title: Preferred growth orientation of metallic fcc nanowires under direct and alternating electrodeposition conditions.
abstract: Gold and copper nanowires were generated through electrochemical deposition into nanoporous polymeric templates. Depending on the growth conditions, such wires exhibited a distinct textured structure as evidenced by x-ray diffraction. The preferred growth orientation is explained by applying the broken-bond model in combination with surface-energy anisotropy and energy minimization. During the growth process, the aspect ratio of the cylindrical nanowire and thus the area of the mantle surface and its contribution to the total surface energy increase. Under direct current deposition conditions, [Formula: see text] textured metallic fcc nanowires represent the configuration of lowest surface energy at aspect ratios above 1. Under alternating current deposition conditions, {110} nanowire base surfaces vanish due to their high surface energy, leading to successive development of a [Formula: see text] texture as the configuration of lowest energy at aspect ratios above 5.
authors: Institute of Materials and Earth Sciences, Darmstadt University of Technology, Petersenstraße 23, D-64287 Darmstadt, Germany.
authors: Florian
authors: F
authors: Maurer
authors: Joachim
authors: J
authors: Brötz
authors: Shafqat
authors: S
authors: Karim
authors: Maria Eugenia
authors: ME
authors: Toimil Molares
authors: Christina
authors: C
authors: Trautmann
authors: Hartmut
authors: H
authors: Fuess