Field Emission Properies of CNTs Treated by Helium Plasma
This paper presented a novel post-treatment method of He plasma,which could effectively improve the field emission characteristics of screen-printed CNTs cathodes. Notable changes in the surface morphologies of screen-printed CNTs cathodes were investigated by scanning electron micro scope (SEM) as the f unction of treatment by He plasma.The results showed the post-treated CNTs cathodes hold lower turn-on electric field,higher field emission current density,more emission sites,and better uniformity than those of untreated ones.
Weiguo Pan, Jianxing Ren and Yongguang Li
S. L. Xue et al., "Field Emission Properies of CNTs Treated by Helium Plasma", Advanced Materials Research, Vols. 347-353, pp. 4008-4011, 2012