Figure 2.

AFM images of nanoporous thin filmsaheight image,bphase image. Mixture solvent annealing for 24 h, and washed with methanol. Thin film 45 nm thick, lateral scale 1500 nm × 1500 nm. The inset is the FFT plot of the image

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