243 citations · 528 across the 23 of their papers we have counts for
6 papers · 1 filter
Fluctuating exciton localisation in giant pi-conjugated spoked-wheel macrocycles
Vikas Aggarwal, Alexander Thiessen, Alissa Idelson +8
Conjugated polymers offer potential for many diverse applications but we still lack a fundamental microscopic understanding of their electronic structure. Elementary photoexcitatio…
Temporal fluctuations in excimer-like interactions between pi-conjugated chromophores
Thomas Stangl, Philipp Wilhelm, Daniela Schmitz +5
Inter- or intramolecular coupling processes between chromophores such as excimer formation or H- and J-aggregation are crucial to describing the photophysics of closely packed film…
Unraveling the chromophoric disorder of poly(3-hexylthiophene)
Alexander Thiessen, Jan Vogelsang, Takuji Adachi +3
The spectral breadth of conjugated polymers gives these materials a clear advantage over other molecular compounds for organic photovoltaic applications and is a key factor in rece…
Exciton Localization in Extended π-electron Systems: Comparison of Linear and Cyclic Structures
Alexander Thiessen, Dominik Würsch, Stefan-S. Jester +6
We employ five π-conjugated model materials of different molecular shape --- oligomers and cyclic structures --- to investigate the extent of exciton self-trapping and torsional mo…
Multipass laser cavity for efficient transverse illumination of an elongated volume
Jan Vogelsang, Marc Diepold, Aldo Antognini +11
A multipass laser cavity is presented which can be used to illuminate an elongated volume from a transverse direction. The illuminated volume can also have a very large transverse…
Spontaneous fluctuations of transition dipole moment orientation in OLED triplet emitters
Florian Steiner, Sebastian Bange, Jan Vogelsang +1
The efficiency of an organic light-emitting diode (OLED) depends on the microscopic orientation of transition dipole moments of the molecular emitters. The most effective materials…