Abstract
Ag 7Te 4 nanowires have successfully been synthesized into porous anodic alumina membranes by DC electrodeposition from aqueous solution. X-ray diffraction (XRD), selected-area electron diffraction (SAED), and high-resolution transmission electron microscopy (HRTEM) results show that the as-synthesized sample is single crystal hexagonal Ag 7Te 4. Transmission electron microscopy (TEM) and field emission scanning electron microscopy (FE-SEM) results demonstrate that the Ag 7Te 4 nanowire arrays with a high filling rate are dense, smooth, and uniform in large area. X-ray photoelectron spectroscopy (XPS) analysis indicates that the atomic ratio of Ag to Te is close to 7:4 stoichiometry. The effects of several electrodeposition parameters on the Ag 7Te 4 nanowire arrays are discussed.
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