Electronic coupling responsible for energy transfer in columnar liquid crystals

Dimitra Markovitsi, Sylvie Marguet, Lazaros K. Gallos, Hervé Sigal, Philippe Millié, Panos Argyrakis, Helmut Ringsdorf, Sandeep Kumar

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Electronic coupling is the driving force for energy transfer in molecular materials and consists of several components. We determine the strength of dipolar/multipolar coupling and coupling due to orbital overlap for excitation transport in triphenylene columnar liquid crystals. We use time-resolved fluorescence spectroscopy and computer simulations. The fit of the experimental and simulated fluorescence decays reveals that the transfer process is dominated by short range interactions (multipolar and orbital overlap) but the contribution of long range dipolar interactions cannot be neglected.

Original languageEnglish (US)
Pages (from-to)163-167
Number of pages5
JournalChemical Physics Letters
Volume306
Issue number3-4
DOIs
StatePublished - Jun 11 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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