METHOD OF MANUFACTURING OF FIELD-EMISSION CATHODE WITH EMISSION LAYER FROM NANOFIBER MATERIAL BASED ON CARBON Russian patent published in 2008 - IPC B82B3/00 

FIELD: technological processes.

SUBSTANCE: substance of invention is the method of manufacturing of field-emission cathode with emission layer from carbon nanofiber material via evaporating oxygen from graphitic heater inside gasostat, containing the following operations: purging the working cavity of gasostat, followed by filling the cavity with pressurised working gas, heating, conditioning at given temperature, followed by cooling to room temperature, manufacturing of cathode bed via processing basic graphitic element of the bed in alcoholic solution of metallocene, followed by drying and mechanical processing. Then, this bed is placed inside the gasostat on heater surface. After that, the process of carbon evaporation from graphitic source is started by heating. The evaporation process is accompanied by growing of carbon-nitrogen nanofiber on the bed. Instead of metallocene alcoholic solution, the same solution of ferrocene can be used.

EFFECT: invention allows to produce a ready-to-use field-emission cathode with increased nanomaterial adhesion to bed.

5 cl, 4 dwg