Franklin‘s work focuses on studying the electronic properties of molecular nanostructures in a field-effect transistor configuration. As the size of electronic devices grow smaller, control over their precise structure becomes ever more important for obtaining consistent electronic behavior. Bottom-up synthesis from well-defined, rigid molecular building blocks offers a way to assemble atomically precise electronic materials. Franklin is using scanning tunneling microscopy and spectroscopy to study bottom-up synthesized molecular nanostructures such as covalent organic frameworks (COFs) and graphene nanoribbons grown within a graphene nanogap, with the goal of correlating the local electronic and atomic structure to global electronic transport properties of the material.