Dresden 2014 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 35: Poster I: Application of thin films; Focus session: Sensoric micro and nano-systems; Focus Session: Sustainable photovoltaics with earth abundant materials; Graphen (joint session with TT; MA; HL; DY; O); Ion and electron beam induced processes; Layer properties: electrical, optical, and mechanical properties; Magnetic/organic interfaces, spins in organics and molecular magnetism; Micro- and nanopatterning (jointly with O); Organic electronics and photovoltaics (jointly with CPP, HL, O); Thermoelectric materials
DS 35.37: Poster
Mittwoch, 2. April 2014, 17:00–20:00, P1
cAFM measurements of conductive ion tracks in ta-C — •Julian Alexander Amani1, Johann Krauser2, Hermann Rothard3, Tristan Koppe1, Ulrich Vetter1, Hans Hofsäss1, Serge Della-Negra4, and Christina Trautmann5 — 1II. Physikalisches Institut, Georg-August-Universität Göttingen — 2Department of Automation and Computer Sciences, Harz University of Applied Sciences — 3Centre de Recherche sur les Ions, les Matériaux et la Photonique Ganil, Caen — 4Matière Nucléaire, Institute de Physique Nucléaire, Orsay — 5Materialforschung, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt
The passage of a swift heavy ion through tetrahedral amrophous carbon (ta-C), unlike through boron nitride (BN), leaves a conductive ion track behind. In this work three types of ion tracks were created: uninterrupted conductive ion tracks in ta-C only samples, tracks with a single, highly resistive barrier of BN and samples with two high-resistance BN barriers and a conductive island in the thin ta-C layer in between. The ta-C and BN layers were consecutively grown using mass selective ion beam deposition. The tracks were formed by irradiation with 30MeV C602+ fullerenes. The irradiated samples were analysed using conductive atomic force microscopy (cAFM) at room temperature. As a measure for the homogeneity of the created tracks, the distribution of track conductivities over a large-area of the sample is presented. Additionally, the current-voltage behaviour of the three variants of tracks will be shown.