Title: Self-absorption and luminescence quantum yields of dye-zeolite L composites
Authors : Devaux, André
Calzaferri, Gion
Miletto, Ivana
Cao, Pengpeng
Belser, Peter
Brühwiler, Dominik
Khorev, Oleg
Häner, Robert
Kunzmann, Andreas
Published in : The Journal of Physical Chemistry Part C
Volume(Issue) : 117
Issue : 44
Pages : 23034
Pages to: 23047
Publisher / Ed. Institution : American Chemical Society
Issue Date: 2013
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (Publication)
Language : English
Subjects : Solid; Luminescence; Dye; Zeolite
Subject (DDC) : 540: Chemistry
Abstract: 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.
Departement: Life Sciences und Facility Management
Organisational Unit: Institute of Chemistry and Biotechnology (ICBT)
Publication type: Article in scientific Journal
DOI : 10.1021/jp408556g
ISSN: 1932-7447
URI: https://digitalcollection.zhaw.ch/handle/11475/2612
Published as part of the ZHAW project : Langzeitstabilität von eingebetteten ZeoFRET-Komposita
Appears in Collections:Publikationen Life Sciences und Facility Management

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