Berlin 2008 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 28: Trends in Ion Beam Technology: From the Fundamentals to the Application
DS 28.6: Vortrag
Donnerstag, 28. Februar 2008, 17:30–17:45, H 2013
SAXS studies of ion-beam induced nano-sized silver metal clusters in glass — •Ivo Zizak1,2, Heinz-Eberhard Mahnke1,3, and Vasil Koteski1,4 — 1Hahn-Meitner-Institute Berlin GmbH, Berlin, Germany — 2Berliner Elektronenspeicherring-Gesellschaft für Synchrotronstrahlung mbh, Berlin, Germany — 3Freie Universität Berlin, Berlin, Germany — 4Vinca Institute, Belgrade, Serbia
In soda lime glass metallic nano-clusters are produced by incorporating the metal ions via ion exchange processes and subsequent energy input for reducing the ions to metal. By irradiation with swift heavy ions the resultant nanometer sized Ag metal clusters were found to be arranged in chains parallel to the direction of the ion beam [1,2]. For a more detailed and more quantitative study of the arrangement, the shape of the clusters, and the formation process, we have started small angle x-ray scattering (SAXS) experiments at the 7-Tesla-multipole-wiggler beam line at BESSY. The first SAXS images confirm the diameter of the Ag- metal droplets observed in transmission electron microscopy images. In an in-situ experiment during annealing with increasing temperature from room temperature up to 340∘C (at this temperature Ag was incorporated by ion exchange) two fractions of scattering centers, increasing with rising temperature, are observed, which are assigned to clusters arranging in chains and clusters homogeneously distributed over the sample volume.
[1] J.J. Penninkhof et al., Appl. Phys. Lett. 83 (2003) 4137
[2] H.-E. Mahnke et al., Nucl. Instr. and Meth. B 245 (2006) 222