Figure 45

Fig. 45: Grazing-incidence diffraction from a POPOP film grown on KCl(001). (a) shows an in-plane scan along the [110] azimuth of the substrate. Reflections due to the film are marked by their in-plane scattering vectors as A*, 2A*, and B*', whereas K denote scattering from a Kapton window and P a powder ring of the substrate. (b) displays rod scans taken at the three in-plane scattering vectors found in the scan shown above.