Field emission devices made with laser and/or plasma treated carbon nanotube mats, films or inks
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United States of America Patent
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Feb 1, 2011
Grant Date -
Apr 24, 2008
app pub date -
Aug 20, 2007
filing date -
Jun 14, 2001
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Expired
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Abstract
Field emission devices comprising carbon nanotube mats which have been treated with laser or plasma are provided. Mats are formed from carbon nanotubes, also known as carbon fibrils, which are vermicular carbon deposits having diameters of less than about one micron. The carbon nanotube mats are then subjected to laser or plasma treatment. The treated carbon nanotube mat results in improved field emission performance as either a field emission cathode or as part of a field emission device.
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