Composition for forming electron emission source, electron emission source including the composition, method of preparing the electron emission source, and field emission device including the electron emission source
AssigneeSamsung Electronics Co., Ltd.
InventorsYong-chul KIM, In-taek HAN, Ho-suk KANG
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Abstract
An electron emission source includes nano-sized acicular materials and a cracked portion formed in at least one portion of the electron emission source. The acicular materials are exposed between inner walls of the cracked portion. A method for preparing the electron emission source, a field emission device including the electron emission source, and a composition for forming the electron emission source are also provided in the present invention.
Claims25
An electron emission source, comprising:
- an organic residue;
- a cracked portion formed in at least one portion of the electron emission source;
- and,
- nano-sized acicular materials exposed within the cracked portion.
A field emission device, comprising:
- a substrate;
- a first electrode formed on the substrate;
- and
- a plurality of electron emission sources formed on the first electrode, with each electron emission source comprising:
- an organic residue;
- a cracked portion formed in at least one portion of each of the electron emission source;
- and,
- nano-sized acicular materials exposed within the cracked portion.
A method of preparing an electron emission source, the method comprising:
- forming a composition for an electron emission source on an electrode, with the composition for the electron emission source comprising an acicular material, an oligomer, a crosslinkable monomer, an initiator, and a solvent, with the amount of the initiator being more than 5 parts by weight based on 100 parts by weight of the oligomer;
- drying the printed composition;
- and
- heat treating the dried composition.
Dependencies are inferred from the claim text.