Effect of Temperature on Triplet Exciton Migration in Langmuir-Blodgett Films

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4 Citations (Scopus)

Abstract

The effect of temperature on delayed annihilation fluorescence of aromatic molecules in Langmuir-Blodgett films has been studied. It is shown that because of the inhomogeneous broadening of energy levels caused by local nonuniformities in the film structure, the migration efficiency of triplet excitons is temperature dependent. Experimental data were used to calculate the scatter in the triplet level energies of the anthracene, 1,2-benzanthracene, and fluoranthene molecules.

Original languageEnglish
Pages (from-to)242-243
Number of pages2
JournalOptics and Spectroscopy (English translation of Optika i Spektroskopiya)
Volume93
Issue number2
DOIs
Publication statusPublished - 1 Aug 2002
Externally publishedYes

Fingerprint

Langmuir Blodgett films
Langmuir-Blodgett films
Excitons
Electron energy levels
energy levels
excitons
Molecules
Anthracene
anthracene
nonuniformity
molecules
Fluorescence
fluorescence
Temperature
temperature
LDS 751
benz(a)anthracene
fluoranthene

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

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abstract = "The effect of temperature on delayed annihilation fluorescence of aromatic molecules in Langmuir-Blodgett films has been studied. It is shown that because of the inhomogeneous broadening of energy levels caused by local nonuniformities in the film structure, the migration efficiency of triplet excitons is temperature dependent. Experimental data were used to calculate the scatter in the triplet level energies of the anthracene, 1,2-benzanthracene, and fluoranthene molecules.",
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AB - The effect of temperature on delayed annihilation fluorescence of aromatic molecules in Langmuir-Blodgett films has been studied. It is shown that because of the inhomogeneous broadening of energy levels caused by local nonuniformities in the film structure, the migration efficiency of triplet excitons is temperature dependent. Experimental data were used to calculate the scatter in the triplet level energies of the anthracene, 1,2-benzanthracene, and fluoranthene molecules.

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