Field emission cathode and method for manufacturing the same
AssigneeTatung Co., Ltd.
InventorsHong-Ming LIN, Cheng-Han Chen, Yu-Hang Peng, Jyi-Tsong Lo, Tsuey-May Yin
Life of this patent
Estimating the term…
Abstract
A field emission cathode and a method for manufacturing the same are disclosed. In the present invention, the carbon nanotube is coated with an amorphous coating material so that the above-mentioned field emission cathode resists oxidization in a high electrical field and the structure thereof can be protected. Additionally, the field emission cathode can exhibit field emission performance in a low electrical field, and generate stable current as the electrical field increases so that the efficiency and stability of the field emission current can be enhanced.
Claims20
A field emission cathode comprising:
- a carbon nanotube;
- and
- an amorphous coating material formed and attached on a surface of the carbon nanotube.
A method for manufacturing a field emission cathode comprising:
- thoroughly mixing a precursor and a carbon nanotube to form a first mixture;
- and
- heating the first mixture so as to produce an amorphous coating material on a surface of the carbon nanotube.
Dependencies are inferred from the claim text.