Dresden 2006 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
HL: Halbleiterphysik
HL 9: Poster I
HL 9.23: Poster
Montag, 27. März 2006, 15:15–17:45, P3
Pulsed Laser Deposition growth and characterization of laterally arranged uniform ZnO nanowires — •Andreas Rahm1, Thomas Nobis1, Michael Lorenz1, Gregor Zimmermann1, Marius Grundmann1, Bodo Fuhrmann2, and Frank Syrowatka2 — 1Universität Leipzig, Fakultät für Physik und Geowissenschaften, Linnéstr. 5, D-04103 Leipzig, Germany — 2Universität Halle, Zentrum für Materialwissenschaften, Hoher Weg 8, D-06120 Halle, Germany
A regular lateral alignment of Zinc Oxide nanostructures which have very promising optical properties is necessary for practical device applications. We report on the Pulsed Laser Deposition [1] growth of free standing nanowire arrays with uniform hexagonal arrangement. In order to achieve this we prepared an ordered array of catalytic gold particles by nanosphere lithography [2] using monodisperse spherical polystyrol nanoparticles. These templates were investigated by Scanning Electron Microscopy and Atomic Force Microscopy prior to growth. Using XRD we determined the crystallographic relations between the ZnO wires and the a-plane sapphire substrates. Furthermore we present Cathodoluminescence measurements.
[1] M. Lorenz, E.M. Kaidashev, A. Rahm, T. Nobis, J. Lenzner, G. Wagner, D. Spemann, H. Hochmuth, M. Grundmann, Appl. Phys. Lett. 86 (2005), 143113
[2] J.C. Hulteen, R.P. van Duyne, J. Vac. Sci. Technol. A 13(3) (1995), 1553