Publication Date:
2019-07-13
Description:
We have investigated the field emission behavior of lithographically patterned bundles of multiwalled carbon nanotubes arranged in a variety of array geometries. Such arrays of nanotube bundles are found to perform significantly better in field emission than arrays of isolated nanotubes or dense, continuous mats of nanotubes, with the field emission performance depending on the bundle diameter and inter-bundle spacing. Arrays of 2-micrometers diameter nanotube bundles spaced 5 micrometers apart (edge-to-edge spacing) produced the largest emission densities, routinely giving 1.5 to 1.8 A/cm(sup 2) at approximately 4 V/micrometer electric field, and greater than 6 A/cm(sup 2) at 20 V/micrometers.
Keywords:
Solid-State Physics
Type:
Paper Number NANO2004-46052
,
ASME Integrated Nanosystems Conference; Sep 22, 2004 - Sep 24, 2004; Pasadena, CA; United States
Format:
text
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