Dresden 2017 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 10: Bioinspired Functional Materials II

CPP 10.9: Vortrag

Montag, 20. März 2017, 17:15–17:30, ZEU 114

Immobilization Strategies for Photoactive Metal-Complexes on Carbon NanomembranesMaria Küllmer1, Patrick Endres2, Christof Neumann1, •Andreas Winter1, Andreas Winter2, Benjamin Dietzek1,3, Ulrich Schubert2,4, and Andrey Turchanin1,41Institute of Physical Chemistry, Friedrich Schiller University Jena, 07743 Jena — 2Institute of Organic Chemistry, Friedrich Schiller University Jena, 07743 Jena — 3Leibniz Institute of Photonic Technology, 07745 Jena — 4Jena Center for Soft Matter, Friedrich Schiller University Jena, 07743 Jena

The investigation of artificial molecular photo catalysts plays an important role in the development of novel energy sources. In this respect, the incorporation of photoactive compounds into nanomembranes is a promising approach for such applications in the field of light harvesting and electron transfer. Ruthenium-complexes are well-known photo-sensitizers and photocatalysts, which facilitate the utilization of light energy by electron transfer to/from the actual catalyst. The preparation of photoactive nanomembranes requires selective immobilization of these species on the nanomembrane surface. Here we present various immobilization strategies of ruthenium-II-photosensitizers on 1 nm thick carbon nanomembranes (CNMs). We use thiol-ene click reactions and amide-bond formation via active esters to couple the complexes to the CNM. Alternatively the metal-capturing unit was formed intrinsically by the crosslinked self-assembled monolayer units. The functionalized CNMs have been characterized by means of X-ray photoelectron spectroscopy as well as atomic force and optical microscopy.

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