SORTING AND ASSEMBLY OF SINGLE-WALLED CARBON NANOTUBES BY DIELECTROPHORESIS IN MICROLIQUID CHANNELS: A NUMERICAL STUDY

摘要

Single-walled nanotubes (SWNT) are candidates for components in a number of electronics and sensing applications. In most applications it will be required that the SWNT with semiconducting and metallic properties can be separated and that efficient routes to mass production of nanotube-microsystem devices are established. Dielectrophoresis is a method capable of both sorting SWNT [1] and assembling these onto large arrays of microelectrodes in parallel. From numerical studies we find that sorting can be made highly efficient by integration of electrodes in a micro-liquid channel with proper selection of the conditions of the dielectrophoretic process.