Nanoporous Double-Gyroid Structure from ABC Triblock Terpolymer Thick Films

Figure 3

(a) Topographic AFM image of a NIPS-SVA-made (5 h, CHCl₃) PS-b-P2VP-b-PEO/PS-b-PEO thick film showing large grains formed by the DG structure on the material top surface. (b) Magnified AFM topographic view and (c) its 2D-FFT revealing the double wave pattern is well developed within its grain as the 2D-FFT exhibits sharp spots. Scale bars: 250 nm.

(a)

(b)

(c)