Carbon nanotube for electron emission source and manufacturing method therefor
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United States of America Patent
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Issued Date -
Jul 31, 2003
app pub date -
Oct 18, 2002
filing date -
Oct 19, 2001
priority date (Note) -
Abandoned
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Abstract
In a carbon nanotube for an electron emission source, the carbon nanotube has a cylindrical shape formed from a plurality of graphite layers. The graphite layer is made of a six-membered ring of carbon. The outer diameter of the cylinder is 0.6 to 100 nm. The diameter of a hollow portion formed along the axis of the cylinder is 0.1 to 0.9 times the outer diameter of the cylinder. The hollow portion has an open distal end portion.
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