Size-dependent exciton dynamics in one-dimensional perylene bisimide aggregates

@article{Wolter2012SizedependentED,
  title={Size-dependent exciton dynamics in one-dimensional perylene bisimide aggregates},
  author={Steffen Wolter and Janis Aizezers and Franziska Fennel and Marcus Seidel and Frank W{\"u}rthner and Oliver K{\"u}hn and Stefan Lochbrunner},
  journal={New Journal of Physics},
  year={2012},
  volume={14}
}
The size-dependent exciton dynamics of one-dimensional aggregates of substituted perylene bisimides are studied by ultrafast transient absorption spectroscopy and kinetic Monte-Carlo simulations as a function of the excitation density and the temperature in the range of 25–90 °C. For low temperatures, the aggregates can be treated as infinite chains and the dynamics is dominated by diffusion-driven exciton–exciton annihilation. With increasing temperature the aggregates dissociate into small… 
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7 Citations

7 Citations

Low temperature exciton dynamics and structural changes in perylene bisimide aggregates

The temperature dependent exciton dynamics of J-aggregates formed by a perylene bisimide dye is investigated down to liquid nitrogen temperature (77 K) by femtosecond pump–probe spectroscopy. The…

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The ultrafast relaxation from the S2 to the S1 state in perylene bisimides is investigated by femtosecond absorption spectroscopy. The relaxation takes place on a timescale of 150 fs and accelerates…

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The ultrafast exciton dynamics in J-aggregates of a perylene bisimide dye is investigated for temperatures down to 77 K revealing at low temperatures a decrease of the exciton mobility and a change…

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