Influence of a surfactant on single ion track etching : Preparing and manipulating cylindrical micro wires

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Leo C.T. Man
  • Pavel Apel
  • T. Cheung
  • Lars Westerberg
  • Cristian Zet
  • Reimar Spohr

Detail(s)

Original languageEnglish
Pages (from-to)621-625
Journal / PublicationNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume265
Issue number2
Publication statusPublished - Dec 2007

Abstract

The influence of the alkali resistant surfactant Dowfax 2A1 on single ion track etching in 30 μm polycarbonate foils is studied at low etch rate (5 M NaOH at 41.5 ± 2 °C) using electro conductivity measurements. At surfactant concentrations above 10-4 vol.% break-through times are predictable (Δt/t <0.25). At high surfactant concentrations (≥0.1 vol.%) the formation of cylindrical channels is favoured. The shape of these channels (length ≥ 26 μm, diameter ≥ 1.8 μm) is verified by electro-replication and SEM observation of the resulting wires. Agreement of radii is better than 0.1 μm. Depending on the current limit set during electro replication compact or hollow cylinders can be obtained. A technique for localizing and manipulating individual micro wires by their head buds is described. © 2007 Elsevier B.V. All rights reserved.

Research Area(s)

  • Cylinder, Electro conduction, Electro replication, Ion track, Micro channel, Micro tube, Micro wire, Nano channel, Nano wire, Real-time measurement, Surfactant interaction, Track etching

Citation Format(s)

Influence of a surfactant on single ion track etching: Preparing and manipulating cylindrical micro wires. / Man, Leo C.T.; Apel, Pavel; Cheung, T. et al.
In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 265, No. 2, 12.2007, p. 621-625.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review