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Magnetic Field Effect in Highly Pure, Highly Fluorescent Conjugated Polymers

Published online by Cambridge University Press:  10 February 2011

W. Graupner ,
M. Sacher ,
M. Graupner ,
C. Zenz ,
G. Grampp ,
A. Hermetter  and
G. Leising
W. Graupner
Affiliation:
Inst. f¨r Festkörperphysik, Techn. Univ. Graz, A-8010 Graz, Austria
M. Sacher
Affiliation:
Inst. für Physikalische & Theoretische Chemie, Techn. Univ. Graz, A-8010 Graz, Austria
M. Graupner
Affiliation:
Inst. für Biochemie & Lebensmittelchemie, Techn. Univ. Graz, A-8010 Graz, Austria
C. Zenz
Affiliation:
Inst. f¨r Festkörperphysik, Techn. Univ. Graz, A-8010 Graz, Austria
G. Grampp
Affiliation:
Inst. für Physikalische & Theoretische Chemie, Techn. Univ. Graz, A-8010 Graz, Austria
A. Hermetter
Affiliation:
Inst. für Biochemie & Lebensmittelchemie, Techn. Univ. Graz, A-8010 Graz, Austria
G. Leising
Affiliation:
Inst. f¨r Festkörperphysik, Techn. Univ. Graz, A-8010 Graz, Austria
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Abstract

We report on the magnetic field effect (MFE) on the photoluminescence in films of a highly fluorescent conjugated laddertype poly(paraphenylene) (LPPP). We observe no MFE for the pure material, however, the introduction of a very small content of chemical defects via photo-oxidation leads to a MFE proportional to the amount of defects. The chemically induced increase in MFE is correlated with a change in other properties of the LPPP films, such as photoluminescence emission and excitation spectra, transient photoluminescence and infrared spectra.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 488: Symposium J – Electrical, Optical & Magnetic Properties of Organic IV , 1997 , 789
Copyright
Copyright © Materials Research Society 1998

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References

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