公开(公告)号：US20150015166A1

公开(公告)日：2015-01-15

申请号：US13942092

申请日：2013-07-15

Applicant: National Defense University

Inventor： Yih-Ming LIU ,  Meng-Jey YOUH ,  Nen-Wen PU ,  Ming-Der GER ,  Kevin CHENG ,  Kun-Ju CHUNG ,  Jhih-Cheng JIANG ,  Guan-Fang XU

IPC: H01J1/304 ,  H01J63/06

CPC classification number: H01J1/304 ,  H01J7/18 ,  H01J63/06

Abstract: A field emission cathode comprises at least one electron emitting parcel, and at least one ion absorbing parcel each being electrically connected with each of the at least one electron emitting parcel. The electron emitting parcel includes a first substrate and a nano emission component disposed on the first substrate for emitting electrons in an electric field. The ion absorbing parcel is constituted by a second substrate, in which the electric conductivity of the first substrate is less than that of the second substrate. A field emission light comprises the said field emission cathode, a field emission anode and a power supply. Thus the positive ions in an electric field can be absorbed by ion absorbing parcels to suppress an ion bombardment in the electric field. The efficiency of the electric field of the field emission is then maintained, and the lifetime of the field emission light is enhanced.

Abstract translation: 场发射阴极包括至少一个电子发射包裹物，以及至少一个离子吸收包裹，每个离子吸收包裹与所述至少一个电子发射包裹中的每一个电连接。 电子发射包裹物包括第一衬底和设置在第一衬底上的用于在电场中发射电子的纳米发射部件。 离子吸收包裹由第二基板构成，其中第一基板的电导率小于第二基板的电导率。 场发射光包括所述场致发射阴极，场发射阳极和电源。 因此，电场中的正离子可以被离子吸收包裹吸收，以抑制电场中的离子轰击。 然后保持场发射的电场效率，并且增强场发射光的寿命。