The property and function of modern materials, which are often complex systems involving multi-components, rely on their composition and structure of individual components, and how these individual components are assembled. One of the significant challenges in developing high performance organic semiconductor materials is how to controllably transform molecular structures into desired solid state materials with a specific solid state packing motif, for example, a lamellar stacked molecular packing motif. Our group focuses on solving this challenge through a multifaceted approach by 1) experimentally assemble fluorinated polyaromatic molecules into organic semiconducting materials with specific solid state structures and function through co-crystallization processes; and 2) computationally understand the intermolecular interaction forces involved in co-crystallization to guide such assembling processes. Students involved in this project are expected to learn knowledge and skills for solving complex problems in materials chemistry as well as in pharmaceutical industry where multi-components co-crystallization is important for drug formulation.