Dielectrophoresis in stabilized carbon nanotube(CNT)suspensions was demonstrated to be able to direct CNT. CNT could be effectively wetted and dispersed in surfactant and organic solvent. Comparison between surfactant (liquid viscosity of SDBS was 1.312 mPa · s) and organic solvent (liquid viscosity of DMF was 0.802 mPa · s) showed that CNT was dissolvable as individual tubes in surfactant suspensions yet not in organic solvent. According to the theory of dielectrophoresis, CNT could be driven by electric field-induced polarizabilities. Analysis of the effect of CNT alignment in surfactant suspensions and organic solvent indicates that high liquid viscosity of surfactant suspensions leads to worse directional effect in surfactant suspensions than that in organic solvent.
|Number of pages||4|
|Journal||Nami Jishu yu Jingmi Gongcheng/Nanotechnology and Precision Engineering|
|Publication status||Published - Jan 2009|