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Bi–Ge binary phase diagram.
Scanning electron micrographs of samples grown at 150 Torr and (a) 300, (b) 350, and (c) . The scale bar is .
(a) High-resolution transmission electron micrograph of one of the synthesized Bi catalyzed Ge NWs. (b) Magnified detail of the squared region in (a). (c) Indexed power spectra revealing that the NW grows along the  axis.
Ge NW diameter and NW density at the surface of the substrate (surface coverage) as a function of growth temperature grown at a pressure of 150 Torr.
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