Thermal electron emitter and thermal electron emission device using the same
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United States of America Patent
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Dec 27, 2011
Grant Date -
Oct 15, 2009
app pub date -
Mar 12, 2009
filing date -
Apr 11, 2008
priority date (Note) -
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Abstract
A thermal electron emitter includes at least one carbon nanotube twisted wire and a plurality of electron emission particles mixed with the twisted wire. The carbon nanotube twisted wire comprises a plurality of carbon nanotubes. A work function of the electron emission particles is lower than the work function of the carbon nanotubes. A thermal electron emission device using the thermal electron emitter is also related.
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