http://www.cnr.it/ontology/cnr/individuo/prodotto/ID168995
Observation and control of coherent torsional dynamics in a quinquethiophene molecule (Articolo in rivista)
- Type
- Label
- Observation and control of coherent torsional dynamics in a quinquethiophene molecule (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Alternative label
Cirmi G., Brida D., Gambetta A., Piacenza M., Della Sala F., Favaretto L., Cerullo G. and Lanzani G. (2010)
Observation and control of coherent torsional dynamics in a quinquethiophene molecule
in PCCP. Physical chemistry chemical physics (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Cirmi G., Brida D., Gambetta A., Piacenza M., Della Sala F., Favaretto L., Cerullo G. and Lanzani G. (literal)
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- Rivista
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- DOI:10.1039/c000505c (literal)
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Favaretto , Laura] CNR, ISOF, I-40129 Bologna, Italy; [Cirmi, Giovanni; Brida, Daniele; Gambetta, Alessio; Cerullo , Giulio; Lanzani, Guglielmo] Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy; [Piacenza , Manuel; Della Sala, Fabio] National Nanotechnology Laboratory , CNR-INFM, Lecce, Italy 1. Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy
2. CNR INFM, Natl Nanotechnol Lab, Lecce, Italy (Piacenza M., Della Sala F.)
3. ISOF, Area Ric Bologna, Consiglio Nazl Ric, I-40129 Bologna, Italy
4. MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA
5. MIT, Elect Res Lab, Cambridge, MA 02139 USA
6. Ruhr Univ Bochum, ICAMS, D-44801 Bochum, Germany
7. IIT, Ctr Biomol Nanotechnol, Lecce, Italy
8. IIT POLIMI, Ctr Nanosci & Technol, I-20133 Milan, Italy (literal)
- Titolo
- Observation and control of coherent torsional dynamics in a quinquethiophene molecule (literal)
- Abstract
- By applying femtosecond pumpprobe spectroscopy to a substituted quinquethiophene molecule in solution, we observe in the time domain the coherent torsional dynamics that drives
planarization of the excited state. Our interpretation is based on numerical modeling of the
ground and excited state potential energy surfaces and simulation of wavepacket dynamics, which
reveals two symmetric excited state deactivation pathways per oscillation period. We use the
acquired knowledge on torsional dynamics to coherently control the excited state population with
a pump-dump scheme, exploiting the non-stationary FranckCondon overlap between ground
and excited states. (literal)
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