Figure 3.

AFM images of the nanoporous thin filmsaheight image,bphase image,cenlarged height image. Mixture solvent annealing 72 h, and washed with methanol. Thin film 45 nm thick, lateral scale 1500 nm × 1500 nm. The inset is the FFT plot of the AFM image

Liu and Stamm Nanoscale Research Letters 2009 4:459-464   doi:10.1007/s11671-009-9263-4