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Picosecond excitation energy relaxation processes in a ladder-type π-conjugated polymer

Title data

Hildner, Richard ; Lemmer, Ulrich ; Scherf, Ullrich ; Köhler, Jürgen:
Picosecond excitation energy relaxation processes in a ladder-type π-conjugated polymer.
In: Chemical Physics Letters. Vol. 429 (2006) Issue 1-3 . - pp. 103-108.
ISSN 1873-4448
DOI: https://doi.org/10.1016/j.cplett.2006.08.001

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

We studied the relaxation dynamics of excitations in the lowest electronically excited singlet state in a ladder-type p-conjugated polymer employing picosecond time-resolved spectroscopy with high spectral resolution. At 1.5 K both the decay dynamics and the rising component of the fluorescence transients from the low-energy tail of the distribution of excited states show a strong dependence on time and on the precise emission wavelength. At room temperature, in contrast, such dependencies are not observed. Finally, the data allow us to retrieve the radiative lifetime of the excited states both at 1.5 K and 296 K.

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
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
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 28 Apr 2017 08:52
Last Modified: 28 Apr 2017 08:52
URI: https://eref.uni-bayreuth.de/id/eprint/36890