Light-harvesting porphyrazines to enable intramolecular singlet fission

Medina DP, Papadopoulos I, Lavarda G, Gotfredsen H, Rami PR, Tykwinski RR, Rodríguez-Morgade MS, Guldi DM, Torres T (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Nanoscale Royal Society of Chemistry

Book Volume: 11

Pages Range: 22286-22292

Journal Issue: 46

DOI: 10.1039/c9nr08161e

Abstract

A porphyrazine featuring complementary absorption to a pentacene dimer was chosen to fill the absorption gap of the latter in the range of 450 to 600 nm to realize panchromatic absorption through the visible region out to ca. 700 nm. Of even greater relevance is the quantitative intramolecular Förster resonance energy transfer (i-FRET) to funnel energy to the pentacene moieties, where efficient intramolecular singlet fission (i-SF) converts the singlet excited state into the corresponding triplet excited states. Remarkably, the triplet quantum yield either via direct excitation or via indirect i-FRET is up to 200% ± 20% in polar solvents.

Authors with CRIS profile

Ilias Papadopoulos Lehrstuhl für Physikalische Chemie I Dirk Michael Guldi Lehrstuhl für Physikalische Chemie I

Involved external institutions

Universidad Autónoma de Madrid (UAM) ES Spain (ES) University of Copenhagen DK Denmark (DK) University of Alberta CA Canada (CA)

How to cite

APA:

Medina, D.P., Papadopoulos, I., Lavarda, G., Gotfredsen, H., Rami, P.R., Tykwinski, R.R.,... Torres, T. (2019). Light-harvesting porphyrazines to enable intramolecular singlet fission. Nanoscale, 11(46), 22286-22292. https://doi.org/10.1039/c9nr08161e

MLA:

Medina, Diana Paola, et al. "Light-harvesting porphyrazines to enable intramolecular singlet fission." Nanoscale 11.46 (2019): 22286-22292.

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