Dynamics of ion guiding through nanocapillaries in insulating polymers

N. Stolterfoht, Erwin Bodewits, Rolf Hellhammer, Z. Juhász, B. Sulik, Veronika Bayer, Christine Trautmann, Ronnie Hoekstra

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We review recent studies of dynamic properties concerning the ion guiding through nanocapillaries etched in polyethylene terephthalate (PET) and polycarbonate (PC). Typical lengths of the capillaries were 10 μm with diameters ranging from ∼100 - 400 nm. The temporal evolution of the intensity and the angular distribution of the transmitted ions were studied by measuring transmission profiles as a function of the charge inserted into the capillaries. Tilt angles of the capillaries axis with respect to the incident beam direction were 3° and 5°. The mean emission angle of the transmission profiles exhibit pronounced oscillatory structures both for PET and PC. However, for PC nearly an order of magnitude more charge is required to induce the oscillations. In contrast to PET, with capillaries in PC we observed a strong decrease of the profile intensities with irradiation time. This observation provides evidence for blocking effects on the ion transmission. The experimental results are interpreted by simulations of the ion trajectories guided in 3 dimensions by the electrostatic field within the capillaries. This field was determined from the charge deposited at the walls of the capillaries taking into account the removal of the charges by means of a non-linear conductivity law.

Original languageEnglish
Article number012049
JournalJournal of Physics: Conference Series
Volume388
Issue numberPART 1
DOIs
Publication statusPublished - 2012

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polycarbonates
polyethylene terephthalate
polymers
ions
profiles
dynamic characteristics
angular distribution
trajectories
conductivity
oscillations
irradiation
electric fields
simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Dynamics of ion guiding through nanocapillaries in insulating polymers. / Stolterfoht, N.; Bodewits, Erwin; Hellhammer, Rolf; Juhász, Z.; Sulik, B.; Bayer, Veronika; Trautmann, Christine; Hoekstra, Ronnie.

In: Journal of Physics: Conference Series, Vol. 388, No. PART 1, 012049, 2012.

Research output: Contribution to journalArticle

Stolterfoht, N, Bodewits, E, Hellhammer, R, Juhász, Z, Sulik, B, Bayer, V, Trautmann, C & Hoekstra, R 2012, 'Dynamics of ion guiding through nanocapillaries in insulating polymers', Journal of Physics: Conference Series, vol. 388, no. PART 1, 012049. https://doi.org/10.1088/1742-6596/388/1/012049
Stolterfoht, N. ; Bodewits, Erwin ; Hellhammer, Rolf ; Juhász, Z. ; Sulik, B. ; Bayer, Veronika ; Trautmann, Christine ; Hoekstra, Ronnie. / Dynamics of ion guiding through nanocapillaries in insulating polymers. In: Journal of Physics: Conference Series. 2012 ; Vol. 388, No. PART 1.
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