Method for making field emission cathode
AssigneesTsinghua University, Hon Hai Precision Industry Co., Ltd.
InventorsBing-Chu Du, Peng Liu, Duan-Liang Zhou, Chun-Hai Zhang, Shou-Shan Fan
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Abstract
The disclosure relates to a method for making field emission cathode. A microchannel plate is provided. The microchannel plate includes a first surface and a second surface opposite to the first surface. The microchannel plate defines a number of holes extending through the microchannel plate from the first surface to the second surface. The plurality of holes are filled with a carbon nanotube slurry. The carbon nanotube slurry is adhered on inner walls of the plurality of holes. The carbon nanotube slurry in the plurality of holes is solidified.
Claims20
A method for making field emission cathode, the method comprising:
- providing a first microchannel plate, wherein the first microchannel plate comprises a first surface and a second surface, opposite to the first surface;
- the first microchannel plate defines a plurality of first holes extending through the first microchannel plate from the first surface to the second surface;
- a diameter of each of the plurality of first holes is in a range from about 10 micrometers to about 40 micrometers;
- and a distance between adjacent first holes is in a range from about 2 micrometers to about 10 micrometers;
- filling the plurality of first holes with a carbon nanotube slurry, wherein the carbon nanotube slurry is adhered on inner walls of the plurality of first holes;
- and
- solidifying the carbon nanotube slurry.
A method for making field emission cathode, the method comprising:
- providing a microchannel plate, wherein the microchannel plate is a free-standing structure and comprises a first surface and a second surface, opposite to the first surface;
- and the microchannel plate defines a plurality of holes extending through the microchannel plate from the first surface to the second surface;
- filling the plurality of holes with a carbon nanotube slurry, wherein the carbon nanotube slurry is completely located in the plurality of holes and adhered on inner walls of the plurality of holes;
- and
- solidifying the carbon nanotube slurry.
Dependencies are inferred from the claim text.