Structural characterisation of textured gold nanowires
by Florian Maurer; Joachim Brotz; Gerhard Miehe; Shafqat Karim; Hartmut Fuess
International Journal of Nanotechnology (IJNT), Vol. 8, No. 10/11/12, 2011

Abstract: Gold nanowire ensembles of high aspect ratio were grown by electrodeposition into nanoporous polymeric templates. Under dc electrodeposition conditions a strong <110> texture of the nanowires was observed, whereas under ac deposition conditions a preferred growth direction in <100> was found. Transmission electron microscopy (TEM) and X-ray diffraction (XRD) investigations confirm the broken bond model describing the different textures of nanowires. The dc electrodeposition leads to large oriented grains, resulting in a strong <110> texture over the whole nanowire while ac electrodeposition leads to small grains of random orientation at the beginning of the growing process. The <100> texture starts to develop at higher aspect ratios which are confirmed by TEM and X-ray line profile analysis.

Online publication date: Sat, 24-Dec-2011

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