2007 NSTI Nanotechnology Conference and Trade Show - Nanotech 2007 - 10th Annual

Area Effect of Patterned CNTs Bundle on Field Emission Characteristics

T.W. Weng and K-Y Lee
National Taiwan University of Science and Technology, TW

Keywords:
carbon nanotube bundle, field electron emission, area effect

Abstract:
We show the relationship between the property of field electron emission, the area of patterned CNTs bundle, and the density of CNTs bundle. The current density can reach as high as 20 mA/cm2 at about 1.40 V/um. We define the threshold electric field as that which corresponds to the current density of 1.0 mA/cm2. It shows that the lowest threshold electric field of 0.87 V/um was obtained with the total area percentage of 46% which synthesized with 25 mm of diameter and 10 mm of pitch.

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