The search result changed since you submitted your search request. Documents might be displayed in a different sort order.
  • search hit 3 of 351
Back to Result List

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

Please always quote using this URN: urn:nbn:de:bvb:20-opus-135190
  • 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 degrees 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 fragments consisting of very few monomers.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 degrees 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 fragments consisting of very few monomers. This scenario is also supported by the time-dependent anisotropy deduced from polarization-dependent experiments.show moreshow less

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar Statistics
Metadaten
Author: Steffen Wolter, Janis Aizezers, Franziska Fennel, Marcus Seidel, Frank WürthnerORCiDGND, Oliver Kühn, Stefan Lochbrunner
URN:urn:nbn:de:bvb:20-opus-135190
Document Type:Journal article
Faculties:Fakultät für Chemie und Pharmazie / Institut für Organische Chemie
Language:English
Parent Title (English):New Journal of Physics
Year of Completion:2012
Volume:14
Issue:105027
Source:New Journal of Physics 2012, 14, 105027. doi:10.1088/1367-2630/14/10/105027
DOI:https://doi.org/10.1088/1367-2630/14/10/105027
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 54 Chemie / 547 Organische Chemie
Tag:annihilation; dyes; films; migration; rotational diffusion; spectroscopy
Release Date:2018/03/23
Licence (German):License LogoCC BY-NC-SA: Creative-Commons-Lizenz: Namensnennung, Nicht kommerziell, Weitergabe unter gleichen Bedingungen