Energy transfer in organic dendrimer antenna funnel and anti-funnel supermolecules

Stephen F. Swallen, Raoul Kopelman, Jeffrey S. Moore

Research output: Contribution to journalConference articlepeer-review


The photophysics of exciton localization and energy transfer are examined in two unique classes of phenylacetylene dendrimers. One set of supermolecules is observed to efficiently and rapidly funnel absorbed radiation toward the molecular locus, while a slight change in molecular structure creates an effective 'anti-funnel', greatly reducing the efficiency of energy trapping. Lifetime-based and steady state fluorescence studies are used to determine the rates of intramolecular energy transfer and to glean information on molecular geometry and intermolecular interactions in two solvents.

Original languageEnglish (US)
Pages (from-to)311-318
Number of pages8
JournalMaterials Research Society Symposium - Proceedings
StatePublished - 1999
EventProceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998' - Boston, MA, USA
Duration: Nov 30 1998Dec 3 1998

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • General Materials Science


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