Figure 2From: Investigation on the role of the molecular weight of polyvinyl pyrrolidone in the shape control of high-yield silver nanospheres and nanowiresSEM images of silver nanocrystals obtained by varying the concentrations of PVP MW=29,000 and PVP MW=40,000 . PVPMW=29,000(a) 0.143 M, (b) 0.286 M, and (c) 0.572 M. PVPMW=40,000(d) 0.143 M, (e) 0.286 M, and (f) 0.572 M.Back to article page