Control of single electron charge states in molecules on surfaces

Next generation of electronic devices is out of current principles. Therefore we need to explore novel concepts e.g. transistorless molecular quantum-dot cellular automata (mQCA). In the mQCA concept, switching of charge states on molecules arranged in a grid is employed for elemental computing operations. To convert this concept into functional devices, we need to extend substantially our current knowledge about single-electron charge states in molecules. In this project we aim to study formation, time evolution and switching of charge states in ferrocene-based molecules deposited on surface under UHV conditions using Scanning Probe techniques supported by advanced theoretical simulations. We will address these fundamental tasks: (i) an estimation of the lifetime of single electron charge states in molecules and (ii) the formation of two charge states within a single molecule. The project will provide new fundamental information about the behavior of charge states in molecules. This knowledge will provide new perspectives in energy storage and conversion on molecular level.