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Pressure Dependence of Photoluminescence of Oligothiophenes

Published online by Cambridge University Press:  10 February 2011

L. Rossi ,
W. Graupner ,
R. Resel ,
F. Meghdadi ,
G. Leising ,
F. Sannicolo' ,
T. Benincori ,
G. Lanzani  and
R. Tubino
L. Rossi
Affiliation:
Istituto Nazionale per la Fisica della Materia (Italy). Dipartimento di Fisica “A. Volta,”Università di Pavia, Pavia (Italy).
W. Graupner
Affiliation:
Institut für Festkörperphysik, Technische Universität Graz, Graz (Austria)
R. Resel
Affiliation:
Institut für Festkörperphysik, Technische Universität Graz, Graz (Austria)
F. Meghdadi
Affiliation:
Institut für Festkörperphysik, Technische Universität Graz, Graz (Austria)
G. Leising
Affiliation:
Institut für Festkörperphysik, Technische Universität Graz, Graz (Austria)
F. Sannicolo'
Affiliation:
Dipartimento di Chimica Organica ed Industriale, Università di Milano, Milano (Italy).
T. Benincori
Affiliation:
Dipartimento di Chimica Organica ed Industriale, Università di Milano, Milano (Italy).
G. Lanzani
Affiliation:
Istituto Nazionale per la Fisica della Materia (Italy). Istituto di Matematica e Fisica, Università di Sassari, Sassari (Italy).
R. Tubino
Affiliation:
Istituto Nazionale per la Fisica della Materia (Italy). Dipartimento di Scienze dei Materiali, Università di Milano, Milano (Italy).
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Abstract

We report on the nature of emitting states in two different quaterthiophenes: the unsubstituted quaterthiophenes (T4) and a bridged T4 (T4B), where the bridging have been realized by introducing a second bond between the two central thiophene rings. The effect of the chemical bridging on the photophysics of these compounds have been studied via photoluminescence measurements under hydrostatic pressure, which permit to clarify the influence of interchain coupling, conformational effects and intrachain structural changes on the optical properties.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 488: Symposium J – Electrical, Optical & Magnetic Properties of Organic IV , 1997 , 897
Copyright
Copyright © Materials Research Society 1998

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