Figure 4.

AFM height images of C18A (left) and C22A (right) film structures spin coated from methanol and m-cresol mixed solvent (methanol: m-cresol = 10). The z range is 5 nm for both images.

Wan et al. Nanoscale Res Lett 2011 6:49   doi:10.1007/s11671-010-9793-9