Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Vera Stehr"'
Publikováno v:
WIREs Computational Molecular Science. 6:694-720
Charge and exciton transport in organic semiconductors is crucial for a variety of optoelectronic applications. The prediction of the material-dependent exciton diffusion length and the charge carrier mobility is a prerequisite for tailoring new mate
Autor:
Angela Poschlad, Pascal Friederich, Velimir Meded, Gesa Lüdemann, Vadim Rodin, Reinhold F. Fink, Wolfgang Wenzel, Franz Symalla, Vera Stehr, Florian von Wrochem, Tobias Neumann, Ivan Kondov, Denis Danilov
Publikováno v:
Advanced functional materials, 26 (31), 5757-5763
Small-molecule organic semiconductors are used in a wide spectrum of applications, ranging from organic light emitting diodes to organic photovoltaics. However, the low carrier mobility severely limits their potential, e.g., for large area devices. A
Autor:
Reinhold F. Fink, Vera Stehr
Publikováno v:
Nachrichten aus der Chemie. 64:328-331
Autor:
Sebastian F. Völker, Christoph Lambert, Volker Engel, Vera Stehr, Christoph Brüning, Anna Heilos, Bernd Engels, Christof Walter, Eileen Welz
Publikováno v:
The Journal of Physical Chemistry C. 119:6174-6180
The absorption and emission properties of macrocyclic cis-indolenine squaraine dyes are studied experimentally and theoretically. As compared to the monomeric species, large Stokes shifts of the emission are observed for cyclic trimers and tetramers.
Publikováno v:
Journal of Chemical Theory and Computation. 10:1242-1255
Exciton diffusion is a critical step for energy conversion in optoelectronic devices. This spawns the desire for theoretical approaches that allow for fast but reliable determinations of the material-dependent exciton transport parameters. For this p
Autor:
Jens Pflaum, Wenlan Liu, Vera Stehr, A. K. Topczak, Maxim Tafipolski, Alexander Schubert, Volker Settels, Reinhold F. Fink, Volker Engel, Bernd Engels, Carsten Deibel
Publikováno v:
Journal of the American Chemical Society. 136(26)
The exciton diffusion length (LD) is a key parameter for the efficiency of organic optoelectronic devices. Its limitation to the nm length scale causes the need of complex bulk-heterojunction solar cells incorporating difficulties in long-term stabil
Publikováno v:
The Journal of chemical physics. 140(2)
Due to its importance for the function of organic optoelectronic devices, accurate simulations of the singlet exciton diffusion are crucial to predict the performance of new materials. We present a protocol which allows for the efficient directional
The orientational dependence of charge carrier mobilities in organic semiconductor crystals and the correlation with the crystal structure are investigated by means of quantum chemical first principles calculations combined with a model using hopping
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