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.

本研究旨在探究π扩展硒二唑并吡嗪（π-extended selenadiazolopyrazine）与二茚并苝（diindenoperylene）的共混体系在薄膜中的生长行为，该体系包含多种异质结结构（混合体相异质结与平面异质结）。研究将通过掠入射广角X射线衍射（grazing incidence wide angle X-ray diffraction）实验对生长过程进行原位监测，随后实施后退退火处理。本研究获取的关于这类独特材料的分子排列、晶体结构及混合行为的相关认识，将用于阐明该共混薄膜的光物理特性，而该特性与光电器件的应用密切相关。