TY  - JOUR
A1  - Schmidt, David
A1  - Stolte, Matthias
A1  - Süß, Jasmin
A1  - Liess, Dr. Andreas
A1  - Stepanenko, Vladimir
A1  - Würthner, Frank
T1  - Protein-like enwrapped perylene bisimide chromophore as bright microcrystalline emitter material
JF  - Angewandte Chemie International Edition
N2  - Strongly emissive solid‐state materials are mandatory components for many emerging optoelectronic technologies, but fluorescence is often quenched in the solid state owing to strong intermolecular interactions. The design of new organic pigments, which retain their optical properties despite their high tendency to crystallize, could overcome such limitations. Herein, we show a new material with monomer‐like absorption and emission profiles as well as fluorescence quantum yields over 90 % in its crystalline solid state. The material was synthesized by attaching two bulky tris(4‐tert‐butylphenyl)phenoxy substituents at the perylene bisimide bay positions. These substituents direct a packing arrangement with full enwrapping of the chromophore and unidirectional chromophore alignment within the crystal lattice to afford optical properties that resemble those of their natural pigment counterparts, in which chromophores are rigidly embedded in protein environments.
KW  - cristal engeneering
KW  - dyes
KW  - flourescence quantum yield
KW  - perylene bisimides
KW  - solid-state emitters
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-204809
VL  - 58
IS  - 38
ER  - 
TY  - JOUR
A1  - Süß, Jasmin
A1  - Wehner, Johannes G.
A1  - Dostál, Jakub
A1  - Engel, Volker
A1  - Brixner, Tobias
T1  - Mapping of exciton-exciton annihilation in a molecular dimer via fifth-order femtosecond two-dimensional spectroscopy
JF  - Journal of Physical Chemistry Letters
N2  - We present a theoretical study on exciton–exciton annihilation (EEA) in a molecular dimer. This process is monitored using a fifth-order coherent two-dimensional (2D) spectroscopy as was recently proposed by Dostál et al. [Nat. Commun. 9, 2466 (2018)]. Using an electronic three-level system for each monomer, we analyze the different paths which contribute to the 2D spectrum. The spectrum is determined by two entangled relaxation processes, namely, the EEA and the direct relaxation of higher lying excited states. It is shown that the change of the spectrum as a function of a pulse delay can be linked directly to the presence of the EEA process.
KW  - exciton-exciton
KW  - Exziton
KW  - Spektroskopie
KW  - EEA
KW  - 2Dimensionale Spektroskopie
KW  - exciton
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-178420
UR  - https://aip.scitation.org/doi/full/10.1063/1.5086151
N1  - This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in J. Süß et al., J. Chem. Phys. 150, 104304 (2019); https://doi.org/10.1063/1.5086151 and may be found at https://doi.org/10.1063/1.5086151.
VL  - 150
IS  - 10
ER  - 
TY  - INPR
A1  - Süß, Jasmin
A1  - Wehner, Johannes G.
A1  - Dostál, Jakub
A1  - Engel, Volker
A1  - Brixner, Tobias
T1  - Mapping of exciton-exciton annihilation in a molecular dimer via fifth-order femtosecond two-dimensional spectroscopy
T2  - Journal of Physical Chemistry Letters
N2  - We present a theoretical study on exciton–exciton annihilation (EEA) in a molecular dimer. This process is monitored using a fifth-order coherent two-dimensional (2D) spectroscopy as was recently proposed by Dostál et al. [Nat. Commun. 9, 2466 (2018)]. Using an electronic three-level system for each monomer, we analyze the different paths which contribute to the 2D spectrum. The spectrum is determined by two entangled relaxation processes, namely, the EEA and the direct relaxation of higher lying excited states. It is shown that the change of the spectrum as a function of a pulse delay can be linked directly to the presence of the EEA process.
KW  - Exziton
KW  - Spektroskopie
KW  - Exciton
KW  - 2Dimensionale Spektroskopie
KW  - EEA
KW  - exciton-exciton
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-178482
UR  - https://aip.scitation.org/doi/full/10.1063/1.5086151
N1  - This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in J. Süß et al.,J. Chem. Phys. 150, 104304 (2019); https://doi.org/10.1063/1.5086151 and may be found at https://doi.org/10.1063/1.5086151
ER  -