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
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- English
- Classification
- Chemistry
- License
- License undefined
- Identifiers
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- RERO DOC 205495
- DOI 10.1021/jp408556g
- Persistent URL
- https://folia.unifr.ch/unifr/documents/303181
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