title: Emission of a single conjugated polymer chain isolated in its single crystal monomer matrix.
abstract: The excitonic luminescence of a highly ordered single conjugated polymer chain is studied by microphotoluminescence. At T< or =10 K it consists of a single Lorentzian line. The linewidth increases linearly with T between 6 and 60 K, from 350 microeV at 6 K, indicating a pure dephasing time of approximately 2 ps. Above 10 K, other neighboring regions along the chain direction start to emit at a slightly higher (by approximately 1 meV) energy. This indicates very small inhomogeneous broadening, very long chains ( > or =10 microm), and a long range and very rapid exciton energy transfer ( >10 microm in <100 ps).
authors.affiliation: Groupe de Physique des Solides, UMR 7588 of CNRS, Universités Paris 6 and Paris 7, Tour 23, 2 Place Jussieu, 75251 Paris Cedex 05, France.
authors.forename: T
authors.initials: T
authors.lastname: Guillet
authors.forename: J
authors.initials: J
authors.lastname: Berréhar
authors.forename: R
authors.initials: R
authors.lastname: Grousson
authors.forename: J
authors.initials: J
authors.lastname: Kovensky
authors.forename: C
authors.initials: C
authors.lastname: Lapersonne-Meyer
authors.forename: M
authors.initials: M
authors.lastname: Schott
authors.forename: V
authors.initials: V
authors.lastname: Voliotis