国家/地区 中国（5）
IPC部 C（5）
IPC大类 C23（5）
IPC小类 C23C（5）
IPC H01J009/02（5）
发明人
公开年 2022（3）
申请年 2021（3） 
专利权人

Preparing petal-shaped graphene field emission cold cathode, comprises selecting and cleaning substrate, selecting silicon sheet and copper foil copper foil as substrate, and growing layer of copper film on substrate surface.

ZHANG X, LEI W, ZHAO Z, ZHAO N

Preparing diamond-multilayer graphene composite cathode material e.g. used in emission display, involves grinding silicon substrate in diamond powder uniformly and compactly, putting grinded silicon substrate into suspension liquid made of diamond powder.

LIU H, GUAN L, WANG B, ZHANG W, XIONG Y

Preparing graphene field emission source useful in field emission cathode of electronic device e.g. display device, comprises slowly cooling carbon atom dissolved to metal material to form graphene layer by stage cooling, closing power supply to room temperature, and taking out metal material.

QIN C, LI T, WANG Q, LOU H, SHI L, LUO L, HUANG S

Electron-emitting element e.g. cold cathode-type electron source, has coating membrane that is film which transmits electron, and second electrode that is protective film of different material, and comprises electron emission surface.

MURAKAMI K, NAGAO M, KATSUHISA M, MASAYOSHI N

Improving field emission performance of graphene sheet-silicon nanowire array composite material involves preparing silicon nanowire array by using metal catalytic corrosion method, and bombarding silicon nanometer by using silver ion.

DENG J, ZHANG Y, ZHU W