After plasma surface treatment, the emission site density (ESD) of thescreen-printed CNT cathode has the magnitude enhancement and achieves a level forpractical use.

• 本文认为这种类似于CNT发射尖端的富勒烯球与管壁的结合使CNT的发射模式从单尖端发射变为多尖端发射，宏观上导致了处理后CNT阴极电子发射点密度数量级的增加。