• Frank Giesselmann, Heinz Kitzerow, Rudolf Zentel: „Fifty years of liquid crystal research in the mirror of the German Liquid Crystal Conference“, Liquid Crystals Today 33 (1), 2 - 9 (2024); DOI: 10.1080/1358314X.2024.2415787

•  David Becker, Patrick Meier, Andreas Kuhlmann, Christian Sternemann, Harald Bock, Hans-Georg Steinrück, and Heinz-Siegfried Kitzerow: “Influence of the deposition rate on the alignment and performance of perylene-3,4,9,10-tetracarboxylic tetraethyl ester in an organic light emitting diode”, ACS Applied Electronic Materials 6 (2), 1234–1243 (2024); DOI: 10.1021/acsaelm.3c01586

• Gaby Nordendorf, Gisela Jünnemann-Held, Alexander Lorenz, and Heinz Kitzerow: „Effects of composition and polymerization conditions on the electro-optic performance of liquid crystal – polymer composites doped with ferroelectric nanoparticles”, Nanomaterials 14 (11), 961 (2024); DOI: 10.3390/nano14110961

•  Patrick A. Meier, Susanne Keuker-Baumann, Harald Herrmann, Raimund Ricken, Christine Silberhorn, and Heinz-S. Kitzerow: Optical imaging of ferroelectric domains in periodically poled lithium niobate using ferroelectric liquid crystals, Opto-Electronics-Review 32 (3), e150611 (2024); DOI: 10.24425/opelre.2024.150611

•  Bingru Zhang, Benjamin Hämisch, Klaus Huber, Kevin Martens, Linh Nguyen, Luisa Kneer, Susanne Kempter, Tim Liedl, and Heinz Kitzerow: „Investigation of nano-rods fabricated by the DNA origami method using static and dynamic light scattering”, Mol. Cryst. Liq. Cryst., Nov., pp. 1-9 (2024); DOI: 10.1080/15421406.2024.2418067

• R. Geromel, R. Rennerich, T. Zentgraf, and H. Kitzerow: „ Geometric-Phase Metalens to be Used for Tunable Optical Tweezers in Microfluidics“, Liquid Crystals 50, (2023); DOI: 10.1080/02678292.2023.2171146

• B. Zhang, L. Nguyen, K. Martens, A. Heuer-Jungemann, J. Philipp, S. Kempter, J. O. Rädler, T. Liedl, and H. Kitzerow: „Luminescent DNA-origami nanorods dispersed in a lyotropic chromonic liquid crystal”, Liquid Crystals 50, (2023); DOI: 10.1080/02678292.2023.2188494

• C. Wiebeler, J. Vollbrecht, A. Neuba, H.-S. Kitzerow, and S. Schumacher: „Unraveling the electrochemical and spectroscopic properties of neutral and negatively charged perylene tetraethylesters”, Scientific Reports 11, 16097 (2021); DOI: 10.1038/s41598-021-95551-0

• M. Risse, J. Schmidtke, H. Kitzerow: „Switching dynamics of a nematic liquid crystal in the infrared spectral range”, Liquid Crystals48 (7), 1025-1033 (2021); DOI: 10.1080/02678292.2020.1839803

• B. Atorf, H. Mühlenbernd, T. Zentgraf, H. Kitzerow: “All-optical switching of a dye-doped liquid crystal plasmonic metasurface”, Optics Express 28 (6), 8898-8908 (2020); DOI: 10.1364/OE.383877

• C. Keum, D. Becker, E. Archer, H. Bock, H. Kitzerow, M. C. Gather, and C. Murawski: “Organic light-emitting diodes based on a columnar liquid-crystalline perylene emitter”, Adv. Opt. Mater. 2020, 2000414,1-7 (2020); DOI: 10.1002/adom.202000414

• B. Zhang, K. Martens, L. Kneer, T. Funck, L. Nguyen, R. Berger, M. Dass, S. Kempter, J. Schmidtke, T. Liedl, and H.-S. Kitzerow: „DNA Origami Nanorods Alter the Orientational Order in a Lyotropic Chromonic     Liquid Crystal”, Nanomaterials 10 (9), 1695 (2020); DOI: .3390/nano10091695

[Translate to English:]

B. Zhang, J. Schmidtke, H.-S. Kitzerow: “Fabrication of Lyotropic Alignment Layers for Thermotropic Liquid Crystals Facilitated by an Anisotropic Polymer Template”, Adv. Optical Mater. 2019, 1801766 (1-7) (2019); DOI: 10.1002/adom.201801766

J. Vollbrecht, C. Wiebeler, H. Bock, S. Schumacher, and H.-S. Kitzerow: “Curved Polar Dibenzocoronene Esters and Imides Versus Their Planar Centrosymmetric Homologs: Photophysical and Optoelectronic Analysis”, J. Phys. Chem. C 123, 4483−4492 (2019); DOI: 10.1021/acs.jpcc.8b10730

B. Atorf, C. H. Auf der Landwehr, R. Rennerich, and H.-S. Kitzerow: „Mid-Infrared Birefringence of Liquid Crystals, Polarimetry, and Intensity Modulator”, J. Phys. Chem. B 123, 1384−1389 (2019); DOI: 10.1021/acs.jpcb.8b10039

• J. Vollbrecht, P. Oechsle, A. Stepen, F. Hoffmann, J. Paradies, Th. Meyers, U. Hilleringmann, J. Schmidtke, H. Kitzerow: „Liquid crystalline dithienothiophene derivatives for organic electronics”, Organic Electronics (2018), in press; DOI: 10.1016/j.orgel.2018.06.002
• B. Atorf, S. Friesen, R. Rennerich, H. Mühlenbernd, T. Zentgraf, and H.-S. Kitzerow: „Switchable plasmonic metasurface utilizing the electro-optic Kerr effect of a blue phase liquid crystal”, Polymer Science (2018), in press.
• J. Vollbrecht, A. Stepen, K. Nolkemper, S. Keuker-Baumann, H. Kitzerow: “Blends of Two Perylene Derivatives: Mesogenic Properties and Application as Emitter Materials in OLEDs”, Polymer Science (2018), in press.
• B. Atorf, H. Rasouli, H. Mühlenbernd, B. Reineke, T. Zentgraf, and H. Kitzerow: "Switchable Plasmonic Hologram Utilizing the Electrooptic Effect of a Liquid Crystal Circular Polarizer", J. Phys. Chem. C 122 (8), 4600-4606 (2018); DOI: 10.1021/acs.jpcc.7b12609

• Th. Meyers; J. Vollbrecht; F. Vidor; J. Reker; H.-S. Kitzerow; and U. Hilleringmann: "Organic Thin-Film Transistors for AMOLED Applications", IEEE Xplore, MikroSystemTechnik 2017; VDE Congress (23-25 Oct. 2017, Munich, Germany), pp. 1-4 (2017); Print ISBN: 978-3-8007-4491-6

• B. Atorf, H. Rasouli, R. Rennerich, H. Mühlenbernd, B. J. Reineke, T. Zentgraf, H.-S. Kitzerow: „Tunable Plasmonic Structures Utilizing Liquid Crystals”, IEEEXplore 2017, 11th International Congress on Engineered Material Platforms for Novel Wave Phenomena (Metamaterials 2017, Marseille, France, 28 August- 2 September 2017), pp. 175-177 (2017); DOI: 10.1109/MetaMaterials.2017.8107880

• B. Atorf, T. Funck, T. Hegmann, S. Kempter, T. Liedl, K. Martens, H. Mühlenbernd, T. Zentgraf, B. Zhang, H. Kitzerow & M. Urbanski: “Liquid crystals and precious metal: from nanoparticle dispersions to functional plasmonic nanostructures”, Liquid Crystals (2017); DOI: 10.1080/02678292.2017.1359692M.C

• M. Wahle, K. Brassat, J. Ebel, J. Bürger, J. Lindner, H.-S. Kitzerow: "Two-dimensional switchable blue phase gratings manufactured by nanosphere lithography", Optics Express 25 (19), (2017); DOI: 10.1364/OE.25.022607

• J. Vollbrecht, S. Blazy,P. Dierks, S. Peurifoy, H. Bock, H.-S. Kitzerow: "Electroluminescent and Optoelectronic Properties of OLEDs with Bay-Extended, Distorted Perylene Esters as Emitter Materials" (2017); DOI: 10.1002/cphc.201700502

• J. Vollbrecht, C. Wiebeler, S. Schumacher, H. Bock, and H. Kitzerow: “Enhanced Columnar Mesophase Range through Distortions in Arene Cores”, Mol. Cryst. Liq. Cryst. 646 (1), 66-73 (2017); DOI: 10.1080/15421406.2017.1284387

• S. Knust, M. Wahle and H. Kitzerow: „Ferroelectric liquid crystals in micro-capillaries: observation of different electro-optic switching mechanisms“, J. Phys. Chem. B 121 (19), 5110−5115 (2017); DOI: 10.1021/acs.jpcb.7b00307

• G. Nordendorf, J. Schmidtke, D. Wilkes, and H. Kitzerow: „Temperature-insensitive electro-optic response of polymer-stabilized blue phases”, J. Mater. Chem. C 5, 518-521 (2017); DOI: 10.1039/C6TC04679G

• A. Sharma, M. Urbanski, T. Mori, H.-S. Kitzerow, and T. Hegmann: “Metallic and semiconducting nanoparticles in liquid crystals”, book chapter in "Liquid Crystals with Nano- and Microparticles", (Series in soft condensed matter; 7), edited by J. P. F. Lagerwall and G. Scalia, Vol. II, Chapter 14, pp. 497-535, World Scientific, Singapore, 2017; DOI: 10.1142/9789814619264_0014

• M. Wahle, J. Ebel, D. Wilkes, and H.-S. Kitzerow: “Asymmetric band gap shift in electrically addressed blue phase photonic crystal fibers”, Optics Express 24 (20), 22718-22729 (2016); DOI: 10.1364/OE.24.022718

• B. Zhang and H.-S. Kitzerow: „Pattern Formation in a Nematic Liquid Crystal Mixture with Negative Anisotropy of the Electric Conductivity - A Long-Known System with Inverse Light Scattering Revisited”, J. Phys. Chem. B 120 (27), 6865–6871 (2016); DOI: 10.1021/acs.jpcb.6b05080

• B. Atorf, H. Rasouli, G. Nordendorf, D. Wilkes, H. Kitzerow: “Near infrared Kerr effect and description of field-induced phase transitions in polymer-stabilized blue phase liquid crystals”, Appl. Phys. Lett. 108, 081107 (2016); DOI: 10.1063/1.4942604

• J. Vollbrecht, C. Wiebeler, A. Neuba, H. Bock, S. Schumacher, H. Kitzerow:  „Bay-Extended, Distorted Perylene Esters Showing Visible Luminescence after Ultraviolet Excitation: Photophysical and Electrochemical Analysis”, J. Phys. Chem. C 120 (14), 7839-7848 (2016); DOI: 10.1021/acs.jpcc.6b00954

• K. Martens, T. Funck, S. Kempter, E.-M. Roller, T. Liedl, B. M. Blaschke, P. Knecht, J. A. Garrido, B. Zhang, and H. Kitzerow: „Alignment and graphene-assisted decoration of lyotropic chromonic liquid crystals containing DNA origami nanostructures”, Small 12 (12), 1658–1666 (2016); DOI: 10.1002/smll.201503382

• B. Zhang and H.-S. Kitzerow: “Influence of Proton and Salt Concentration on the Chromonic Liquid Crystal Phase Diagram of Disodium Cromoglycate Solutions: Prospects and Limitations of a Host for DNA Nanostructures”, J. Phys. Chem. B 120, 3250-3256 (2016); DOI: 10.1021/acs.jpcb.6b01644

• M. Urbanski, J. Mirzaei, A. Sharma, D. Hofmann, H.-S. Kitzerow, and T. Hegmann: “Chemically and thermally stable, emissive carbon dots as viable alternatives to semiconductor quantum dots for emissive nematic liquid crystal–nanoparticle mixtures with lower threshold voltage”, Liquid Crystals 43 (2), 183-194 (2016); DOI: 10.1080/02678292.2015.1082651

[Translate to English:]

Alignment and Graphene-Assisted Decoration of Lyotropic Chromonic Liquid Crystals Containing DNA Origami Nanostructures

Near Infraed Kerr Effect and Description of Field-Induced Phase Transitions in Polymer-Stabilized Blue Phase Liquid Crystals

Bay-Extended, Distorted Perylene Esters Showing Visible Luminescence after Ultraviolet Excitation: Photophysical and Electrochemical Analysis

Influence of Proton and Salt Concentration on the Chromonic Liquid Crystal Phase Diagram of Disodium Cromoglycate Solutions: Prospects and Limitations of a Host for DNA Nanostructures

Self-organized assemblies of colloidal particles obtained from an aligned chromonic liquid crystal dispersion

Measurement of group velocity dispersion in a solid-cpre photonic crystal fiber filled with a nematic liquid crystal
M. Wahle and H. Kitzerow
Optics Letters 39 (16), 4816-4819 (2014); DOI: 10.1364/OL.39.004816

Polymer-stabilized blue phases: promising mesophases for a new generation of liquid crystal displays
G. Nordendorf, A. Hoischen, J. Schmidtke, D. Wilkes, and H.-S. Kitzerow
Polymers for Advanced Technologies 25 (11), 1195–1207 (2014); DOI: 10.1002/pat.3403

Polycyclic aromatic hydrocarbons obtained by lateral extension of mesogenic perylene cores: Absorption and optoelectronic properties
J. Vollbrecht, H. Bock, C. Wiebeler, S. Schumacher, and H. Kitzerow
Chemistry – A European Journal 20 (38), 12026–12031 (2014); DOI: 10.1002/chem.201403287

Columnar Molecular Aggregation in the Aqueous Solutions of Disodium Cromoglycate
D. M. Agra-Kooijman, G. Singh, A. Lorenz, P. J. Collings, H.­S. Kitzerow, and S. Kumar
Phys. Rev. E 89, 062504 (2014); DOI: 10.1103/PhysRevE.89.062504

Synthesis of liquid crystal silane-functionalized gold nanoparticles and their effects on optical and electro-optic properties of a structurally related nematic liquid crystal
J. Mirzaei, M. Urbanski, H.-S. Kitzerow, and T. Hegmann
ChemPhysChem 15, 1381–1394 (2014); DOI: 10.1002/cphc.201301052

Nanoparticle Doping in Nematic Liquid Crystals: Distinction between Surface and Bulk Effects by Numerical Simulations
M. Urbanski, J. Mirzaei, T. Hegmann, and H.-S. Kitzerow
ChemPhysChem 15, 1395-1404 (2014); DOI: 10.1002/cphc.201301054

Effect of Alignment on a Liquid Crystal/Split-Ring Resonator Metasurface
B. Atorf, H. Mühlenbernd, M. Muldarisnur, T. Zentgraf, and H. Kitzerow
ChemPhysChem 15, 1470-1476 (2014); DOI: 10.1002/cphc.201301069

Photonic Micro- and Nanostructures, Metamaterials
H.-S. Kitzerow
in Handbook of Liquid Crystals
edited by J. W. Goodby, P. J. Collings, H. Gleeson, T. Kato, P. Raynes, and C. Tschierske
Volume 8, Chapter 13, pages 373-426, Wiley-VCH. Weinheim, 2014

Electro-optic tuning of split ring resonators embedded in a liquid crystal
B. Atorf, H. Mühlenbernd, M. Muldarisnur, T. Zentgraf, and H. Kitzerow
Opt. Lett. 39 (5), 1129-1132 (2014); DOI: 10.1364/OL.39.001129

Liquid crystal assisted optical fibres
M. Wahle and H.-S. Kitzerow
Optics Express 22 (1), 262–273 (2014); DOI: 10.1364/OE.22.000262

Enhanced organic light emitting diode based on a columnar liquid crystal by integration in a microresonator
O. Kasdorf, J. Vollbrecht, B. Ohms, U. Hilleringmann, H. Bock, and H.-S. Kitzerow
Int. J. Energy Res. 38 (4), 452-458 (2013); DOI: 10.1002/er.3127

Liquid Crystal Lasers: Recent Advances
J. Schmidtke, L. Lu, H.-S. Kitzerow, and E. M. Terentjev
Proc. SPIE 8642, 864209 (2013); DOI: 10.1117/12.2008373

Planar anchoring strength and pitch measurements in achiral and chiral chromonic liquid crystals using 90-degree twist cells
C. K. McGinn, L. I. Laderman, N. Zimmermann, H.-S. Kitzerow, and P. J. Collings
Phys Rev. E 88, 062513 (2013); DOI: 10.1103/PhysRevE.88.062513

Hysteresis and memory factor of the Kerr effect in blue phases
G. Nordendorf, A. Lorenz, A. Hoischen, J. Schmidtke, H. Kitzerow, D. Wilkes, and M. Wittek
J. Appl. Phys. 114, 173104 (2013); DOI: 10.1063/1.4828477

X-ray scattering of a nematic liquid crystal nano-dispersion with negative dielectric anisotropy
A. Lorenz, N. Zimmermann, S. Kumar, D. R. Evans, G. Cook, M. Fernández Martínez und H.-S. Kitzerow
Invited Article, Applied Optics 52 (22), E1-E5 (2013); DOI: 10.1364/AO.52.0000E1

Microresonator-enhanced electroluminescence of an organic light emitting diode based on a columnar liquid crystal
J. Vollbrecht, O. Kasdorf, V. Quiring, H. Suche, H. Bock und H.-S. Kitzerow
Appl. Phys. Lett. 103, 043303 (2013); DOI: 10.1063/1.4816425

Hydrophobic gold nanoparticles via silane conjugation: chemically and thermally robust nanoparticles as dopants for nematic liquid crystals
J. Mirzaei, M. Urbanski, H.-S. Kitzerow und T. Hegmann
Phil. Trans. R. Soc. A 371, 20120256 (2013); DOI: 10.1098/rsta.2012.0256

Doping a Mixture of Two Smectogenic Liquid Crystals with Barium Titanate Nanoparticles
A. Lorenz, N. Zimmermann, S. Kumar, D. R. Evans, G. Cook, M. Fernández Martínez und H.-S. Kitzerow
J. Phys. Chem. B 117 (3), 937–941 (2013). DOI: 10.1021/jp310624c

Three-dimensional structure in holographic polymer-dispersed liquid crystals
A. Redler und H.-S. Kitzerow
Polymers for Advanced Technologies 24 (1), 7-9 (2013). DOI: 10.1002/pat.3040

New developments in nanoparticle-liquid crystal composites: from magic-sized semiconductor nanoclusters to alignment pattern formation via nanoparticle stenciling
J. Mirzaei, R. Sawatzky, A. Sharma, M. Urbanski, K. Yu, H.-S. Kitzerow und T. Hegmann
Proc. SPIE 8279, 827913 (2012). DOI: 10.1117/12.909022

Doping the nematic liquid crystal 5CB with milled BaTiO₃ nanoparticles
A. Lorenz, N. Zimmermann, S. Kumar, D. R. Evans, G. Cook, and H.-S. Kitzerow
Phys. Rev. E 86, 051704 (2012). DOI: 10.1103/PhysRevE.86.051704

Electrical fine tuning of liquid crystal lasers
J. Schmidtke, G. Jünnemann, S. Keuker-Baumann, and H.-S. Kitzerow
Appl. Phys. Lett. 101, 051117 (2012). DOI: 10.1063/1.4739840

Switching performance of a polymer-stabilized antiferroelectric liquid crystal based on bent-core molecules
B. Atorf, A. Hoischen, B. Ros, N. Gimeno, C. Tschierske, G. Dantlgraber und H.-S. Kitzerow
Appl. Phys. Lett. 100, 223301 (2012). DOI: 10.1063/1.4722794

Kinetics of the grating formation in holographic polymer-dispersed liquid crystals: NMR measurement of diffusion coefficients
M. Tang, A. Redler, D. Topgaard, C. Schmidt, und H.-S. Kitzerow
Journal of Colloid and Polymer Science 290 (8), 751–755 (2012). DOI: 10.1007/s00396-012-2623-0

All-optical tunability of microdisk lasers via polyelectrolyte functionalization
K. A. Piegdon, M. Lexow, G. Grundmeier, H.-S. Kitzerow, K. Pärschke, D. Mergel, D. Reuter, A. D. Wieck und C. Meier
Optics Express 20 (6), 6060–6067 (2012). DOI: 10.1364/OE.20.006060

Nanocomposites of a nematic liquid crystal doped with magic-sized CdSe quantum dots
J. Mirzaei, M. Urbanski, Md. B. Zaman, A. Billy, K. Yu, H.-S. Kitzerow und T. Hegmann
J. Mater. Chem. 21, 12710-12716 (2011). DOI: 10.1039/C1JM11832C

Electro-optic switching in graphene-based liquid crystal cells
M. Wahle, O. Kasdorf, H.-S. Kitzerow, Y. Liang, X. Feng und K. Müllen
Mol. Cryst. Liq. Cryst. 543, 187-193 (2011). DOI: 10.1080/15421406.2011.569524

Liquid crystal / polymer composites: Kinetic study of the grating formation in holographic polymer-dispersed liquid crystals
A. Redler, A. Hoischen und H. Kitzerow
Mol. Cryst. Liq. Cryst. 547, 97-107 (2011). DOI: 10.1080/15421406.2011.572798

Efficient electro-optic switching in a photonic liquid crystal fiber
A. Lorenz und H.-S. Kitzerow
Appl. Phys. Lett. 98, 241106 (2011). DOI: 10.1063/1.3599848

Investigations on the director field around microdisk resonators
M. Urbanski, K. A. Piegdon, C. Meier und H.-S. Kitzerow
Liquid Crystals 38 (4), 475–482 (2011). DOI: 10.1080/02678292.2011.552742