Weak Exciton Scattering in Molecular Nanotubes Revealed by Double-Quantum Two-Dimensional Electronic Spectroscopy
- Author(s)
- Darius Abramavicius, Alexandra Nemeth, Franz Milota, Jaroslaw Sperling, Shaul Mukamel, Harald Kauffmann
- Abstract
The two-exciton manifold of a double-wall cylindrical molecular aggregate is studied using a coherent third order optical technique. Experiments reveal the anharmonic character of the exciton bands. Atomistic simulations of the exciton-exciton scattering show that the excitons can be treated as weakly coupled hard-core bosons. The weak coupling stems from the extended exciton delocalization made possible by the nanotube geometry.
- Organisation(s)
- Department of Physical Chemistry, Electronic Properties of Materials
- External organisation(s)
- Jilin University, Newport Spectra-Physics Gmbh, University of California, Irvine
- Journal
- Physical Review Letters
- Volume
- 108
- Pages
- 1-5
- No. of pages
- 5
- ISSN
- 0031-9007
- DOI
- https://doi.org/10.1103/PhysRevLett.108.067401
- Publication date
- 2012
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 104017 Physical chemistry, 103018 Materials physics
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/weak-exciton-scattering-in-molecular-nanotubes-revealed-by-doublequantum-twodimensional-electronic-spectroscopy(f0767b55-ac78-41bc-9765-eb7a6b88b9b3).html