The DSOS (Design & Synthesis of Organic Semiconductors) group started in 2010 as a subgroup of the Organic and (Bio)Polymer Chemistry (OBPC) research group within the Chemistry division of Hasselt University. Its key competences relate to the synthesis and characterization of organic semiconducting materials and their integration in opto-electronic devices, pursuing rational structure-property relations. These activities are strongly embedded in the Institute for Materials Research (IMO) of Hasselt University, facilitating interaction with materials and device physics experts and providing access to state of the art equipment. We conduct both fundamental and more applied research and have a strong focus on PhD training. The OBPC research group also has a longstanding tradition in joint scientific R&D within European, national and regional projects, and servicing for industry and research centers.