title: A simple, efficient suspension of individual multi-walled carbon nanotubes based on a deep trench electrode.
abstract: We report the suspension of individual multi-walled Carbon nanotube (MWNT) from the bottom substrate using deep trench electrodes that were fabricated using optical lithography. During drying of the solution in dielectrophoretic assembly, the capillary force pulls the MWNT toward the bottom substrate, and it then remains as a deformed structure adhering to the bottom substrate after the solution has dried out. Small-diameter MWNTs cannot be suspended using thin electrodes with large gaps, but can be suspended using thicker electrodes. We present the statistical experimental results for successful suspension, as well as the feasible conditions for MWNT suspension based on a theoretical approach.
authors.affiliation: Nano-Mechanical Systems Research Center, KIMM, 171 Jang, Yousung, Daejeon, Korea.
authors.forename: Chang-Soo
authors.initials: CS
authors.lastname: Han
authors.forename: Jong-Hong
authors.initials: JH
authors.lastname: Lee
authors.forename: Hee Won
authors.initials: HW
authors.lastname: Seo
authors.forename: Jin-Won
authors.initials: JW
authors.lastname: Song
authors.forename: Ji-Eun
authors.initials: JE
authors.lastname: Kim
authors.forename: Muncheol
authors.initials: M
authors.lastname: Won
mesh_terms: D003102:Colloids / Q000737:chemistry; D003460:Crystallization / Q000379:methods*; D004563:Electrochemistry / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008839:Microelectrodes; D008968:Molecular Conformation; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D013499:Surface Properties
chemical_list: D003102:Colloids; D046911:Macromolecular Substances; D037742:Nanotubes, Carbon