Investigating the Relationship Between Photophysics and Structural Properties in Mixed Films of pi-Extended Selenadiazole

This study aims to investigate the growth of blends of pi-extended selenadiazolopyrazine with diindenoperylene in thin films, featuring various heterostructures (mixed bulk-heterojunction and planar heterojunction). The growth will be monitored in situ via grazing incidence wide angle X-ray diffraction experiments, followed by post-annealing. The insights gained about the molecular arrangement, structure, and mixing behavior of these unique materials will be utilized to elucidate the photophysics of the mixed films, which are of relevance to optoelectronic devices.