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Electronic Properties of Poly(Para-Phenylenes) Under High Pressure

Published online by Cambridge University Press:  10 February 2011

W. Graupner ,
S. Guha ,
S. Yang ,
M. Chandrasekhar ,
H. R. Chandrasekhar ,
G. Leising ,
U. Scherf  and
K. Müllen
W. Graupner
Affiliation:
Institut für Festkörperphysik, Technische Universität Graz, A-8010 Graz, Austria.
S. Guha
Affiliation:
Department of Physics & Astronomy, University of Missouri, MO 65211 Columbia , USA
S. Yang
Affiliation:
Department of Physics & Astronomy, University of Missouri, MO 65211 Columbia , USA
M. Chandrasekhar
Affiliation:
Department of Physics & Astronomy, University of Missouri, MO 65211 Columbia , USA
H. R. Chandrasekhar
Affiliation:
Department of Physics & Astronomy, University of Missouri, MO 65211 Columbia , USA
G. Leising
Affiliation:
Institut für Festkörperphysik, Technische Universität Graz, A-8010 Graz, Austria.
U. Scherf
Affiliation:
Max-Planck-Institut für Polymerforschung, D-55128 Mainz, Germany.
K. Müllen
Affiliation:
Max-Planck-Institut für Polymerforschung, D-55128 Mainz, Germany.
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Abstract

We have studied the photoluminescence emission spectra of polycrystalline and amorphous powder samples of phenylene-type polymers and oligomers. In order to modulate both intrachain and interchain interactions these investigations were performed at hydrostatic pressures up to 70 kbar and in a tOmperature range of 20 to 300 K. We report characteristic changes of the emission spectrum which depend on both the molecular environment as well as the intramolecular bond configuration.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 488: Symposium J – Electrical, Optical & Magnetic Properties of Organic IV , 1997 , 873
Copyright
Copyright © Materials Research Society 1998

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References

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