K
Kathrin Sentker
Researcher at Hamburg University of Technology
Publications - 13
Citations - 159
Kathrin Sentker is an academic researcher from Hamburg University of Technology. The author has contributed to research in topics: Liquid crystal & Birefringence. The author has an hindex of 6, co-authored 13 publications receiving 122 citations. Previous affiliations of Kathrin Sentker include University of Hamburg.
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Journal ArticleDOI
Quantized Self-Assembly of Discotic Rings in a Liquid Crystal Confined in Nanopores.
Kathrin Sentker,Arne Wolf Zantop,Milena Lippmann,Tommy Hofmann,Oliver H. Seeck,Andriy V. Kityk,Arda Yildirim,Andreas Schönhals,Marco G. Mazza,Patrick Huber +9 more
TL;DR: Monte Carlo simulations yielding spatially resolved nematic order parameters, density maps, and bond-orientational order parameters corroborate the universality and robustness of the confinement-induced columnar ring formation as well as its quantized nature.
Journal ArticleDOI
Dynamics and ionic conductivity of ionic liquid crystals forming a hexagonal columnar mesophase
Arda Yildirim,Paulina Szymoniak,Kathrin Sentker,Martin Butschies,Andrea Bühlmeyer,Patrick Huber,Sabine Laschat,Andreas Schönhals +7 more
TL;DR: Electric conductivity is detected and an increase in the DC conductivity by four orders of magnitude at the phase transition from the plastic crystalline to the hexagonal columnar mesophase is found, traced to a change in the charge transport mechanism from a delocalized electron hopping in the stacked aromatic systems to one dominated by an ionic conduction in the quasi-1D ion channels formed along the supermolecular columns in the ILC hexagonal mesophases.
Journal ArticleDOI
Self-assembly of liquid crystals in nanoporous solids for adaptive photonic metamaterials.
Kathrin Sentker,Arda Yildirim,Milena Lippmann,Arne Wolf Zantop,Florian Bertram,Tommy Hofmann,Oliver H. Seeck,Andriy V. Kityk,Marco G. Mazza,Andreas Schönhals,Patrick Huber +10 more
TL;DR: In this article, a temperature-dependent 3D reciprocal space mapping using synchrotron-based X-ray diffraction in combination with high-resolution birefringence experiments on disk-like mesogens (HAT6) imbibed in self-ordered arrays of parallel cylindrical pores 17 to 160 nm across in monolithic anodic aluminium oxide (AAO).
Journal ArticleDOI
Collective orientational order and phase behavior of a discotic liquid crystal under nanoscale confinement
TL;DR: In this article, the phase behavior and molecular ordering of hexakishexyloxy triphenylene (HAT6) DLCs under cylindrical nanoconfinement are studied utilizing differential scanning calorimetry (DSC) and dielectric spectroscopy (DS).
Journal ArticleDOI
Multiple glassy dynamics in dipole functionalized triphenylene-based discotic liquid crystals revealed by broadband dielectric spectroscopy and advanced calorimetry - assessment of the molecular origin.
Arda Yildirim,Andrea Bühlmeyer,Shunsuke Hayashi,Shunsuke Hayashi,Johannes Christian Haenle,Kathrin Sentker,Christina Krause,Patrick Huber,Sabine Laschat,Andreas Schönhals +9 more
TL;DR: In this article, a selected series of dipole functionalized triphenylene-based discotic liquid crystals (DLCs) was synthesized and investigated in a systematic way to reveal the phase behavior and molecular dynamics.