Field Emission Measurement and Evaluation by Field Ion Microscope of Carbon Nanotube

Abstract

Using the simple sample which equipped a needlelike sample of tungsten with the carbon nanotube, V-I measurement of Multi-wall carbon nanotube (MWNT) was able to be performed and an FEM image and FIM image were able to be observed. In the measurement of the V-I characteristic, MWNT with low threshold value of voltage was found out. Further, in FEM observation, a five member ring which constitutes NT tip were recognized. Six member rings which constitute NT were also found in FIM observation.