Photophysics of excitation energy transfer in highly fluorescent polymers

M. Wohlgenannt; W. Graupner; F.P. Wenzl; S. Tasch; E.J.W. List; G. Leising; M. Graupner; A. Hermetter; U. Rohr; P. Schlichting; Y. Geerts; U. Scherf; K. Müllen

doi:10.1016/S0301-0104(97)00281-4

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Photophysics of excitation energy transfer in highly fluorescent polymers

Journal article

Peer reviewed

Photophysics of excitation energy transfer in highly fluorescent polymers

M. Wohlgenannt, W. Graupner, F.P. Wenzl, S. Tasch, E.J.W. List, G. Leising, M. Graupner, A. Hermetter, U. Rohr, P. Schlichting, …

Chemical physics, Vol.227(1), pp.99-109

02/01/1998

DOI: 10.1016/S0301-0104(97)00281-4

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Abstract

We report the optical properties of highly fluorescent guest host systems of two conjugated polymers. The blue emitter laddertype poly(para-phenylene) (LPPP) is blended as a host with the red emitter poly(perylene-co-diethynylbenzene) (PPDB) as a guest at sub-percent and percent level concentrations. We use transient and steady-state photoluminescence as well as near-steady-state photoinduced absorption to show that an efficient excitation energy transfer of Förster type occurs between the blue emitting host and the red emitting guest. The spectral signatures of emissive and absorptive photogenerated species in both polymers are presented. In addition, we describe analytical relations to determine the lifetime of these species from photomodulation spectroscopy.

Excitation energy transfer

Förster transfer

Photoinduced absorption

Photoluminescence

Details

Title: Subtitle: Photophysics of excitation energy transfer in highly fluorescent polymers
Creators: M. Wohlgenannt - Graz University of Technology
W. Graupner - Graz University of Technology
F.P. Wenzl - Graz University of Technology
S. Tasch - Graz University of Technology
E.J.W. List - Institut für Festkörperphysik, Technische Universität Graz, Petersgasse 16, Graz, Austria
G. Leising - Graz University of Technology
M. Graupner - Graz University of Technology
A. Hermetter - Graz University of Technology
U. Rohr - Max Planck Institute for Polymer Research
P. Schlichting - Max Planck Institute for Polymer Research
Y. Geerts - Max Planck Institute for Polymer Research
U. Scherf - Max Planck Institute for Polymer Research
K. Müllen - Max Planck Institute for Polymer Research
Resource Type: Journal article
Publication Details: Chemical physics, Vol.227(1), pp.99-109
Publisher: Elsevier B.V
DOI: 10.1016/S0301-0104(97)00281-4
ISSN: 0301-0104
Language: English
Date published: 02/01/1998
Academic Unit: Physics and Astronomy
Record Identifier: 9984428786202771

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