Design, Synthesis and Applications of Phospha(twisted)NanoGraphenes

Projektbeschreibung

Erweiterter Einsatz von 2D-Werkstoffen in der Werkstoffkunde durch optimierten Grafit

Grafitmoleküle sind essentiell für moderne Elektronik und aufkommende Technologien wie tragbare Geräte und künstliche Haut. Finanziert über den Europäischen Forschungsrat sollen diese Moleküle im Projekt PhosphatNGs bearbeitet werden, indem Phosphor-Heterocyclen eingebaut werden. Indem die Eigenschaften modifiziert und die molekulare Anordnung reguliert wird, könnten einzigartige organische Werkstoffe geschaffen werden, die bisher aufgrund mangelnder Fortschritte in der Organophosphorchemie unerreichbar waren. Die Forschenden werden ausgewählte einzelne und zusammengesetzte Grafitnanopartikel als chiroptische Werkstoffe und als Prototypen für Feldeffekttransistorsensoren prüfen und so die Grundlage für neue Forschung in der Werkstoffkunde legen.

Ziel

Nano-Graphitic molecules (NGs) are pivotal for existing microelectronics and the development of emerging technologies: wearable electronics, artificial skins and nerves, etc. Their outstanding semiconducting properties rely on the efficient overlap of their carbon-scaffold and the spatial disposition of molecules. If we could twist the planar framework of NGs, diversify their pi-scaffold with heteroatoms, while keeping control over the molecular organization, we could modify their properties and access innovative materials with uncharted research opportunities for organic electronics. Through an innovative approach, I target to insert phosphorus heterocycles into (twisted)NGs as tools to tailor their properties and meticulously control their molecular arrangement. With Phospha(t)NGs, I will provide a highly versatile protocol for the preparation of novel, twisted phospha-NGs. Thanks to the unique chemistry of phosphorus, I aim at establishing an unconventional methodology to sequentially organize NGs into hierarchical architectures. My groundbreaking approach will lead to materials that were inaccessible to date as organophosphorus chemistry was too immature so far. Through an arsenal of spectroscopic techniques, I will achieve the first comprehensive investigation on the impact of heteroatoms into the twisting-induced properties of NGs. The outcomes of Phospha(t)NGs will have a wide range of applications. Here, I will test selected individual and assembled phospha-NGs as chiroptical materials and as prototypes of field-effect transistor sensors, laying the foundation for new research opportunities in material science. Thus, Phospha(t)NGs will consolidate the bedrocks for new, cutting-edge fields of research, whose development will clearly extend beyond the time-scale of this proposal.