Organic halogen-bonded co-crystals for optoelectronic applications

Organic halogen-bonded co-crystals assembled from two or more components via halogen bonds, have attracted significant attention due to their unpredictable and outstanding chemical and physical properties, which make them potential candidate materials for organic optoelectronic applications. This paper briefly summarizes the recent progress in terms of the developed fabrication methods for organic halogen-bonded co-crystals and their multifunctional optoelectronic applications. Based on the current research on organic halogen-bonded co-crystals, we further discuss the achievements as well as the existing challenges. Finally, we provide our outlooks for further studies and applications of organic halogen-bonded co-crystals.