Figure 6
Cartoons illustrate the nanostructural features of PC71BM nanodomains for the N-1.5 (top) and D-1.5 (bottom) films, including the through-thickness composition profiles illustrated on the left-hand side. Note that the PC71BM aggregates (in red) are enriched and enlarged at and near the surface of the N-1.5 film. In contrast, relatively small PC71BM aggregates are distributed homogeneously in the D-1.5 film, with porosity largely eliminated. |