Ultrafast Formation of Nonemissive Species via Intermolecular Interaction in Single Crystals of Conjugated Molecules
- 22 January 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 86 (4), 732-735
- https://doi.org/10.1103/physrevlett.86.732
Abstract
We investigate the influence of interchain interactions on the photoluminescence processes in a sexithiophene single crystal by applying hydrostatic pressure. We perform transient photoluminescence spectroscopy in the time domain of 100 fs for pressures up to 60 kbar. The combined use of steady-state and time-resolved optical spectroscopies allows us to show that the pressure-induced quenching of the photoluminescence is caused by an ultrafast ( fs) formation of intermolecular species.
Keywords
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