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Continuous-Wave Two-Photon Spectroscopy on a Ladder-Type Conjugated Polymer

Title data

Hildner, Richard ; Lemmer, Ulrich ; Scherf, Ullrich ; Köhler, Jürgen:
Continuous-Wave Two-Photon Spectroscopy on a Ladder-Type Conjugated Polymer.
In: Chemical Physics Letters. Vol. 448 (2007) Issue 4-6 . - pp. 213-217.
ISSN 1873-4448
DOI: https://doi.org/10.1016/j.cplett.2007.10.011

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

Employing continuous-wave two-photon fluorescence-excitation spectroscopy on a methyl-substituted ladder-type poly(para-phenylene) we studied the symmetry properties of the vibronic wave functions of the lowest electronically excited states and found that the symmetry selection rules for optical transitions are rather strictly fulfilled in this rigid, rod-like conjugated polymer. Additionally, these data allowed us to show that the energies of the predominant vibrational modes, the inter-ring stretching vibration and the aromatic ring CC stretching mode, are significantly lower in the second excited singlet state with respect to the corresponding energies in the first excited singlet state and in the electronic ground state.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Lehrstuhl Experimentalphysik IX - Spektroskopie weicher Materie
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Lehrstuhl Experimentalphysik IX - Spektroskopie weicher Materie > Lehrstuhl Experimentalphysik IX - Spektroskopie weicher Materie - Univ.-Prof. Dr. Jürgen Köhler
Profile Fields > Advanced Fields > Polymer and Colloid Science
Research Institutions > Research Centres > Bayreuth Institute of Macromolecular Research - BIMF
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 28 Apr 2017 09:10
Last Modified: 28 Apr 2017 09:10
URI: https://eref.uni-bayreuth.de/id/eprint/36888