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|Title: ||Dramatic Enhancement of the Emission Current Density from Carbon Nanotube Based Nanosize Tips with Extremely Low Onset Fields|
|Authors: ||HAZRA, KS|
|Issue Date: ||2009|
|Publisher: ||AMER CHEMICAL SOC|
|Citation: ||ACS NANO, 3(9), 2617-2622|
|Abstract: ||Nanostructures based on multiwalled carbon nanotubes (MWNTs) are fabricated using plasma of the mixture of hydrogen and nitrogen gases. The plasma-sharpened tips of nanotubes contain only a few tubes at the apex of the structure and lead to the dramatic enhancement in the emission current density by a factor >10(6) with the onset field as low as 0.16 V/mu m. We propose that the nature of the tunneling barrier changes significantly for a nanosize tip at very high local electric field and may lead to the saturation in the emission current density.|
|Appears in Collections:||Article|
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