Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Home
Search
Quick Search
Advanced
Fulltext
Browse
Collections
Persons
My eDoc
Session History
Login
Name:
Password:
Documentation
Help
Support Wiki
Direct access to
document ID:


          Institute: MPI für Polymerforschung     Collection: MPI Polymerforschung     Display Documents



  history
ID: 56400.0, MPI für Polymerforschung / MPI Polymerforschung
Probing Förster type energy pathways in a first generation rigid dendrimer bearing two perylene imide chromophores
Authors:Vosch, T.; Cotlet, M.; Hofkens, J.; Van Der Biest, K.; Lor, M.; Weston, K.; Tinnefeld, P.; Sauer, M.; Latterini, L.; Müllen, Klaus; De Schryver, F. C.
Language:English
Date of Publication (YYYY-MM-DD):2003-09-11
Title of Journal:Journal of Physical Chemistry A
Journal Abbrev.:J. Phys. Chem. A
Volume:107
Issue / Number:36
Start Page:6920
End Page:6931
Review Status:not specified
Audience:Not Specified
Abstract / Description:Ensemble and single molecule spectroscopic measurements on a bichromophoric dendrimer system were performed. Although Forster type energy processes such as energy hopping and singlet-singlet annihilation can be observed at the ensemble and single molecule level, only single molecule measurements can visualize the presence of singlet-triplet annihilation. The flux dependent population of the triplet state suggests facilitated formation of the triplet through a higher singlet excited state. The presence of synthesis inherent structural isomers, not to be distinguished at the ensemble level, could be demonstrated by analyzing modulated fluorescence intensity trajectories. These data show the complementarity of both the ensemble and single molecule approaches in the study of detailed photophysics of a multichromophoric system.
Comment of the Author/Creator:Date: 2003, SEP 11
External Publication Status:published
Document Type:Article
Affiliations:MPI für Polymerforschung
External Affiliations:Katholieke Univ Leuven, Dept Chem, B-3001 Heverlee, Belgium.; Univ Heidelberg, Inst Phys Chem, D-69120 Heidelberg, Germany.; Univ Perugia, Dept Chem, I-06123 Perugia, Italy.
Identifiers:ISI:000185233400004 [ID No:1]
ISSN:1089-5639 [ID No:2]
LOCALID:P-03-152
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.