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Carbon nanotubes have been grown on a polished copper substrate by thermal chemical vapor deposition (CVD). Nickel film is deposited on the metallic substrate as catalyst and the reactant gas is acetylene. Efficient field emission of CNTs emitters (Emission area is about 3.14 mm2) is observed from I-V and F-N curves. Stable emission current with the density of more than 20mA was got at the electric...
Carbon nanotubes (CNTs) have been proposed for applications in microelectronic applications, especially for electrical interconnects and nanodevices, due to their excellent electrical, thermal and mechanical properties. Usually, the CNTs produced by arcing, laser ablation or chemical vapor deposition (CVD) are inevitably close-ended. Due to the weak coupling of the individual walls and close ends,...
Field emission from vertically aligned free-standing copper nanowires (CuNWs) is reported. The CuNWs were grown by chemical vapor deposition on various substrates without using templates, catalysts or lithographic processes. The nanowires exhibited excellent field emission characteristics that are comparable to carbon nanotubes and other nanowires, and are substantially superior to those CuNWs prepared...
This paper reports the development and the operation of field emitters with low turn on electric field based on carbon fibres. Field emitters of vertical carbon fibres on silicon substrate were fabricated by the catalyst chemical vapor deposition. The diameter of the fibres is about 3~4 mum and the height is larger than 1 mm. After one aging process of 150 minutes, field emission measurements of carbon...
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