Self-absorption and luminescence quantum yields of dye-zeolite L composites
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Devaux, André
Department of Chemistry, University of Fribourg, Switzerland
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Calzaferri, Gion
Department of Chemistry and Biochemistry, University of Bern, Switzerland
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Miletto, Ivana
Department of Chemistry, University of Fribourg, Switzerland
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Cao, Pengpeng
Department of Chemistry, University of Fribourg, Switzerland
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Belser, Peter
Department of Chemistry, University of Fribourg, Switzerland
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Brühwiler, Dominik
Institute of Chemistry and Biological Chemistry, Zürich University of Applied Sciences, Wädenswil, Switzerland
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Khorev, Oleg
Department of Chemistry and Biochemistry, University of Bern, Switzerland
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Häner, Robert
Department of Chemistry and Biochemistry, University of Bern, Switzerland
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Kunzmann, Andreas
Optical Additives GmbH, Gümligen, Switzerland
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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.
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Faculty
- Faculté des sciences et de médecine
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Department
- Département de Chimie
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Language
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Classification
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Chemistry
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License
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License undefined
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Identifiers
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Persistent URL
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https://folia.unifr.ch/unifr/documents/303181
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