Introduction of Carboxylic Acid Synthons into Thiophene-based Semiconductor Co-Crystals and Effects on Crystal Packing

Organic semiconductors are of high interest due to a promise of low cost, flexible electronics, with applications in large area displays and energy storage. Solid state packing of organic semiconductors impacts electrical properties. We have demonstrated the inclusion of a second molecule, known as a semiconductor co-crystal former (SCCF), has a positive impact on the solid state packing by increasing pi-pi interactions between adjacent semiconductor molecules. Here, we report initial findings on how SCCFs with different carboxylic acids affect the solid-state packing of thiophene based semiconductor co-crystals.