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Panchromatic light funneling through the synergy in hexabenzocoronene–(metallo)porphyrin–fullerene assemblies to realize the separation of charges

Here, we present a novel butadiyne-linked HBC-ethynyl-porphyrin dimer, which exhibits in the ground state strong absorption cross sections throughout the UV and visible ranges of the solar spectrum. In short, a unidirectional flow of excited state energy from the HBC termini to the (metallo)porphyri...

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Autores principales: Wolf, Maximilian, Lungerich, Dominik, Bauroth, Stefan, Popp, Maximilian, Platzer, Benedikt, Clark, Timothy, Anderson, Harry L., Jux, Norbert, Guldi, Dirk M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8159381/
https://www.ncbi.nlm.nih.gov/pubmed/34122999
http://dx.doi.org/10.1039/d0sc02028a
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author Wolf, Maximilian
Lungerich, Dominik
Bauroth, Stefan
Popp, Maximilian
Platzer, Benedikt
Clark, Timothy
Anderson, Harry L.
Jux, Norbert
Guldi, Dirk M.
author_facet Wolf, Maximilian
Lungerich, Dominik
Bauroth, Stefan
Popp, Maximilian
Platzer, Benedikt
Clark, Timothy
Anderson, Harry L.
Jux, Norbert
Guldi, Dirk M.
author_sort Wolf, Maximilian
collection PubMed
description Here, we present a novel butadiyne-linked HBC-ethynyl-porphyrin dimer, which exhibits in the ground state strong absorption cross sections throughout the UV and visible ranges of the solar spectrum. In short, a unidirectional flow of excited state energy from the HBC termini to the (metallo)porphyrin focal points enables concentrating light at the latter. Control over excitonic interactions within, for example, the electron-donating porphyrin dimers was realized by complexation of bidentate ligands to set up panchromatic absorption that extends all the way into the near-infrared range. The bidentate binding motif was then exploited to create a supramolecular electron donor–acceptor assembly based on a HBC-ethynyl-porphyrin dimer and an electron accepting bis(aminoalkyl)-substituted fullerene. Of great relevance is the fact that charge separation from the photoexcited HBC-ethynyl-porphyrin dimer to the bis(aminoalkyl)-substituted fullerene is activated not only upon photoexciting the HBCs in the UV as well as the (metallo)porphyrins in the visible but also in the NIR. Implicit is the synergetic interplay of energy and charge transfer in a photosynthetic mimicking manner. The dimer and bis-HBC-ethynyl-porphyrin monomers, which serve as references, were probed by means of steady-state as well as time-resolved optical spectroscopies, including global target analyses of the time-resolved transient absorption data.
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spelling pubmed-81593812021-06-11 Panchromatic light funneling through the synergy in hexabenzocoronene–(metallo)porphyrin–fullerene assemblies to realize the separation of charges Wolf, Maximilian Lungerich, Dominik Bauroth, Stefan Popp, Maximilian Platzer, Benedikt Clark, Timothy Anderson, Harry L. Jux, Norbert Guldi, Dirk M. Chem Sci Chemistry Here, we present a novel butadiyne-linked HBC-ethynyl-porphyrin dimer, which exhibits in the ground state strong absorption cross sections throughout the UV and visible ranges of the solar spectrum. In short, a unidirectional flow of excited state energy from the HBC termini to the (metallo)porphyrin focal points enables concentrating light at the latter. Control over excitonic interactions within, for example, the electron-donating porphyrin dimers was realized by complexation of bidentate ligands to set up panchromatic absorption that extends all the way into the near-infrared range. The bidentate binding motif was then exploited to create a supramolecular electron donor–acceptor assembly based on a HBC-ethynyl-porphyrin dimer and an electron accepting bis(aminoalkyl)-substituted fullerene. Of great relevance is the fact that charge separation from the photoexcited HBC-ethynyl-porphyrin dimer to the bis(aminoalkyl)-substituted fullerene is activated not only upon photoexciting the HBCs in the UV as well as the (metallo)porphyrins in the visible but also in the NIR. Implicit is the synergetic interplay of energy and charge transfer in a photosynthetic mimicking manner. The dimer and bis-HBC-ethynyl-porphyrin monomers, which serve as references, were probed by means of steady-state as well as time-resolved optical spectroscopies, including global target analyses of the time-resolved transient absorption data. The Royal Society of Chemistry 2020-06-17 /pmc/articles/PMC8159381/ /pubmed/34122999 http://dx.doi.org/10.1039/d0sc02028a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Wolf, Maximilian
Lungerich, Dominik
Bauroth, Stefan
Popp, Maximilian
Platzer, Benedikt
Clark, Timothy
Anderson, Harry L.
Jux, Norbert
Guldi, Dirk M.
Panchromatic light funneling through the synergy in hexabenzocoronene–(metallo)porphyrin–fullerene assemblies to realize the separation of charges
title Panchromatic light funneling through the synergy in hexabenzocoronene–(metallo)porphyrin–fullerene assemblies to realize the separation of charges
title_full Panchromatic light funneling through the synergy in hexabenzocoronene–(metallo)porphyrin–fullerene assemblies to realize the separation of charges
title_fullStr Panchromatic light funneling through the synergy in hexabenzocoronene–(metallo)porphyrin–fullerene assemblies to realize the separation of charges
title_full_unstemmed Panchromatic light funneling through the synergy in hexabenzocoronene–(metallo)porphyrin–fullerene assemblies to realize the separation of charges
title_short Panchromatic light funneling through the synergy in hexabenzocoronene–(metallo)porphyrin–fullerene assemblies to realize the separation of charges
title_sort panchromatic light funneling through the synergy in hexabenzocoronene–(metallo)porphyrin–fullerene assemblies to realize the separation of charges
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8159381/
https://www.ncbi.nlm.nih.gov/pubmed/34122999
http://dx.doi.org/10.1039/d0sc02028a
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