Study of the micromorphology and electrical characteristics of onion-like graphtic particles

A method to prepare onion-like graphitic particles was reported. Using a sc anning probe microscope(SPM), we observed two micromorphology forms of as-p repared particles. Some of them are like bear sole, while the others resemb le to calabash. All the particles arranged with axes tropism keeping in rig orous conformity, and some of them as strings. The causes, leading to the o bserved phenomena, were discussed. The electrical characteristics of the pa rticles were measured at room temperature in ambient conditions and showed characteristic of semiconductor.