One of the most challenging Graal in nanosciences resides in our ability to design, control, and operate functionalized devices at the nanoscale. While various techniques are used to reach this goal, several drawbacks still remain difficult to tackle. In this quest, the silicon surface remains a tremendous versatile playground to meet this challenge. During this talk, after a quick overview of the actual state-of-the-art, I will firstly present some recent finding that allow to perform and run a 2D device made of single atom quantum dots. This atomic structure offers the possibility to be reversibly switched to an ON and OFF state, mimicking the well-known transistor function[1] . I will also address our abilities to control the manipulation and formation of molecular dyads to study charge transfer processes at the nanoscale. We have shown recently that non-bonding FeTPP homodimers adsorbed on a semi-insulating CaF2/Si(100) layer can be used to investigate charge transfer at the nanoscale[2] . In particular, we have demonstrate that the dynamics in relation to the excitation position can rule the charge transfer efficiency that mainly follows anti-Kasha rule.

From single molecule to molecular devices: Silicon surface as a study platform

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.