6533b837fe1ef96bd12a1efd

RESEARCH PRODUCT

Energy transfer rates and pathways of single donor chromophores in a multichromophoric dendrimer built around a central acceptor core.

Rémi MétivierTanja WeilFlorian KulzerThomas BaschéKlaus Müllen

subject

ChemistryQuantum yieldGeneral ChemistryChromophorePhotochemistryBiochemistryAcceptorCatalysisFluorescence spectroscopyCore (optical fiber)Colloid and Surface ChemistryDendrimerSpectroscopyExcitation

description

An artificial light-harvesting dendrimer showing highly efficient electronic excitation energy transfer from four peripheral donors to one central acceptor has been investigated by single-molecule spectroscopy at low temperatures. Confocal imaging in combination with frequency selective excitation spectroscopy gives direct access to energy transfer rates of individual donors and allows the determination of energy transfer pathways within a single multichromophoric aggregate.

yearjournalcountryeditionlanguage
2004-10-16Journal of the American Chemical Society
10.1021/ja047996ohttps://pubmed.ncbi.nlm.nih.gov/15521750