Excitation energy transfer in molecular complexes: transport processes, optical properties and effects of nearby placed metal nano-particles

Volkhard May; Jörg Megow; Iaroslav Zelinskyi

doi:10.1117/12.921532

30 April 2012 Excitation energy transfer in molecular complexes: transport processes, optical properties and effects of nearby placed metal nano-particles

Volkhard May, Jörg Megow, Iaroslav Zelinskyi

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Proceedings Volume 8424, Nanophotonics IV; 842403 (2012) https://doi.org/10.1117/12.921532
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

Excitation energy transfer (EET) in molecular systems is studied theoretically. Chromophore complexes are considered which are formed by a butanediamine dendrimer with four pheophorbide-a molecules. To achieve a description with an atomic resolution and to account for the effect of an ethanol solvent a mixed quantum classical methodology is utilized. Details of the EET and spectra of transient anisotropy showing signatures of EET are presented. A particular control of intermolecular EET is achieved by surface plasmons of nearby placed metal nanoparticles (MNP). To attain a quantum description of the molecule-MNP system a microscopic theory is introduced. As a particular application surface plasmon affected absorption spectra of molecular complexes placed in the proximity of a spherical MNP are discussed.

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Volkhard May, Jörg Megow, and Iaroslav Zelinskyi "Excitation energy transfer in molecular complexes: transport processes, optical properties and effects of nearby placed metal nano-particles", Proc. SPIE 8424, Nanophotonics IV, 842403 (30 April 2012); https://doi.org/10.1117/12.921532

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