alexa Field Emission and Radial Distribution Function Studies of Fractal-like Amorphous Carbon Nanotips.
Microbiology

Microbiology

Journal of Antivirals & Antiretrovirals

Author(s): Sol F, BiaggiLabiosa A, Fonseca LF, Resto O, LebrnColn M,

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Abstract The short-range order of individual fractal-like amorphous carbon nanotips was investigated by means of energy-filtered electron diffraction in a transmission electron microscope (TEM). The nanostructures were grown in porous silicon substrates in situ within the TEM by the electron beam-induced deposition method. The structure factor S(k) and the reduced radial distribution function G(r) were calculated. From these calculations a bond angle of 124 degrees was obtained which suggests a distorted graphitic structure. Field emission was obtained from individual nanostructures using two micromanipulators with sub-nanometer positioning resolution. A theoretical three-stage model that accounts for the geometry of the nanostructures provides a value for the field enhancement factor close to the one obtained experimentally from the Fowler-Nordheim law.
This article was published in Nanoscale Res Lett and referenced in Journal of Antivirals & Antiretrovirals

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