国家/地区 中国（2）
IPC部 C（2）
IPC大类 C01（2） H01（2）
IPC小类 C01B（2）
IPC H01J009/02（2）
发明人
公开年 2020（2）
申请年 2020（2） 
专利权人

Preparation of nitrogen-doped reducing graphene oxide field emitting cathode used e.g. for field emission device, by mixing graphene oxide and organic adhesive, dispersing, using one end of graphite rod to dip, and drying graphite rod.

SONG Y, YU Y, LI B

Field emission cathode based on graphene/metamaterial composite nanostructures used in the field of high brightness and coherent electron sources comprises e.g. base material on patterned vertical carbon nanotube array and graphene material.

XU J, SHI Y, ZHANG X