Abstract
A mechanical pressure injection technique has been used to fabricate uniform bismuth (Bi)nanowires in the pores of an anodic aluminum oxide (AAO) template. The AAO templatewas prepared from general purity aluminum by a two-step anodization followed by heattreatment to achieve highly ordered nanochannels. The nanowires were then fabricated byan injection technique whereby the molten Bi was injected into the AAO template using ahydraulic pressure method. The Bi nanowires prepared by this method were found to bedense and continuous with uniform diameter throughout the length. Electron diffractionexperiments using the transmission electron microscope on cross-sectional andfree-standing longitudinal Bi nanowires showed that the majority of the individualnanowires were single crystalline, with preferred orientation of growth along the[011] zone axis of the pseudo-cubic structure. The work presented here provides an inexpensiveand effective way of fabricating highly ordered single-crystalline Bi nanowires, with uniformsize distributions.
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