We are exploring the design and synthesis of molecular wires, transistors and memory devices that exploit the unique behaviour of single molecules, such as quantum interference. Current work involves contacting molecules to electrodes made from gold and graphene. Gold STM break-junction measurements give reliable values for the molecular conductance under ambient conditions. Connecting molecules across graphene nanogaps allows the energy levels to be controlled with a gate electrode. Charge transport can be studied at cryogenic temperatures giving detailed information on the electronic structure.
