6533b7d1fe1ef96bd125d768

RESEARCH PRODUCT

Coherent Electronic Coupling versus Localization in Individual Molecular Dimers

Holger EichnerChristian G. HübnerAndreas HerrmannT. ChristPatrice BordatKlaus MüllenMarkus LippitzThomas Basché

subject

chemistry.chemical_classificationMaterials scienceDimerConfocalGeneral Physics and Astronomy02 engineering and technologyPolymer010402 general chemistry021001 nanoscience & nanotechnology01 natural sciences0104 chemical sciencesCoupling (electronics)chemistry.chemical_compoundDelocalized electronchemistryFluorescence microscopePhysics::Atomic and Molecular ClustersMolecule[CHIM]Chemical SciencesAtomic physics0210 nano-technologyExcitation

description

International audience; 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.

10.1103/physrevlett.92.103001https://hal.archives-ouvertes.fr/hal-01567185