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Self-assemblies of novel magnesium porphyrins mimicking natural chlorosomal bacteriochlorophylls

Szmytkowski, J.; Conradt, J.; Kuhn, H.; Reddy, C.M.; Balaban, M.C.; Balaban, T.S.; Kalt, H.

Self-assembling porphyrins are promising materials to mimic natural bacteriochlorophylls c, d, or e encountered in the chlorosomes of photosynthetic bacteria. We have studied four novel magnesium porphyrins mimicking this chlorosomal antenna system. In contrast to previous articles reporting synthetic Zn-porphyrins, our studies focus on porphyrins with Mg as the central atom, which mimic more closely the natural bacteriochlorophylls. The analysis of time-resolved photoluminescence dynamics based on the decay-associated emission spectra shows a short-lived component associated with the supramolecular architecture. It confirms the ordered nature of the investigated porphyrins and suggests that these self-assemblies can be used as artificial antennae in light-harvesting devices like biomimetic solar cells.

Zugehörige Institution(en) am KIT Institut für Angewandte Physik (APH)
Publikationstyp Zeitschriftenaufsatz
Jahr 2011
Sprache Englisch
Identifikator ISSN: 1932-7447
KITopen ID: 1000027112
Erschienen in Journal of Physical Chemistry C: Nanomaterials and Interfaces
Band 115
Heft 17
Seiten 8832-8839
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