of Materials Sci. & Eng., Sungkyunkwan Univ.)
Kyung Se-Jin (Dept. of Materials Sci. & Eng., Sungkyunkwan Univ.)
Yeom Geun-Young (Dept. of Materials Sci. & Eng., Sungkyunkwan Univ.)
Publication Information
Journal of the Korean Vacuum Society / v.15, no.4, 2006 , pp. 374-379 More about this Journal
Abstract
In this study, carbon nanotubes (CNTs) were grown on glass substrates coated with Ni/Cr by an atmospheric pressure plasma enhanced chemical vapor deposition(AP-PECVD) and their structural and electrical characteristics were investigated as a possible application to the field emitter of field emission display (FED) devices. The substrate temperature ($400{\sim}500^{\circ}C$) were varied and the grown CNTs were multi wall CNTs (at $500^{\circ}C$, 15 - 20 layers of graphene sheets, distance of each layer : 0.3nm, inner diameter: 10 - 15nm, outer diameter: 30 - 40nm). The ratio of defective carbon peak to graphite carbon peak of the CNTs grown at $500^{\circ}C$ (C measured by fourier transform(FT)-Raman was 0.772 $I_D / I_G$ ratio. When field emission properties were measured, the turn-on field was $2.92V/{\mu}m$ and the emission field at $1mA/cm^2$ was $5.325V /{\mu}m$.
Keywords
Carbon nanotubes; Atmospheric pressure plasma; Field emission;
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