Dr. Liu’s research aims to achieve coherent control of functionality and properties across different scales through molecular level design and synthesis. With the developed materials chemistry, Dr. Liu has not only established an organic version of a comprehensive set of nanostructures, but also offered a knowledge base in guiding the design of nanostructures with desired electronic or optical properties. Better understanding and control of charge transport across interfaces in hybrid semiconducting materials enables the development of nanostructured electronic materials based on tailor-made electron donors and acceptors. A new direction is the development of functional covalent organic framework (COF) materials.