In situ fabrication and graphitization of amorphous carbon nanowires and their electrical properties

Article Abstract:

The investigation on in situ fabrication and modification of carbon nanowires (CNWs) by the method of electron beam induced deposition (EBID) of amorphous CNWs (a-CNWs) and controlled current-induced migration and heating of Fe particles through as-fabricated a-CNW to form polycrystalline graphitized CNWs (g-CNWs) is presented. The structures and electrical properties of both a-CNW and g-CNW are characterized in situ inside the transmission electron microscopy (TEM) with the use of a TEM-STM system.

Observations, Transmission electron microscopes, Structure, Electron beams

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Electron field emission characteristics and field evaporation of a single carbon nanotube

Article Abstract:

The study presents a direct observation of the field evaporation process of the carbon nanotube (CNT) and corresponding field emission characteristics during the process. It concluded that the irregular shaped graphite sheets at the tip of the CNT might greatly enhance the field emission characteristics of the CNT when compared with that having an ideal circular edge.

Thermal properties, Field emission cathodes

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Field-effect characteristics and screening in double-walled carbon nanotube field-effect transistors

Article Abstract:

Field-effect transistors (FETs) are fabricated using double-walled carbon nanotubes (DWNCTs), and electrical transport measurements are carried out on 125 DWNCT FETs. Among the devices, 52 were found to show basically semiconducting field-effect characteristics, 44-show metallic characteristics, and 29 neither show pure semiconducting nor metallic characteristics.

Electric properties, Field-effect transistors, Field effect transistors, Carbon compounds

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