Fig. 4
From: Modeling the Effects of Nanopatterned Surfaces on Wetting States of Droplets
The free energy difference between the W and CB states as the function of hole height H h under different nanohole radii (a). b–d are phase diagrams of wetting states of the water droplet on hole-patterned surfaces. In each panel, the inserted square dots represent experimental measurements compared with our model and the black line delineates the division between the W and CB states. Hole spacing of center-to-center D h = 300 nm, experimental data from Ref. 35 (b); D h = 3 nm, experimental data from Ref. 36 (c); D h = 250 nm, experimental data from Ref. 37 (d)