En route towards panchromatic light harvesting: Photophysical and electrochemical properties of Bodipy-porphyrazine conjugates
Kuhri S, Engelhardt V, Faust R, Guldi DM (2014)
Publication Type: Journal article
Publication year: 2014
Journal
Book Volume: 5
Pages Range: 2580-2588
Journal Issue: 6
DOI: 10.1039/c4sc00326h
Abstract
The concept of panchromatic light harvesting, that is, broad absorption cross sections throughout most of the visible range and excited state funnelling, has been realized in a novel set of porphyrazines. On one hand, zinc, copper, or magnesium ions were complexed by porphyrazines to tune their ground and excited state features. On the other hand, up to eight Bodipys were covalently attached to the periphery of the porphyrazines to enhance the ground state absorption. The corresponding star-shaped conjugates were probed by advanced photophysical measurements, that is, time-resolved fluorescence and femtosecond transient absorption spectroscopy. From the latter we derive spectroscopic and kinetic evidence in support of a fast and unidirectional energy transfer from the photoexcited Bodipy at the periphery to the porphyrazine at the core. In addition, the impact of the different metal centers is demonstrated. This journal is © the Partner Organisations 2014.
Authors with CRIS profile
Susanne Kuhri
Lehrstuhl für Physikalische Chemie I
Dirk Michael Guldi
Lehrstuhl für Physikalische Chemie I
Involved external institutions
Germany (DE)How to cite
APA:
Kuhri, S., Engelhardt, V., Faust, R., & Guldi, D.M. (2014). En route towards panchromatic light harvesting: Photophysical and electrochemical properties of Bodipy-porphyrazine conjugates. Chemical Science, 5(6), 2580-2588. https://doi.org/10.1039/c4sc00326h
MLA:
Kuhri, Susanne, et al. "En route towards panchromatic light harvesting: Photophysical and electrochemical properties of Bodipy-porphyrazine conjugates." Chemical Science 5.6 (2014): 2580-2588.
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