ELECTRON EMISSION DEVICE AND METHOD OF FORMING ELECTRON WORKFUNCTION REDUCING MATERIAL LAYER ON ELECTRON EMISSION SURFACE

摘要

An electron-emitting surface is provided with a material reducing the electron work function, which is obtained from a suitable reaction. The reaction mixture or the product to be decomposed, for example CsN3, is present in a surface depression of a semiconductor body, while one or more pn junctions act as a heating diode. Upon heating, cesium is released and deposited on the electron-emitting surface.