Journal article

Self-absorption and luminescence quantum yields of dye-zeolite L composites

  • Devaux, André Department of Chemistry, University of Fribourg, Switzerland
  • Calzaferri, Gion Department of Chemistry and Biochemistry, University of Bern, Switzerland
  • Miletto, Ivana Department of Chemistry, University of Fribourg, Switzerland
  • Cao, Pengpeng Department of Chemistry, University of Fribourg, Switzerland
  • Belser, Peter Department of Chemistry, University of Fribourg, Switzerland
  • Brühwiler, Dominik Institute of Chemistry and Biological Chemistry, Zürich University of Applied Sciences, Wädenswil, Switzerland
  • Khorev, Oleg Department of Chemistry and Biochemistry, University of Bern, Switzerland
  • Häner, Robert Department of Chemistry and Biochemistry, University of Bern, Switzerland
  • Kunzmann, Andreas Optical Additives GmbH, Gümligen, Switzerland
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    07.11.2013
Published in:
  • The Journal of Physical Chemistry C. - 2013, vol. 117, no. 44, p. 23034–23047
English Electronic absorption and fluorescence spectra based on transmission measurements of thin layers obtained from new perylene–zeolite L composites and new dye1,dye2–zeolite L sandwich composites, the latter acting as antenna systems, have been investigated and analyzed. The influence of extra- and intraparticle self-absorption on the spectral shape and fluorescence quantum yield is discussed in detail. Due to its intraparticle origin, self-absorption and re-emission can often not be avoided in organized systems such as dye–zeolite L composites where a high density of chromophores is a prerequisite for obtaining the desired photophysical properties. We show, however, that it can be avoided or at least minimized by preparing dye1,dye2–zeolite L sandwich composites where donors are present in a much larger amount than the acceptors because they act as antenna systems.
Faculty
Faculté des sciences et de médecine
Department
Département de Chimie
Language
  • English
Classification
Chemistry
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/303181
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