Excitation energy transfer of a bichromophoric cross-shaped molecule investigated by polarized fluorescence spectroscopy
- The excitation energy transfer (EET) of a bichromophoric cross-shaped molecule was investigated by stationary polarized fluorescence spectroscopy in the solid state. For this purpose 2,2[prime],7,7[prime]-tetrakis(biphenyl-4-yl)-9,9[prime]-spirobifluorene was embedded in a polymeric bisphenol-A-polycarbonate (PC) matrix. The dependence of the fluorescence on concentration and wavelength was determined. The role of the intermolecular and intramolecular EET is dealt with separately and discussed by means of the degree of polarization. The intermolecular excitation energy transfer is described in terms of a Förster transfer mechanism. The intramolecular transfer is prevented for the zero-point vibrational levels by the molecular cross-shaped structure, but is found for a wide range of wavelength, presumably based on vibrationally excited states.
Autor*innen: | Bernhard SchartelORCiD, Simone KrügerORCiD, Volker WachtendorfORCiD, Manfred Hennecke |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | The journal of chemical physics |
Jahr der Erstveröffentlichung: | 2000 |
Verlag: | American Institute of Physics |
Verlagsort: | Melville, NY |
Jahrgang/Band: | 112 |
Ausgabe/Heft: | 22 |
Erste Seite: | 9822 |
Letzte Seite: | 9827 |
DOI: | 10.1063/1.481620 |
ISSN: | 0021-9606 |
ISSN: | 1089-7690 |
Verfügbarkeit des Dokuments: | Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access") |
Bibliotheksstandort: | Sonderstandort: Publica-Schrank |
Datum der Freischaltung: | 19.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 24.04.2003 |