The investigation on new potential energy sources represents a main topic in current scientific research. In this respect, the artificial photocatalysis and the development of molecular photocatalysts play an important role. The incorporation of photoactive species into 2D or 3D structures allows realizing tailor-made heterostructures for specific applications: Light harvesting, electron transfer from donor to acceptor sites or, eventually, photocatalysis. In particular, Ru(II) dyes are potent photo-sensitizers which may either act as photocatalyst themselves or are able to facilitate the conversion of light and induce an electron-transfer process. Carbon nano-membranes (CNMs) are a rather new class of ultrathin freestanding membranes that can be prepared by treatment of appropriate self-assembled monolayers (SAMs) with an electron beam. In order to immobilize metal complexes, as designated photosensitizers, onto CNMs two different synthetic strategies are evaluated: The top-down and the bottom-up approach. Basically, the former one relies on the binding of pre-formed complexes to appropriately functionalized CNMs, whereas the latter one involves the coordination of metal centers to ligand-equipped CNMs.

Towards photoactive carbon nanomembranes: Facing the challenges of bottom-up and top-down approaches

254th National Meeting (2017)

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