title: Spectroscopy of 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) attached to rare gas samples: clusters vs. bulk matrices. II. Fluorescence emission spectroscopy.
abstract: The interaction between 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) molecules and solid rare gas samples is studied by means of fluorescence emission spectroscopy. Laser-excited PTCDA-doped large argon, neon, and para-hydrogen clusters along with PTCDA embedded in helium nanodroplets are spectroscopically characterized with respect to line broadening and shifting. A fast non-radiative relaxation is observed before a radiative decay in the electronic ground state takes place. In comparison, fluorescence emission studies of PTCDA embedded in bulk neon and argon matrices result in much more complex spectral signatures characterized by a splitting of the different emission lines. These can be assigned to the appearance of site isomers of the surrounding matrix lattice structure.
authors.affiliation: Physikalisches Institut, Universität Freiburg, Hermann-Herder-Str. 3, D-79104 Freiburg, Germany.
authors.forename: Matthieu
authors.initials: M
authors.lastname: Dvorak
authors.forename: Markus
authors.initials: M
authors.lastname: Müller
authors.forename: Tobias
authors.initials: T
authors.lastname: Knoblauch
authors.forename: Oliver
authors.initials: O
authors.lastname: Bünermann
authors.forename: Alexandre
authors.initials: A
authors.lastname: Rydlo
authors.forename: Stefan
authors.initials: S
authors.lastname: Minniberger
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Harbich
authors.forename: Frank
authors.initials: F
authors.lastname: Stienkemeier