Studies of temperature-dependent excimer-monomer conversion in dendrimeric antenna supermolecules by fluorescence spectroscopy

Youfu Cao, Jeffrey S. Moore, Raoul Kopelman

Research output: Contribution to journalConference article

Abstract

Phenylacetylene (PA) dendrimer labeled with perylene (See Fig 1) is discovered to exhibit temperature-dependent emission spectra in certain organic solvents over the temperature range of 20-65°C. The monomer signal is increasing rapidly when temperature increases, while the excimer signal decreases slowly. Models of excimer formation and weakly associated pairs (M+M) dissociation dynamics are included, and the equilibrium constants at different temperatures are calculated. This behavior suggests potential applications in fluorescence-based thermometry.

Original languageEnglish (US)
Pages (from-to)T7.27.1-T7.27.6
JournalMaterials Research Society Symposium - Proceedings
Volume651
StatePublished - Dec 1 2001
EventDynamics in Small Confining Systems V - Boston, MA, United States
Duration: Nov 27 2000Nov 30 2000

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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