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Molecular Chromophore-DNA Architectures With Fullerenes: Optical Properties and Solar Cells

Müller, Sara; Manger, Felix; Graf von Reventlow, Lorenz; Colsmann, Alexander; Wagenknecht, Hans-Achim

Abstract:
Supramolecular chemistry allows the construction of complex molecular architectures and the design of collective photophysical properties. DNA is an attractive template to build such supramolecular architectures due to its helical structure, the defined distances between the bases and the canonical base pairing that results in precise control of the chromophore position. The tailored properties of DNA-templated supramolecules eventually allow their implementation into optoelectronic applications. For the generation of free charge carriers from photo-generated excitons, fullerenes can be utilized. We synthesized two fullerene derivates, one of which binds by electrostatic interactions to single-stranded DNA, while the other contains two 2′-deoxyuridine moieties and assembles specifically along oligo-2′-deoxyadenosines (dA20) as DNA template. The DNA-directed assembly of both fullerenes in aqueous solution was investigated by UV/Vis absorbance and circular dichroism (CD) spectroscopy. The specific interactions with DNA make fullerenes with the 2′-deoxyuridine moieties a significantly better component for supramolecular DNA architectures. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000130917
Veröffentlicht am 25.03.2021
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Organische Chemie (IOC)
Materialwissenschaftliches Zentrum für Energiesysteme (MZE)
Lichttechnisches Institut (LTI)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2296-2646
KITopen-ID: 1000130917
Erschienen in Frontiers in Chemistry
Verlag Frontiers Media
Band 9
Seiten Art.-Nr.: 645006
Nachgewiesen in Web of Science
Scopus
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