ELECTRON-EMITTING ELEMENT AND IMAGE PICKUP DEVICE PROVIDED WITH SAME

摘要

Disclosed is a surface emission type electron-emitting element (1), wherein even when a focusing electrode layer (8) is provided therein, a gate electrode layer (6) and the focusing electrode layer are not electrically connected by a carbon layer (11). Also disclosed is an image pickup device which is provided with the electron-emitting element. Specifically disclosed is an electron-emitting element which is provided with: an electron-emitting layer (3) for emitting electrons from a surface emission part (9); a gate electrode layer which is formed on the surface of the electron-emitting layer with a first insulating layer (5) interposed therebetween; a focusing electrode layer which is formed on the surface of the gate electrode layer with a second insulating layer (7) interposed therebetween, and focuses emitted electrons; an emission recess (10) which penetrates the focusing electrode layer, the second insulating layer, the gate electrode layer and the first insulating layer, and forms a recess-shaped opening to the surface of the surface emission part; and a carbon layer which is formed from the surface of the focusing electrode layer to the inner surface of the emission recess. The carbon layer has an annular discontinuous part (11a) at a film formation part of the emission recess to which a layer end of the second insulating layer faces.