Figure 2.

Schematic for the synthesis of bunch-like bismuth that can be achieved via two-step electrodeposition. a Sputtering a mesh-like Au layer (the yellow layer) on one planar surface side of the AAM (the deep blue layer). b Electrodepositing bismuth (the light green rods) into the AAM, the bismuth begin to grow out of the membranes. c DC deposition continued, the nanowire became longer and thinner. d The neighboring nanowires had their ends assembled and knitted together from different orientations