Efficient charge-transfer from diketopyrrolopyrroles to single-walled carbon nanotubes

Papadopoulos I, Menon A, Plass F, Molina D, Harreiß C, Kahnt A, Spiecker E, Sastre-Santos A, Guldi DM (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Nanoscale Royal Society of Chemistry

DOI: 10.1039/d1nr03105h

Abstract

In this contribution, the excited state charge-transfer interactions between single-walled carbon nanotubes (SWCNTs) and a variety of phenyl, 4-bromophenyl, and thiophene substituted diketopyrrolopyrroles (DPPs), is described. Atomic force microscopy (AFM) and aberration corrected high resolution transmission electron microscopy (AC-HRTEM) corroborated the successful formation of DPP/SWCNTs. Steady-state absorption, fluorescence, and Raman spectroscopies all gave insights into the impact on their ground and excited states as well as on the nature of their electronic communication/interaction. Of great value was time-resolved transient absorption spectroscopy on the femto- and nanosecond time-scales; it assisted in deciphering the charge-transfer mechanism from the DPPs to the SWCNT and in analyzing the dynamics thereof with transfer efficiencies of up to 81%. Important confirmation for the one-electron oxidized DPPs came from pulse radiolysis assays with focus on establishing their spectral fingerprints. Our full-fledged work demonstrates that the successful preparation of stable DPP/SWCNTs represents an important step towards establishing them as a viable alternative to porphyrin-based systems in emerging applications such as solar energy conversion.

Authors with CRIS profile

Ilias Papadopoulos Lehrstuhl für Physikalische Chemie I Arjun Menon Lehrstuhl für Physikalische Chemie I Fabian Plass Lehrstuhl für Physikalische Chemie I Christina Harreiß Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Erdmann Spiecker Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Dirk Michael Guldi Lehrstuhl für Physikalische Chemie I

Additional Organisation(s)

Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)

Involved external institutions

Miguel Hernández University of Elche (UMH) / Universidad Miguel Hernández de Elche ES Spain (ES) Leibniz-Institute für Oberflächenmodifizierung e. V. (IOM) / Leibniz Institute of Surface Modification DE Germany (DE)

How to cite

APA:

Papadopoulos, I., Menon, A., Plass, F., Molina, D., Harreiß, C., Kahnt, A.,... Guldi, D.M. (2021). Efficient charge-transfer from diketopyrrolopyrroles to single-walled carbon nanotubes. Nanoscale. https://doi.org/10.1039/d1nr03105h

MLA:

Papadopoulos, Ilias, et al. "Efficient charge-transfer from diketopyrrolopyrroles to single-walled carbon nanotubes." Nanoscale (2021).

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