Vorträge und Posterpräsentationen (mit Tagungsband-Eintrag):
R. Ritter, R.A. Wilhelm, M. Stöger-Pollach, A. Mücklich, U. Werner, A. Beyer, S. Facsko, A. Gölzhäuser, F. Aumayr:
"Nanopores milled in carbon nanomembranes due to impact of individual slow highly charged ions";
Poster: 16th International Conference on the Physics of Highly Charged Ions (HCI 2012),
03.09.2012; in: "Book of Abstracts, 16th International Conference on the Physics of Highly Charged Ions (HCI 2012)",
Nanostructures produced by slow highly charged ion (HCI) impact on surfaces have been a hot topic
recently (see [1 - 4] and refs. therein). In this contribution we present first investigations on the effect
of individual slow HCI bombardment of freestanding carbon nano-membranes (CNMs). The CNMs
are produced by cross-linking of an aromatic self-assembled monolayer of biphenyl units with lowenergy
electrons . The substrate is then subsequently removed and the resulting nanosheet (1 nm
thickness) transferred onto a holey carbon TEM grid. CNMs produced in such a way are irradiated
by slow Xeq+ ions of various charge states (20 ! q ! 40) and kinetic energies (4 keV ! E ! 180 keV).
After irradiation the CNMs are inspected by high resolution imaging techniques, e.g. TEM, SEM and
AFM. On the irradiated CNMs we find nanoscopic pores (3 - 30 nm in diameter, see fig. 1), whose
number density corresponds well with the incident ion fluence, indicating that about every HCI
produces a nano-hole in the CNM.
Erstellt aus der Publikationsdatenbank der Technischen Universitšt Wien.