Coherent Electronic Coupling versus Localization in Individual Molecular Dimers

Markus Lippitz; Christian G. Hübner; Thomas Christ; Holger Eichner; Patrice Bordat; Andreas Herrmann; Klaus Müllen; Thomas Basché

doi:10.1103/PhysRevLett.92.103001

Coherent Electronic Coupling versus Localization in Individual Molecular Dimers

Markus Lippitz^*, Christian G. Hübner, Thomas Christ, Holger Eichner, Patrice Bordat, Andreas Herrmann, Klaus Müllen, Thomas Basché

^*Corresponding author for this work

Institute of Physics

72 Citations (Scopus)

Abstract

The electronic excitation transfer and coherent electronic coupling strength were investigated in molecular dimers by spectrally resolved confocal fluorescence spectroscopy. The direct probe of electronic coupling strength distribution was possible due to static disorder in polymer host by single molecule measurements. The dimers with delocalized excitation were also found in comparison to emission originated from localized states. The delocalized and localized state transitions were observed for dimers which were attributed to structural fluctuations of guest-host system.

Original language	English
Article number	103001
Journal	Physical Review Letters
Volume	92
Issue number	10
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.92.103001
Publication status	Published - 12.03.2004

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10.1103/PhysRevLett.92.103001

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abstract = "The electronic excitation transfer and coherent electronic coupling strength were investigated in molecular dimers by spectrally resolved confocal fluorescence spectroscopy. The direct probe of electronic coupling strength distribution was possible due to static disorder in polymer host by single molecule measurements. The dimers with delocalized excitation were also found in comparison to emission originated from localized states. The delocalized and localized state transitions were observed for dimers which were attributed to structural fluctuations of guest-host system.",

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AU - Lippitz, Markus

AU - Hübner, Christian G.

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AU - Eichner, Holger

AU - Bordat, Patrice

AU - Herrmann, Andreas

AU - Müllen, Klaus

AU - Basché, Thomas

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AB - The electronic excitation transfer and coherent electronic coupling strength were investigated in molecular dimers by spectrally resolved confocal fluorescence spectroscopy. The direct probe of electronic coupling strength distribution was possible due to static disorder in polymer host by single molecule measurements. The dimers with delocalized excitation were also found in comparison to emission originated from localized states. The delocalized and localized state transitions were observed for dimers which were attributed to structural fluctuations of guest-host system.

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Coherent Electronic Coupling versus Localization in Individual Molecular Dimers

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