Preparation and Preliminary Nonlinear Optical Properties of BiFeO₃ Nanocrystal Suspensions from a Simple, Chelating Agent-Free Precipitation Route

Figure 4

Representative TEM images of crystallized samples precipitated at 3 M (a) and 4 M (b) of KOH. Corresponding DLS sizes by number are centred at 90 nm and 100 nm, respectively.

(a)

(b)