Carbon nanotube field emitter
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United States of America Patent
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Dec 23, 2014
Issued Date -
N/A
app pub date -
Dec 12, 2012
filing date -
Jul 26, 2012
priority date (Note) -
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Abstract
A carbon nanotube field emitter is disclosed. The carbon nanotube field emitter includes an emission portion and a supporting portion. The emission portion and the supporting portion are configured as one piece to form a roll structure. The emission portion includes a first rolled carbon nanotube layer, which includes a number of carbon nanotubes. The supporting portion includes a rolled composite layer, which includes at least one second rolled carbon nanotube layer and a rolled metal layer stacked with each other. Another carbon nanotube field emitter with a number of separated emission tips on the emission portion is also disclosed.
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