Fig. 2.
Scattering lineouts of the polymer:fullerene blends of interest: a GIWAXS vertical lineouts for all blends. Scattering intensity is shifted vertically to allow visual comparison of patterns. Peaks at Q = 5 nm−1 correspond to the polymer (100) plane, whereas the peak at Q = 15 nm−1 indicates the presence of fullerene aggregates. The final peaks at Q = 20 nm−1 are a convolution between the polymer (010) and a secondary fullerene peak, which precludes analysis of the polymer (010) packing in this case. b Lorentz corrected RSoXS profiles for all blends at 283.5 eV. Profiles are scaled to direct beam measurement to compare scattered intensity