Tailoring Charge Modulation in Synthetic Molecules and Two-Dimensional Crystals*

We use atomic manipulation to explore methods to control charge modulation in synthetic systems. From synthetic molecules to two-dimensional systems, atomic manipulation allows us to engineer changes in the electronic behavior. We then visualize the resulting charge modulations within these synthetic systems with great detail through tunneling spectroscopy. For two-dimensional crystals this could also allow us to explore the formation of charge density waves. The control of charge modulation can create unique devices such as large bandwidth frequency sources and sub-Boltzmann switching transistors for ultra-low power digital operation.