H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 1/14 (2006.01) H01J 3/02 (2006.01) H01J 9/04 (2006.01) H01J 29/04 (2006.01) H01J 29/50 (2006.01)
Patent
CA 2531628
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.
L'invention concerne des dispositifs d'émission de champ comprenant des mats de nanofibres de carbone traités au laser ou au plasma. Lesdits mats sont formés à partir de nanofibres de carbone également connues sous le nom de fibrilles de carbone, qui sont des dépôts de carbone vermiculaire présentant des diamètres inférieurs à environ un micron. Ces mats de nanofibres de carbone sont ensuite soumis à un traitement au laser ou au plasma. Les mats de nanofibres de carbone traités permettent d'améliorer la performance d'émission de champ soit à l'aide d'une cathode d'émission de champ soit à l'aide d'une partie de dispositif d'émission de champ.
Fischer Alan B.
Ngaw Lein
Niu Chunming
Takai Mikio
Hyperion Catalysis International Inc.
Smart & Biggar
LandOfFree
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