  Ordered Ag nanowire arrays with high aspect ratio and high density
self-supporting Ag nanowire patterns were successfully prepared using
potentiostatic electrodeposition within the confined nanochannels of a
commercial porous anodic aluminium oxide (AAO) template. X-ray diffraction and
selected area electron diffraction analysis show that the as-synthesized
samples have preferred (220) orientation. Transmission electron microscopy and
scanning electron microscopy investigation reveal that large-area and ordered
Ag nanowire arrays with smooth surface and uniform diameter were synthesized.
Surface-enhanced Raman Scattering (SERS) spectra show that the Ag nanowire
arrays as substrates have high SERS activity.
