Journal article
Singlet Fission in Luminescent and Nonluminescent II-conjugated Polymers
Synthetic metals, Vol.101(1-3), pp.267-268
05/01/1999
DOI: 10.1016/S0379-6779(99)80002-2
Abstract
We have applied the action spectrum technique to the photoinduced absorption (PA) band of triplet excitons (TE) in luminescent polymers such as PPV and mLPPP, and nonluminescent polymers such as polydiacetylene (PDA), to obtain the TE photogeneration quantum effiency excitation spectra. In all three cases the TE photogeneration spectrum shows an onset at the optical gap, and in addition they also show a second photogeneration onset at excitation energies higher than the optical gap. This second onset is explained by singlet exciton fission into triplet pairs. We introduce a model to fit the spectra and obtain the TE energy as a fitting parameter.
Details
- Title: Subtitle
- Singlet Fission in Luminescent and Nonluminescent II-conjugated Polymers
- Creators
- M. Wohlgenannt - University of UtahW. Graupner - Graz University of TechnologyR. Österbacka - Åbo Akademi UniversityG. Leising - Graz University of TechnologyD. Comoretto - University of GenoaZ.V. Vardeny - University of Utah
- Resource Type
- Journal article
- Publication Details
- Synthetic metals, Vol.101(1-3), pp.267-268
- Publisher
- Elsevier B.V
- DOI
- 10.1016/S0379-6779(99)80002-2
- ISSN
- 0379-6779
- eISSN
- 1879-3290
- Language
- English
- Date published
- 05/01/1999
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984429050102771
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