title: Fabrication of one-dimensional devices by a combination of AC dielectrophoresis and electrochemical deposition.
abstract: We demonstrate a hybrid process for fabricating one-dimensional wire devices. The process is a combination of an alignment procedure using dielectrophoresis and subsequent contact metal formation utilizing electrochemical deposition with non-toxic organic-based Au electrolytes. Several devices have been successfully made from GaN nanowires or multi-walled carbon nanotubes (MWCNTs) using our hybrid technique. We demonstrate that rapid thermal annealing improves the ohmic characteristics by five orders of magnitude in the case of the GaN devices and ∼300% in the case of the MWCNT devices. One of the reasons for this improvement is enhanced gold wetting due to the reduction of grain size at the annealing temperature.
authors.affiliation: Research Center for Time-domain Nano-functional Devices, Korea University, 5-1 Anam, Sungbuk, Seoul 136-701, Korea. School of Electrical Engineering, Korea University, 5-1 Anam, Sungbuk, Seoul 136-701, Korea.
authors.forename: S H
authors.initials: SH
authors.lastname: Hong
authors.forename: M G
authors.initials: MG
authors.lastname: Kang
authors.forename: H-Y
authors.initials: HY
authors.lastname: Cha
authors.forename: M H
authors.initials: MH
authors.lastname: Son
authors.forename: J S
authors.initials: JS
authors.lastname: Hwang
authors.forename: H J
authors.initials: HJ
authors.lastname: Lee
authors.forename: S H
authors.initials: SH
authors.lastname: Sull
authors.forename: S W
authors.initials: SW
authors.lastname: Hwang
authors.forename: D
authors.initials: D
authors.lastname: Whang
authors.forename: D
authors.initials: D
authors.lastname: Ahn