Figure 4
From: bOptimizing atomic force microscopy for characterization of diamond-protein interfaces
Influence of the tip radius on AFM topography and phase. AFM topography (a, b) of FBS layer on H-terminated MCD obtained in solution using cantilevers with different tip radius. Estimated tip radius r a ~ 30 nm, r b ~ 50 nm. Lxa = 12 nm, Lxb = 21 nm. Corresponding AFM phase images (c, d) show the difference in Lx values for phase (Lxc = 8 nm and Lxd = 22 nm). (e) The model illustrates the effect of tip shape on the broadening of features in the phase images.