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Multimodular Wide-Band Capturing Nanohybrids: Role of Carbon Nanotubes in Slowing Charge Recombination in Supramolecular C 60 -BisstyrylBODIPY-(Zinc Porphyrin) 2 Donor-Acceptor Molecular Cleft
Ist Teil von
Journal of the American Chemical Society, 2024-05, Vol.146 (19), p.13509
Ort / Verlag
United States
Erscheinungsjahr
2024
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
The importance of diameter-sorted single-wall carbon nanotubes (SWCNTs) noncovalently bound to a donor-acceptor
,
, in prolonging the lifetime of charge-separated states is successfully demonstrated. For this, using a multistep synthetic procedure, a wide-band capturing, multimodular, C
-bisstyrylBODIPY-(zinc porphyrin)
,
, was newly synthesized and shown to bind diameter-sorted SWCNTs. The
and its supramolecular assemblies were characterized by a suite of physicochemical techniques. Free-energy calculations suggested that both the (6,5) and (7,6) SWCNTs bound to
act as hole acceptors during the photoinduced sequential electron transfer events. Consequently, selective excitation of
in
:SWCNT hybrids revealed a two-step electron transfer, leading to the formation of charge-separated states. Due to the distant separation of the cation and anion radical species within the supramolecules, improved lifetimes of the charge-separated states could be achieved. The present supramolecular strategy of improving charge separation involving SWCNTs and donor-acceptor
highlights the potential application of these hybrid materials for various light energy harvesting and optoelectronic applications.
Sprache
Englisch
Identifikatoren
eISSN: 1520-5126
Titel-ID: cdi_pubmed_primary_38710108
Format
–
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