코팅된 탄소나노튜브의 Field Emission 특성

Abstract

The FE current depends strongly on the work function and geometry of the surface. The high-FE current from carbon nanotubes is thought to be due to the sharpness of tubes that enhances the local electric field. In previously study of other group, we are interested in field emission property of wide bandgap material (WBGM) coated emitter. That emitters has been reported to increase the FE current. So, we decide that WBGM deposition apply to carbon nanotube. It would, therefore, be interesting to study the effects of MgO / CsI on carbon nanotubes. MgO and CsI are chosen because of their small positive electron affinity and chemical inertness.