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Giesselmann Group
Publications

Publications

Soft matter and liquid crystals

Publication list and cover pictures of our group

Publications

2024

New examples of ferroelectric nematic materials showing evidence for the antiferroelectric smectic-Z phase P. Nacke, A. Manabe, M. Klasen-Memmer, X. Chen, V. Martinez, G. Freychet, M. Zhernenkov, J.E. Maclennan, N.A. Clark, M. Bremer, F. Giesselmann Scientific Reports 14, 4473 (2024) DOI:10.1038/s41598-024-54832-0
Time Dependence of Gel Formation in Lyotropic Nematic Liquid Crystals: From Hours to Weeks M. Dombrowski, M. Herbst, N. Preisig, F. Giesselmann, C. Stubenrauch Gels 10, 261 (2024) DOI:10.3390/gels10040261
Counterion effects on the mesomorphic and electrochemical properties of guanidinium salts M. Ebert, A. Lange, M. Mueller, E. Wuckert, F. Giesselmann, T. Klamroth, A. Zens, A. Taubert, S. Laschat Physical Chemistry Chemical Physics 26, 11988-12002 (2024) DOI: 10.1039/d4cp00356j

2023

Towards Nematic Phases in Ionic Liquid Crystals - A Simulation Study
C. Haege, S.Jagiella, F. Giesselmann
ChemPhysChem 24, e202200424 (2023) DOI:10.1002/cphc.202200424

Mesogenic Groups Control the Emitter Orientation in Multi-Resonance TADF Emitter Films
D.Y. Chen, F. Tenopala-Carmona, J.A. Knoeller, A. Mischok, D. Hall, S.M. Suresh, T. Matulaitis, Y. Olivier, P. Nacke, F. Giesselmann, S. Laschat, M.C. Gather, E. Zysman-Colman
Angewandte Chemie International Edition 62, e202218911 (2023) DOI: 10.1002/anie.202218911

Gelled lyotropic nematic liquid crystals
M. Herbst, M.O. Dombrowski, N. Preisig, S. Dieterich, F. Giesselmann, P. Mésini, C. Stubenrauch
Liquid Crystals 50, 1090-1100 (2023) DOI:10.1080/02678292.2023.2201583

2022

Dynamic light scattering analysis of size-selected graphene oxide 2D colloids fractioned via liquid crystal phase separation
C.D. Abele, F. Giesselmann
Soft Matter 18, 6607-6617 (2022) DOI:10.1039/d2sm00662f

Chasing Self-Assembly of Thioether-Substituted Flavylium Salts in Solution and Bulk State
J.A. Knoller, R. Forschner, W. Frey, J. Lang, A. Baro, A. Zens, Y. Molard, F. Giesselmann, B. Claasen, S. Laschat
ChemPhysChem 23, e202200154 (2022) DOI:10.1002/cphc.202200154

Current Topics in Ionic Liquid Crystals
N. Kapernaum, A. Lange, M. Ebert, M.A. Grunwald, C. Haege, S. Marino, A. Zens, A. Taubert, F. Giesselmann, S. Laschat
ChemPlusChem 87, e202100397 (2022) DOI:10.1002/cplu.202100397

Observation of a uniaxial ferroelectric smectic A phase
X. Chen, V. Martinez, P. Nacke, E. Korblova, A. Manabe, M. Klasen-Memmer, G. Freychet, M. Zhernenkov, M.A. Glaser, L. Radzihovsky, J.E. Maclennan, D.M. Walba, M. Bremer, F. Giesselmann, N.A. Clark
Proceedings of the National Academy of Sciences of the United States of America 119, e2210062119 (2022) DOI:10.1073/pnas.2210062119

2021

Magnetic Tilting in Nematic Liquid Crystals Driven by Self-Assembly
M. Haehsler, H. Nadasi, M. Feneberg, S. Marino, F. Giesselmann, S. Behrens, A. Eremin
Advanced Functional Materials 31, 2101847 (2021) DOI:10.1002/adfm.202101847

Efficient and Spatially Controlled Functionalization of SBA-15 and Initial Results in Asymmetric Rh-Catalyzed 1,2-Additions under Confinement
A. K. Beurer, M. Kirchhof, J. R. Bruckner, W. Frey, A. Baro, M. Dyballa, F. Giesselmann, S. Laschat, Y. Traa
ChemCatChem 13, 2407-2419 (2021) DOI:10.1002/cctc.202100229

Mechanisms and Intermediates in the True Liquid Crystal Templating Synthesis of Mesoporous Silica Materials
J. R. Bruckner, J. Bauhof, J. Gebhardt, A. K. Beurer, Y. Traa, F. Giesselmann
Journal of Physical Chemistry B 125, 3197-3207 (2021) DOI:10.1021/acs.jpcb.0c11005

Interplay between Confinement, Twist Elasticity, and Intrinsic Chirality in Micellar Lyotropic Nematic Liquid Crystals
C. F. Dietrich, P. Rudquist, P. J. Collings, F. Giesselmann
Langmuir 37, 2749-2758 (2021) DOI:10.1021/acs.langmuir.0c03500

Micellar Lyotropic Nematic Gels
S. Dieterich, F. Stemmler, N. Preisig, F. Giesselmann
Advanced Materials 33, 2007340 (2021) DOI:10.1002/adma.202007340

2020

Synergistic structures in lyotropic lamellar gels
S. Dieterich, S. Prevost, C. Dargel, T. Sottmann, F. Giesselmann
Soft Matter 16, 10268-10279 (2020) DOI:10.1039/d0sm01473g

Extremely small twist elastic constants in lyotropic nematic liquid crystals
C. F. Dietrich, P. J. Collings, T. Sottmann, P. Rudquist, F. Giesselmann
Proceedings of the National Academy of Sciences of the United States of America 117, 27238-27244 (2020) DOI:10.1073/pnas.1922275117

Twisting and untwisting of twisted nematic elastomers
Z. S. Davidson, N. Kapernaum, J. Fiene, F. Giesselmann, M. Sitti
Physical Review Materials 4, 105601 (2020) DOI:10.1103/PhysRevMaterials.4.105601

Controlled Synthesis of Reverse Pluronic-Type Block Copolyethers with High Molar Masses for the Preparation of Hydrogels with Improved Mechanical Properties
F. Markus, J.R. Bruckner, S. Naumann
Macromolecular Chemistry and Physics 221, 1900437 (2020) DOI:10.1002/macp.201900437

Surfactant-based lyotropic liquid crystal gels - the interplay between anisotropic order and gel formation
K. Steck, S. Dieterich, C. Stubenrauch, F. Giesselmann
Journal of Materials Chemistry C 8, 5335-5348 (2020) DOI:10.1039/d0tc00561d

2019

Gelation of Lyotropic Liquid-Crystal Phases-The Interplay between Liquid Crystalline Order and Physical Gel Formation
S. Dieterich, T. Sottmann, F. Giesselmann
Langmuir 35, 16793-16802 (2019) DOI:10.1021/acs.langmuir.9b02621

The Lyotropic Analog of the Polar SmC* Phase
J. R. Bruckner, F. Giesselmann
Crystals 9, 568 (2019) DOI:10.3390/cryst9110568

Flavylium Salts: A Blooming Core for Bioinspired Ionic Liquid Crystals
R. Forschner, J. Knelles, K. Bader, C. Müller, W. Frey, A. Kohn, Y. Molard, F. Giesselmann, S. Laschat
Chemistry a European Journal 25, 12966‑12980 (2019) DOI:10.1002/chem.201901975

Self-Assembly and Fluorescence of Tetracationic Liquid Crystalline Tetraphenylethene
J. Knelles, S. Beardsworth, K. Bader, J.R. Bruckner, A. Bühlmeyer, R. Forschner, K. Schweizer, W. Frey, F. Giesselmann, Y. Molard, S. Laschat
ChemPhysChem 20, 2210‑2216 (2019) DOI:10.1002/cphc.201900569

Design of liquid crystals with 'de Vries-like' properties: the effect of an ethynyl spacer in the core structure
Z. Ahmed, C. Müller, J. Johnston, K. Nguyen, C. Schubert, K. Abitaev, S. Marino, F. Giesselmann, R.P. Lemieux
Liquid Crystals 46, 896‑904 (2019) DOI:10.1080/02678292.2018.1536810

Improved Electronic Transport in Ion Complexes of Crown Ether Based Columnar Liquid Crystals
P. Staffeld, M. Kaller, P. Ehni, M. Ebert, S. Laschat, F. Giesselmann
Crystals 9, 74 (2019) DOI:10.3390/cryst9020074

Shear alignment and 2D charge transport of tilted smectic liquid crystalline phases – XRD and FET studies
I. Wurzbach, C. Rothe, K. Bruchlos, S. Ludwigs, F. Giesselmann
Journal of Materials Chemistry C 7, 2615‑2624 (2019) DOI:10.1039/C8TC04536D

Molecular Electron Density Distribution and X-Ray Diffraction Patterns of Smectic A Liquid Crystals – A Simulation Study
C. Haege, S. Jagiella, F. Giesselmann
ChemPhysChem 20, 2466-2472 (2019) DOI: 10.1002/cphc.201900538

2018

On the orientational distribution functions in de Vries-type smectic liquid crystals
P. Rudquist, M.A. Osipov, F. Giesselmann
Liquid Crystals 45, 2097-2108 (2018) DOI:10.1080/02678292.2018.1489985

The Influence of Carbosilane Nanosegregation on the Dynamics in "de Vries-type' Liquid Crystals
C. Müller, C.P.J. Schubert, R.P. Lemieux, F. Giesselmann
ChemPhysChem 19, 2703-2708 (2018) DOI:10.1002/cphc.201800537

Large Electro-Optic Kerr Effect in Ionic Liquid Crystals: Connecting Features of Liquid Crystals and Polyelectrolytes
M.C. Schlick, N. Kapernaum, M.M. Neidhardt, T. Wöhrle, Y. Stöckl, S. Laschat, F. Giesselmann
ChemPhysChem 19, 2305-2312 (2018) DOI:10.1002/cphc.201800347

Actuating thermo- and photo-responsive tubes from liquid crystalline elastomers
L.B. Braun, T. Hessberger, E. Pütz, C. Müller, F. Giesselmann, C.A. Serra, R. Zentel
Journal of Materials Chemistry C 6, 9093-9101 (2018) DOI:10.1039/c8tc02873g

Electroclinic effect in the chiral lamellar alpha phase of a lyotropic liquid crystal
M.D. Harjung, F. Giesselmann
Physical Review E 97, 032705 (2018) DOI:10.1103/PHYSREVE.97.032705

Controlled preparation of amphiphilic triblock-copolyether in a metal- and solvent-free approach for tailored structure-directing agents
A. Balint, M. Papendick, M. Clauss, C. Müller, F. Giesselmann, S. Naumann
Chemical Communications 54, 2220-2223 (2018) DOI:10.1039/C7CC09031E

Hunting for smectic C in calamitic azobenzene ionic liquid crystals with different cationic head groups
N. Kapernaum, E. Wuckert, W. Frey, S. Marino, M. Wahl, F. Giesselmann, S. Lascshat
Journal of Physical Organic Chemistry 31, e3779 (2018) DOI:10.1002/POC.3779

Ultra-broadband EPR spectroscopy in field and frequency domains
P. Neugebauer, D. Bloos, R. Marx, P. Lutz, M. Kern, D. Aguila, J. Vaverka, O. Laguta, C. Dietrich, R. Clerac, J. van Slageren
Physical Chemistry Chemical Physics 20, 15528-15534 (2018) DOI:10.1039/C7CP07443C

The design of smectic liquid crystals with an axially chiral biphenyl core: in search of a proper ferroelectric liquid crystal phase
Z. Ahmed, C. Müller, M. Holzwarth, C. Haege, F. Giesselmann, R.P. Lemieux
Journal of Materials Chemistry C 6, 1562-1566 (2018) DOI:10.1039/C7TC05426B

Mesomorphic properties of cyanobiphenyl dimers with a central malonate unit
M.A. Grunwald, J.C. Haenle, K.C. Kress, R. Forschner, T. Wöhrle, W. Frey, F. Giesselmann, S. Laschat
Liquid Crystals 45, 1626-1636 (2018) DOI:10.1080/02678292.2018.1468500

2017

Amino acid/crown ether hybrid materials: how charge affects liquid crystalline self-assembly
K. Bader, M.M. Neidhardt, T. Wöhrle, R. Forschner, A. Baro, F. Giesselmann, S. Laschat
Soft Matter 13, 8379-8391 (2017)DOI:10.1039/c7sm01484h

New amphiphilic materials showing the lyotropic analogue to the thermotropic smectic C* liquid crystal phase
M.D. Harjung, C.P.J. Schubert, F. Knecht, J.H. Porada, R.P. Lemieux, F. Giesselmann
Journal of Materials Chemistry C 5, 7452-7457 (2017) DOI:10.1039/C7TC02030A

Ordering of ferromagnetic nanoparticles in nematic liquid crystals
I. Dierking, M. Heberle, M.A. Osipov, F. Giesselmann
Soft Matter 13, 4636-4643 (2017) DOI:10.1039/C7SM01029J

Chiral structures from achiral micellar lyotropic liquid crystals under capillary confinement
C.F. Dietrich, P. Rudquist, K. Lorenz, F. Giesselmann
Langmuir 33, 5852-5862 (2017) DOI:10.1021/acs.langmuir.7b01074

Design of liquid crystals with ‘de Vries-like’ properties: structural variants of carbosilane-terminated 5-phenylpyrimidine mesogens
C.P.J. Schubert, C. Müller, A. Bogner, F. Giesselmann, R.P. Lemieux
Soft Matter 13, 3307-3313 (2017) DOI:10.1039/C7SM00355B

Gelling Lamellar Phases of the Binary System Water –Didodecyldimethylammonium Bromide with an Organogelator
S. Koitani, S. Dieterich, N. Preisig, K. Aramaki, C. Stubenrauch
Langmuir 33, 12171-12179 (2017)

Tuning liquid crystalline phase behaviour in columnar crown ethers by sulfur substituents
J. Kirres, K. Schmitt, I. Wurzbach, F. Giesselmann, S. Ludwigs, M. Ringenberg, A. Ruff, A. Baro, S. Laschat
Organic Chemistry Frontiers 4, 790-803 (2017) DOI:10.1039/C7QO00077D

2016

First Examples of de Vries-like Smectic A to Smectic C Phase Transitions in Ionic Liquid Crystals N. Kapernaum, C. Müller, S. Moors, M.C. Schlick, E. Wuckert, S. Laschat, F. Giesselmann ChemPhysChem 17, 4116-4123 (2016) DOI:10.1002/cphc.201600829
δ-Methyl Branching in the Side Chain Makes the Difference: Access to Room-Temperature Discotics J. Kirres, F. Knecht, P. Seubert, A. Baro, S. Laschat ChemPhysChem 17, 1159-1165 (2016) DOI:10.1002/cphc.201501166
Tyrosine-Based Ionic Liquid Crystals: Switching from a Smectic A to a Columnar Mesophase by Exchange of the Spherical Counterion M.M. Neidhardt, M. Wolfrum, S. Beardsworth, T. Woehrle, W. Frey, A. Baro, C. Stubenrauch, F. Giesselmann, S. Laschat Chemistry a European Journal 22, 16494-16504 (2016) DOI:10.1002/chem.201602937
Orientational distribution functions and order parameters in "de Vries"-type smectics: A simulation study F. Jenz, M.A. Osipov, S. Jagiella, F. Giesselmann Journal of Chemical Physics 145, 134901 (2016) DOI:10.1063/1.4963660
Co-flow microfluidic synthesis of liquid crystalline actuating Janus particles T. Hessberger, L.B. Braun, F. Henrich, C. Müller, F. Giesselmann, C. Serra, R. Zentel Journal of Materials Chemistry C 4, 8778-8786 (2016) DOI:10.1039/c6tc03378d
Manipulating the twist sense of helical nanofilaments of bent-core liquid crystals using rod-shaped, chiral mesogenic dopants M.R. Tuchband, D. Chen, B. Horanyi, M. Shuai, Y.Q. Shen, E. Korblova, D.M. Walba, N. Kapernaum, F. Giesselmann, M.A. Glaser, J.E. Maclennan, N.A. Clark Liquid Crystals 43, 1083-1091 (2016) DOI:10.1080/02678292.2016.1159345
Columnar propeller-like 1,3,5-triphenylbenzenes: the missing link of shape-persistent hekates T. Woehrle, S.J. Beardsworth, C. Schilling, A. Baro, F. Giesselmann, S. Laschat Soft Matter 12, 3730-3736 (2016) DOI: 10.1039/c5sm02489g
Reliability of Orientational Order Parameters Determined from Two-dimensional X-ray Diffraction Patterns: A Simulation Study F. Jenz, S. Jagiella, M.A. Glaser, F. Giesselmann ChemPhysChem 17, 1568-1572 (2016) DOI:10.1002/cphc.201600050
Chiral 5-phenylpyrimidine liquid crystals with ‘de Vries-like’ properties: dependence of electroclinic effect and ferroelectric properties on carbosilane nanosegregation C.P.J. Schubert, C. Müller, F. Giesselmann, R.P. Lemieux Journal of Materials Chemistry C 4, 8483-8489 (2016) DOI:10.1039/C6TC03120J
Chirality Detection Using Nematic Liquid Crystal Droplets on Anisotropic Surfaces P. Rudquist, C.F. Dietrich, A.G. Mark, F. Giesselmann Langmuir 32, 6140-6147 (2016) DOI:10.1021/acs.langmuir.6b00382
Structured light enables biomimetic swimming and versatile locomotion of photoresponsive soft microrobots S. Palagi, A.G. Mark, S.Y. Reigh, K. Melde, T. Qiu, H. Zeng, C. Parmeggiani, D. Martella, A. Sanchez-Castillo, N. Kapernaum, F. Giesselmann, D.S. Wiersma, E. Lauga, P. Fischer Nature Materials 15, 647-653 (2016) DOI:10.1038/nmat4569
Gelled complex fluids: Combining unique structures with mechanical stability C. Stubenrauch, F. Giesselmann Angewandte Chemie International Edition 55, 3268-3275 (2016) DOI: 10.1002/anie.201506603 and Angewandte Chemie 128, 3324-3332 (2016) DOI: 10.1002/ange.201506603
Discotic liquid crystals T. Wöhrle, I. Wurzbach, J. Kirres, A. Kostidou, N. Kapernaum, J. Litterscheidt, J. C. Haenle, P. Staffeld, A. Baro, F. Giesselmann, S. Laschat Chemical Reviews 116, 1139-1241 (2016) DOI:10.1021/acs.chemrev.5b00190

2010-2015

Amphotropic azobenzene derivatives with oligooxyethylene and glycerol based polar groups X. P. Tan, R. L. Zhang, C. X. Guo, X. H. Cheng, H. F. Gao, F. Liu, J. R. Bruckner, F. Giesselmann, M. Prehm, C. Tschierske Journal of Materials Chemistry C 3, 11202-11211 (2015) DOI:10.1039/c5tc02583d
Electroclinic effect in a chiral carbosilane-terminated 5-phenylpyrimidine liquid crystal with 'de Vries-like' properties C. P. J. Schubert, C. Mueller, M. D. Wand, F. Giesselmann, R. P. Lemieux Chemical Communications 51, 12601-12604 (2015) DOI:10.1039/c5cc05212b
Tuning the mesomorphic properties of phenoxy-terminated smectic liquid crystals: the effect of fluoro substitution M. Thompson, C. Carkner, N. J. Mosey, N. Kapernaum, R. P. Lemieux Soft Matter 11, 3860-3868 (2015) DOI: 10.1039/C5SM00473J
Photoresponsive ionic liquid crystals based on azobenzene guanidinium salts E. Wuckert, M. D. Harjung, N. Kapernaum, C. Mueller, W. G. Frey, A. Baro, F. Giesselmann, S. Laschat Physical Chemistry Chemical Physics 17, 8382-8392 (2015) DOI: 10.1039/C4CP04783D
Circular polarization interferometry: circularly polarized modes of cholesteric liquid crystals A. Sanchez-Castillo, S. Eslami, F. Giesselmann, P. Fischer Optics Express 22 , 31227-31236 (2014) DOI: 10.1364/OE.22.031227
Interpretation of different molecular packing in the micelles of lyotropic nematic and cholesteric phases via mass density measurements E. Akpinar, F. Giesselmann, M. Acimis Journal of Molecular Liquids 200, 354-360 (2014) DOI: 10.1016/j.molliq.2014.11.009
Design of liquid crystals with 'de Vries' properties: the effect of carbosilane nanosegregation in 5-phenyl-1,3,4-thiadiazole mesogens K. Mulligan, A. Bogner, Q. Song, C. Schubert, F. Giesselmann, R. P. Lemieux Journal of Materials Chemistry C 2 , 8270-8276 (2014) DOI: 10.1039/C4TC01364F
Tuning the mesogenic properties of 5-alkoxy-2-(4-alkoxyphenyl)pyrimidine liquid crystals: the effect of a phenoxy end-group in two isometric series M. Thompson, C. Carkner, A. Bailey, N. J. Mosey, N. Kapernaum, R. P. Lemieux Liquid Crystals 41 (9), 1246-1260 (2014) DOI: 10.1080/02678292.2014.913721
Headgroups versus symmetry in congruent ion pairs: which one does the job in mesomorphic aryl guanidinium and aryl imidazolium sulphonates? M. Butschies, M. Mansueto, J. Haenle, C. Schneck, S. Tussetschlaeger, F. Giesselmann, S. Laschat Liquid Crystals 41 (6), 821-838 (2014) DOI: 10.1080/02678292.2014.885600
Sign inversion of the spontaneous polarization in a 'de Vries'-type ferroelectric liquid crystal D. Nonnenmacher, R. Lemieux, M. Osipov, F. Giesselmann ChemPhysChem 15, 1368-1375 (2014) DOI: 10.1002/cphc.201301154
Chiral isotropic sponge phase of hexatic smectic layers of achiral molecules D. Chen, Y. Shen, J. Aguero, E. Korblova, D. Walba, N. Kapernaum F. Giesselmann, J. Watanabe, J. Maclennan, M. Glaser, N. Clark ChemPhysChem 15, 1502-1507 (2014) DOI: 10.1002/cphc.201300912
Design of liquid crystals with 'de Vries' properties: carbosilane-terminated 5-phenylpyrimidine mesogens suitable for chevron-free FLC Formulations C. Schubert, A. Bogner, J. Porada, K. Ayub, T. Andrea, F. Giesselmann, R. Lemieux Journal of Materials Chemistry C 2, 4581-4589 (2014) DOI: 10.1039/C4TC00393D
Dispersion of multi-wall carbon nanotubes in ferroelectric liquid crystals M. Yakemseva, I. Dierking, N. Kapernaum, N. Usoltseva, F. Giesselmann The European Physical Journal E 37, 7 (2014) DOI: 10.1140/epje/i2014-14007-4
Contributions of intermicellar distance, micelle volume and screw angle to the temperature dependence of helical pitch in the intrinsic lyotropic cholesteric phases E. Akpinar, F. Giesselmann, M. Acimis Journal of Molecular Liquids 191, 20-28 (2014) DOI: 10.1016/j.molliq.2013.11.024
Orientational fluctuations near the smectic A to smectic C phase transition in two “de Vries”-type liquid crystals D. Nonnenmacher, S. Jagiella,Q. X. Song, R. P. Lemieux, F. Giesselmann ChemPhysChem 14, 2990-2995 (2013) DOI: 10.1002/cphc.201300358
Microactuators from a main-chain liquid crystalline elastomer via thiol-ene "click" chemistry E. K. Fleischmann, F. R. Forst, K. Köder, N. Kapernaum, R. Zentel Journal of Materials Chemistry C 1, 5885 (2013) DOI: 10.1039/C3TC30272E
A lyotropic chiral smectic C liquid crystal with polar electrooptic switching J. R. Bruckner, J. H. Porada, C. F. Dietrich, I. Dierking, F. Giesselmann Angewandte Chemie International Edition 52, 8934-8937 (2013) DOI:10.1002/anie.201303344 and Angewandte Chemie 125, 9102-9105 (2013) DOI: 10.1002/ange.201303344
Tuning 'de Vries-like' properties in binary mixtures of liquid crystals with different molecular lengths Q. X. Song, A. Bogner, F. Giesselmann, R. P. Lemieux Chemical Communications 49, 8202-8204 (2013) DOI:10.1039/C3CC45207G
Effect of micelle size and intermicellar distance on the chirality transfer in the intrinsic lyotropic cholesteric phases E. Akpinar, F. Giesselmann, M. Acimis Liquid Crystals 40 (9), 1183-1194 (2013) DOI: 10.1080/02678292.2013.807941
Elucidating the smectic A-promoting effect of halogen end-groups in calamitic liquid crystals I. Rupar, K. M. Mulligan, J. C. Roberts, D. Nonnenmacher, F. Giesselmann, R. P. Lemieux Journal of Materials Chemistry C 1, 3729-3735 (2013) DOI: 10.1039/C3TC30534A
Design of conductive crown ether based columnar liquid crystals: impact of molecular flexibility and geometry P. Staffeld, M. Kaller, S. J. Beardsworth, K. Tremel, S. Ludwigs, S. Laschat, F. Giesselmann Journal of Materials Chemistry C 1, 892-901 (2013) DOI: 10.1039/C2TC00284A
Thermotropic and lyotropic behaviour of new liquid-crystalline materials with different hydrophilic groups: synthesis and mesomorphic properties A. Bubnov, M. Kaspar, V. Hamplova, U. Dawin, F. Giesselmann Beilstein Journal of Organic Chemistry 9, 425-436 (2013) DOI:10.3762/bjoc.9.45
Tuning 'de Vries-like' properties in siloxane- and carbosilane-terminated smectic liquid crystals Q. X. Song, D. Nonnenmacher, F. Giesselmann, R. P. Lemieux Journal of Materials Chemistry C 1, 343-350 (2013) DOI: 10.1039/C2TC00338D
One-piece micropumps from liquid crystalline core-shell particles E. K. Fleischmann, H. L. Liang, N. Kapernaum, F. Giesselmann, J. Lagerwall, R. Zentel Nature Communications 3, 1178 (2012) DOI: 10.1038/ncomms2193
The 2D-correlated structures of a lyotropic liquid crystalline diol with a phenylpyrimidine core J. R. Bruckner, D. Krueerke, J. H. Porada, S. Jagiella, D. Blunk, F. Giesselmann Journal of Materials Chemistry 22, 18198-18203 (2012) DOI: 10.1039/c2jm32868b
Formation of smectic phases in binary liquid crystal mixtures with a huge length ratio N. Kapernaum, F. Knecht, C. S. Hartley, J. Roberts, R. P. Lemieux, F. Giesselmann Beilstein Journal of Organic Chemistry 8, 1118-1125 (2012) DOI: 10.3762/bjoc.8.124
Orientational order parameters of a de Vries-type ferroelectric liquid crystal obtained by polarized Raman spectroscopy and x-ray diffraction A. Sanchez-Castillo, M. A. Osipov, S. Jagiella, Z. H. Nguyen, M. Kaspar, V. Hamplova, J. Maclennan, F. Giesselmann Physical Review E 85, 061703 (2012) DOI: 10.1103/PhysRevE.85.061703
Increased mesophase range in liquid crystalline crown ethers via lower molecular symmetry M. Kaller, S. J. Beardsworth, P. Staffeld, S. Tussetschlaeger, F. Giesselmann, S. Laschat Liquid Crystals 39 (5), 607-618 (2012) DOI: 10.1080/02678292.2012.668720
Molecular theory of smectic ordering in liquid crystals with nanoscale segregation of different molecular fragments M. V. Gorkunov, M. A. Osipov, N. Kapernaum, D. Nonnenmacher, F. Giesselmann Physical Review E 84, 051704 (2011) DOI: 10.1103/PhysRevE.84.051704
Synthesis of novel phasmidic, gemini-type bisimidazolium salts J. Porada, M. Mansueto, S. Laschat, C. Stubenrauch, F. Giesselmann Synthesis-Stuttgart 18, 3032 (2011)
Substituted crown ethers as central units in discotic liquid crystals: effects of crown size and cation uptake M. Kaller, P. Staffeld, R. Haug, W. Frey, F. Giesselmann, S. Laschat Liquid Crystals 38 (5), 531-553 (2011) DOI: 10.1080/02678292.2011.558215
The effect of lactate unit number in compounds with azo group in the molecular core V. Novotna, V. Hamplova, M. Kaspar, N. Podoliak, A. Bubnov, M. Glogarova, D. Nonnenmacher, F. Giesselmann Liquid Crystals 38 (5), 649-655 (2011) DOI: 10.1080/02678292.2011.565426
Antiferroelectric phase in liquid crystalline compounds containing an azo group in their molecular core M. Kaspar, V. Novotna, V. Hamplova, N. Podoliak, D. Nonnenmacher, F. Giesselmann, M. Glogarova Liquid Crystals 38 (3), 309-315 (2011) DOI: 10.1080/02678292.2010.546532
Tuning the frustration between SmA- and SmC-promoting elements in liquid crystals with 'de Vries-like' properties Q. Song, D. Nonnenmacher, F. Giesselmann, R. P. Lemieux Chemical Communications 47, 4781-4783 (2011) DOI: 10.1039/C1CC10344J
Microfluidic Synthesis of Highly Shape-Anisotropic Particles from Liquid Crystalline Elastomers with Defined Director Field Configurations C. Ohm, N. Kapernaum, D. Nonnenmacher, F. Giesselmann, C. Serra, R. Zentel Journal of the American Chemical Society 133, 5305-5311 (2011) DOI: 10.1021/ja1095254
Conference Report: 38th German Topical Meeting on Liquid Crystals D. Nonnenmacher, F. Schoerg, N. Kapernaum, D. Krueerke Liquid Crystals Today 20, 22-24 (2011) DOI: 10.1080/1358314X.2011.549200
Study of de Vries behaviour of the smectic A* - smectic C* phase transition N. Podoliak, V. Novotna, M. Glogarova, V. Hamplova, M. Kaspar, A. Bubnov, N. Kapernaum, F. Giesselmann Phase Transitions 83, 1026-1036 (2010) DOI: 10.1080/01411594.2010.509615
Towards Efficient Dispersion of Carbon Nanotubes in Thermotropic Liquid Crystals S. Schymura, M. Kühnast, V. Lutz, S. Jagiella, U. Dettlaff-Weglikowska, S. Roth, F. Giesselmann, C. Tschierske, G. Scalia, J. Lagerwall Advanced Functional Materials 19, 3350 (2010) DOI: 10.1002/adfm.201000539
Unconventional ferroelectric behavior in nanosegregating liquid crystals with de Vries-like behavior D. Nonnenmacher, M. A. Osipov, J. C. Roberts, R. P. Lemieux, F. Giesselmann Physical Review E 82, 031703 (2010) DOI: 10.1103/PhysRevE.82.031703
Electrolyte Effects on the Chiral Induction and on Its Temperature Dependence in a Chiral Nematic Lyotropic Liquid Crystal U. C. Dawin, M. A. Osipov, F. Giesselmann Journal of Physical Chemistry B 114, 10327-10336 (2010) DOI: 10.1021/jp102547p
Systematic Variation of Length Ratio and the Formation of Smectic A and Smectic C Phases N. Kapernaum, C. S. Hartley, J. C. Roberts, F. Schoerg, D. Krueerke, R. P. Lemieux, F. Giesselmann ChemPhysChem 11, 2099-2107 (2010) DOI: 10.1002/cphc.201000243
Complex Chirality at the Nanoscale J. P. F. Lagerwall, F. Giesselmann ChemPhysChem 11, 975-977 (2010) DOI: 10.1002/cphc.200000055
Correlation between the molecular chirality index and the spontaneous polarisation in series of smectic C* liquid crystals S. Becke, S. Haller, M. A. Osipov, F. Giesselmann Molecular Physics 108, 573-582 (2010) DOI: 10.1080/00268971003623385
Chiral Induction in Lyotropic Liquid Crystals: Insights into the Role of Dopant Location and Dopant Dynamics U. C. Dawin, H. Dilger, E. Roduner, R. Scheuermann, A. Stoykov, F. Giesselmann Angewandte Chemie International Edition 49, 2427-2430 (2010) DOI: 10.1002/anie.200904107 and Angewandte Chemie 122, 2477-2480 (2010)
Orientational order parameters in liquid crystals: A comparative study of x-ray diffraction and polarized Raman spectroscopy results A. Sanchez-Castillo, M. A. Osipov, F. Giesselmann Physical Review E 81, 021707 (2010) DOI: 10.1103/PhysRevE.81.021707
Design of Liquid Crystals with "de Vries-like" Properties: Frustration between SmA- and SmC-Promoting Elements J. C. Roberts, N. Kapernaum, Q. Song, D. Nonnenmacher, K. Ayub, F. Giesselmann, R. P. Lemieux Journal of the American Chemical Society 132, 364-370 (2010)

2000-2009

Molecular length distribution and the formation of smectic phases N. Kapernaum, C. S. Hartley, J. C. Roberts, R. P. Lemieux, F. Giesselmann Beilstein Journal of Organic Chemistry 5, 65 (2009) DOI: 10.3762/bjoc.5.65
Saddle-shaped tetraphenylenes with peripheral gallic esters displaying columnar mesophases E. Wuckert, C. Hägele, F. Giesselmann, A. Baro, S. Laschat Beilstein Journal of Organic Chemistry 5, 57 (2009) DOI: 10.3762/bjoc.5.57
Influence of spacer chain lengths and polar terminal groups on the mesomorphic properties of tethered 5-phenylpyrimidines G. F. Starkulla, E. Kapatsina, A. Baro, F. Giesselmann, S. Tussetschläger, M. Kaller, S. Laschat Beilstein Journal of Organic Chemistry 5, 63 (2009)
The Orientational Order in So-Called de Vries Materials S. T. Lagerwall, P. Rudquist, F. Giesselmann Molecular Crystals and Liquid Crystals 510, 1282 - 1291 (2009)
Columnar Mesophases Controlled by Counterions in Potassium Complexes of Dibenzo[18]crown-6 Derivatives M. Kaller, S. Tussetschläger, P. Fischer, C. Deck, A. Baro, F. Giesselmann, S. Laschat Chemistry a European Journal 15, 9530-9542 (2009)
Electrolyte Effects on the Stability of Nematic and Lamellar Lyotropic Liquid Crystal Phases: Colligative and Ion-Specific Aspects U. Dawin, J. Lagerwall, F. Giesselmann Journal of Physical Chemistry B 113, 11414-11420 (2009)
First photoresponsive liquid-crystalline materials with small layer shrinkage at the transition to the ferroelectric phase V. Novotna, V. Hamplova, A. Bubnov, M. Kaspar, M. Glogarova, N. Kapernaum, S. Bezner, F. Giesselmann Journal of Materials Chemistry 19, 3992-3997 (2009)
Anomalous Odd-Even Effects in Columnar and Smectic Phases of Discotic Tetraphenylenes C. Hägele, E. Wuckert, S. Laschat, F. Giesselmann ChemPhysChem 10, 1291-1298 (2009)
p-Alkoxybiphenyls with guanidinium head groups displaying smectic mesophases S. Sauer, S. Saliba, S. Tussetschläger, A. Baro, W. Frey, F. Giesselmann, S. Laschat, W. Kantlehner Liquid Crystals 36 (3), 275-299 (2009)
On the balance between syn- and anticlinicity in smectic phases formed by achiral hockey-stick mesogens with and without chiral dopants E. Enz, S. Findeisen-Tandel, R. Dabrowski, F. Giesselmann, W. Weissflog, U. Baumeister, J. Lagerwall Journal of Materials Chemistry 19, 2950-2957 (2009)
On the Origin of the 'Giant' Electroclinic Effect in a 'De Vries'-Type Ferroelectric Liquid Crystal Material for Chirality Sensing Applications N. Kapernaum, D. M. Walba, E. Korblova, C. Zhu, C. Jones, Y. Shen, N. A. Clark, F. Giesselmann ChemPhysChem 10, 890-892 (2009) DOI: 10.1002/cphc.200900065
Chiral tetraphenylethenes as novel dopants for calamitic and discotic liquid crystals A. Schreivogel, U. Dawin, A. Baro, F. Giesselmann, S. Laschat Journal of Physical Organic Chemistry 22, 484-494 (2009)
Simple experimental assessment of smectic translational order parameters N. Kapernaum, F. Giesselmann Physical Review E 78, 062701 (2008) DOI: 10.1103/PhysRevE.78.062701
Effect of lateral methoxy substitution on mesomorphic and structural properties of ferroelectric liquid crystals A. Bubnov, M. Kaspar, V. Novotna, V. Hamplova, M. Glogarova, N. Kapernaum, F. Giesselmann Liquid Crystals 35 (11), 1329-1337 (2008)
Design of Liquid Crystals with "de Vries-Like" Properties: Organosiloxane Mesogen with a 5-Phenylpyrimidine Core J. C. Roberts, N. Kapernaum, F. Giesselmann, R. P. Lemieux Journal of the American Chemical Society 130, 13842-13843 (2008)
Fast switching organosiloxane ferroelectric liquid crystals J. C. Roberts, N. Kapernaum, F. Giesselmann, M. D. Wand, R. P. Lemieux Journal of Materials Chemistry 18, 5301-5306 (2008)
Guanidinium chlorides with triphenylene moieties displaying columnar mesophases S. Sauer, N. Steinke, A. Baro, S. Laschat, F. Giesselmann, W. Kantlehner Chemistry of Materials 20, 1909-1915 (2008)
Spontaneous macroscopic carbon nanotube alignment via colloidal suspension in hexagonal columnar lyotropic liquid crystals G. Scalia, C. von Bühler, C. Hägele, S. Roth, F. Giesselmann, J.P.F. Lagerwall Soft Matter 4, 570-576 (2008)
Carbon nanotubes in liquid crystals as versatile functional materials G. Scalia, J. P. F. Lagerwall, S. Schymura, M. Haluska, F. Giesselmann, S. Roth Physica Status Solidi B 244 (11), 4212-4217 (2007)
Antiferroelectric liquid crystals with induced intermediate polar phases and the effects of doping with carbon nanotubes J. P. F. Lagerwall, R. Dabrowski, G. Scalia Journal of Non-Crystalline Solids 353, 4411-4417 (2007)
Order-disorder molecular model of the smectic-A-smectic-C phase transition in materials with conventional and anomalously weak layer contraction M. V. Gorkunov, M. A. Osipov, J. P. F. Lagerwall and F. Giesselmann Physical Review E 76, 051706 (2007) DOI: 10.1103/PhysRevE.76.051706
Molecular model for de Vries type smectic-A-smectic-C phase transition in liquid crystals M. V. Gorkunov, F. Giesselmann, J. P. F. Lagerwall, T. J. Sluckin, and M. A. Osipov Physical Review E 75, 060701 (R) (2007)
Smectic E Mesophases in a Series of 2-(4-n-Alkylphenyl)indenes S. Schultz, G. Kehr, R. Fröhlich, G. Erker, N. Kapernaum, C. Hägele, F. Giesselmann, S. Laschat, R. Judele, and A. Baro Liquid Crystals 34 (8), 919-926 (2007)
Discotic Liquid Crystals: From Tailor-Made Synthesis to Plastic Electronics S. Laschat, A. Baro, N. Steinke, F. Giesselmann, C. Hägele, G. Scalia, R. Judele, E. Kapatsina, S. Sauer, A. Schreivogel, and M. Tosoni Angewandte Chemie International Edition 46, 4832-4887 (2007) and Angewandte Chemie 119, 4916-4973 (2007)
Experimental evidence of the electric-field induced critical behaviour of the smectic C*-alpha phase J. Hoffmann, F. Giesselmann, and W. Kuczynski Phase Transitions 80, 841-849 (2007)
Laser-light diffraction studies on the electric-field response of the helical director configuration in smectic-C* liquid crystals M. Krueger, and F. Giesselmann Journal of Applied Physics 101, 094102 (2007) DOI: 10.1063/1.2717609
Photoresponsive ferroelectric liquid-crystalline polymers P. Beyer, M. Krueger, F. Giesselmann, and R. Zentel Advanced Functional Materials 17, 109 (2007)
Nature of smectic A-C phase transitions in a series of ferroelectric liquid crystals S. Bezner, M. Krueger, V. Hamplova, M. Glogarova, and F. Giesselmann Journal of Chemical Physics 126, 054902 (2007)
Nanotube alignment using lyotropic liquid crystals J. Lagerwall, G. Scalia, M. Haluska, U. Dettlaff-Weglikowska, F. Giesselmann, and S. Roth Advanced Materials 19, 359-364 (2007) DOI: 10.1002/adma.200600889
The intrinsic photoferroelectric effect in the smectic C* phase of a chiral azobenzene A. Saipa, M. A. Osipov, K. W. Lanham, C. H. Chang, D. M. Walba, and F. Giesselmann, Journal of Materials Chemistry, 16, 4170-4177 (2006)
Effect of phenyl rings in liquid crystal molecules on SWCNTs studied by Raman spectroscopy G. Scalia, J. P. F. Lagerwall, M. Haluska, U. Dettlaff-Weglikowska, F. Giesselmann, and S. Roth Physica Status Solidi B 243, 3238-3241 (2006)
Simultaneous alignment and dispersion of carbon nanotubes with lyotropic liquid crystals J. P. F. Lagerwall, G. Scalia, M. Haluska, U. Dettlaff-Weglikowska, F. Giesselmann, and S. Roth Physica Status Solidi B 243, 3046-3049 (2006)
Electroclinic effect in chiral SmA* liquid crystals induced by atropisomeric biphenyl dopants: amplification of the electroclinic coefficient using achiral additives C. S. Hartley, N. Kapernaum, J. C. Roberts, F. Giesselmann and R. P. Lemieux Journal of Materials Chemistry 16, 2329-2337 (2006)
Columnar and Smectic Liquid Crystals Based On Crown Ethers N. Steinke, W. Frey, A. Baro, S. Laschat, C. Drees, M. Nimtz, C. Hägele and F. Giesselmann Chemistry European Journal 12, 1026-1035 (2006)
Current topics in smectic liquid crystals (Invited Review) J. P. F. Lagerwall and F. Giesselmann ChemPhysChem 7, 20-45 (2006) DOI: 10.1002/cphc.200500472
On the change in helix handedness at transitions between the SmC* and SmCa* phases in chiral smectic liquid crystals J. P. F. Lagerwall, M. A. Osipov, and F. Giesselmann Liquid Crystals 33, 625-633 (2006)
The peculiar optic, dielectric and x-ray diffraction properties of a fluorinated de Vries asymmetric-diffuse-cone-model ferroelectric liquid crystal J. P. F. Lagerwall, F. Giesselmann, E. Korblova, D. M. Walba, J. M. Oton, D. Coleman, R. Shao, and N. A.Clark Liquid Crystals 33, 17-23 (2006)
Columnar liquid crystals derived from ester-substituted tetraphenylenes E. Wuckert, S. Laschat, A. Baro, C. Hägele, F. Giesselmann, and H. Luftmann Liquid Crystals 33, 103-107 (2006)
Electrolyte effects on the nematic-isotropic phase transition in lyotropic liquid crystals P. K. Mukherjee, J. P. F. Lagerwall, and F. Giesselmann Liquid Crystals 32, 1301-1306 (2005)
Frustration between syn- and anticlinicity in mixtures of chiral and non-chiral tilted smectic-Ctype liquid crystals J. P. F. Lagerwall, G. Heppke, and F. Giesselmann European Physical Journal E 18, 113 - 121 (2005)
Chiral smectic C subphases induced by mixing a bistereogenic antiferroelectric liquid crystal with a non-chiral liquid crystal J. P. F. Lagerwall, F. Giesselmann, S. Rauch, G. Heppke, P. Rudquist, and S. T. Lagerwall Ferroelectrics 315, 221 - 230 (2005)
Orientational order in smectic liquid-crystalline phases of amphiphilic diols F. Giesselmann, R. Germer and A. Saipa Journal of Chemical Physics 123, 034906 (2005) DOI: 10.1063/1.1943972 and Virtual Journal of Biological Physics Research 10, 034906 (2005)
Demonstration of the antiferroelectric aspect of the helical superstructures in Sm-C, Sm-Cα, and Sm-Ca liquid crystals J. P. F. Lagerwall Physical Review E* 71, 051703 (2005)
Generation of frustrated liquid crystal phases by mixing an achiral nematic-smectic-C mesogen with an antiferroelectric chiral smectic liquid crystal J. P. F. Lagerwall, F. Giesselmann, C. Selbmann, S. Rauch, G. Heppke Journal of Chemical Physics 122, 144906 (2005)
Dielectric spectroscopy of 'de Vries' type smectic A* - C* transitions M. Krueger and F. Giesselmann Physical Review E 71, 041704 (2005) DOI: 10.1103/PhysRevE.71.041704
Differences between smectic homo- and copolysiloxanes as a consequence of microphase separation M. Rössle, D. Schollmeyer, R. Zentel, J.P.F. Lagerwall, F. Giesselmann and R. Stannarius Liquid Crystals 32, 533 (2005)
Landau model of the direct isotropic to smectic CA* phase transition in antiferroelectric liquid crystals P. K. Mukherjee and F. Giesselmann Journal of Chemical Physics 121(23), 12038 (2004)
Tetraphenylenes as novel saddle-shaped building blocks of columnar and smectic liquid crystals E. Wuckert, M. Dix, S. Laschat, A. Baro, J. L. Schulte, C. Hägele and F. Giesselmann Liquid Crystals 31(10), 1305-1309 (2004)
On the origin of high optical director tilt in a partially fluorinated orthoconic antiferroelectric liquid crystal mixture J. P. F. Lagerwall, A. Saipa, F. Giesselmann and R. Dabrowsky Liquid Crystals 31(9), 1175-1184 (2004)
A chameleon chiral polar liquid crystal: rod-shaped when nematic, bent-shaped when smectic J. P. F. Lagerwall, F. Giesselmann, M. D. Wand and D. M. Walba Chemistry of Materials 16, 3606-3615 (2004)
Ferroelectric polysiloxane liquid crystals with "de Vries"-type smectic A* - smectic C* transitions M. Rössle, R. Zentel, J. P. F. Lagerwall and F. Giesselmann Liquid Crystals 31(6), 883-887 (2004)
Columnar liquid crystals with a central crown ether unit A. Schultz, S. Laschat, A. Saipa, F. Giesselmann, M. Nimtz, J. L. Schulte, A. Baro and B. Miehlich Advanced Functional Materials 14(2), 163-168 (2004)
Flüssigkristalle: Funktionsmaterialien aus "weicher Materie" S. Laschat and F. Giesselmann Stuttgarter unikurier 91(1), 56-57 (2003)
On the phase sequence of antiferroelectric liquid crystals and its relation to orientational and translational order J. P. F. Lagerwall, P. Rudquist, S. T. Lagerwall, and F. Giesselmann Liquid Crystals* 30(4), 399 - 414 (2003) DOI: 10.1080/0267829031000069683
Antiferroelectric liquid-crystal mixture without smectic layer shrinkage at the direct Sm-A* - Sm-C* transition F. Giesselmann, J. P. F. Lagerwall, G. Andersson, and M. D. Radcliffe Physical Review E* 66, 051704 (2002)
Optical and x-ray evidence of the "de Vries" Sm-A* - SmC* transition in a non-layer-shrinkage ferroelectric liquid crystal with very weak interlayer tilt correlation J. P. F. Lagerwall, F. Giesselmann, and M. D. Radcliffe Physical Review E* 66, 031703 (2002) DOI: 10.1103/PhysRevE.66.031703
Thermodynamics of the photoferroelectric effect in smectic-C* liquid crystals A. Langhoff and F. Giesselmann* Journal of Chemical Physics 117(5), 2232 - 2237 (2002)
Kinetics of the photoferroelectric effect in chiral smectic-C liquid crystals studied by time-resolved measurements of spontaneous electric polarization and director tilt angle A. Langhoff and F. Giesselmann* ChemPhysChem 3, 424 -432 (2002)
A high resolution temperature scanning technique for optical studies of liquid crystal phase transitions A. Saipa and F. Giesselmann* Liquid Crystals 29(3), 347 - 353 (2002)
Photoferroelectric smectic-C* liquid crystal mixtures A. Langhoff and F. Giesselmann* Ferroelectrics 244, 283 - 293 (2000)

1989-1999

Anomalous electric conductivity in amphiphilic smectic liquid crystals with terminal diol-groups R. Germer, F. Giesselmann, P. Zugenmaier, and C. Tschierske Molecular Crystals and Liquid Crystals* 331, 643 - 650 (1999)
Smectic-A* - smectic-C* transition in a ferroelectric liquid crystal without smectic layer shrinkage F. Giesselmann, P. Zugenmaier, I. Dierking, S. T. Lagerwall, B. Stebler, M. Kaspar, V. Hamplova, and M. Glogarova Physical Review E* 60(1), 598 - 602 (1999)
Mesogenic behavior of optically active allenes - a new class of FLC R. Lunkwitz, C. Tschierske, F. Giesselmann, and H. Kruth Ferroelectrics* 212, 265 - 272 (1998)
Dielectric studies of the bias field effect on the soft mode of a ferroelectric liquid crystal J. Schacht, F. Giesselmann, P. Zugenmaier, and W. Kuczynski Ferroelectrics 209, 483-504 (1998)
Tilt-polarization coupling in a homologous series of ferroelectric liquid crystals J. Schacht, H. Baethge, F. Giesselmann, and P. Zugenmaier Journal of Materials Chemistry 8, 603-612 (1998).
Dispersion of the optical axes in smectic C* liquid crystals F. Giesselmann, A. Langhoff, and P. Zugenmaier Liquid Crystals 23, 927-931 (1997)
Experimental determination of Landau expansion coefficients in ferroelectric liquid crystals F. Giesselmann, A. Heimann, and P. Zugenmaier Ferroelectrics 200, 237-256 (1997)
Axial chiral allenylacetates as novel ferroelectric liquid crystals R. Lunkwitz, C. Tschierske, A. Langhoff, F. Giesselmann, and P. Zugenmaier Journal of Materials Chemistry 7, 1713-1721 (1997)
Polarization reversal current characteristics of horizontal chevron ferroelectric liquid crystal cells I. Dierking, F. Giesselmann, and P. Zugenmaier Ferroelectrics 198, 41-47 (1997)
Collective director modes at the transition to hexatic ferroelectric liquid crystalline phases J. Schacht, F. Giesselmann, P. Zugenmaier, and W. Kuczynski Physical Review E 55, 5633-5640 (1997)
Molecular-statistical description of the smectic-A - smectic-C phase transition F. Giesselmann and P. Zugenmaier Physical Review E 55, 5613-5622 (1997)
Temperature and bias-field dependences of dielectric behaviour in the antiferroelectric liquid crystal, (R)-MHPOBC J. Hou, J. Schacht, F. Giesselmann, and P. Zugenmaier Liquid Crystals 22, 409-417 (1997)
Investigations on the field-induced switching behaviour in an antiferroelectric liquid crystal J. Hou, J. Schacht, F. Giesselmann, and P. Zugenmaier Liquid Crystals 22, 401-407 (1997)
Induced polarization in the SmA* phase: A comparison of theoretical models and experimental methods D. Hermann, L. Komitov, S.T. Lagerwall, B. Stebler, R. Shashidar, J. V. Selinger, and F. Giesselmann Ferroelectrics 181, 371-378 (1996)
Additive partial chiral properties of a thermotropic liquid crystal with two chiral centers" I. Dierking, F. Giesselmann, P. Zugenmaier Molecular Crystals and Liquid Crystals 281, 79-90 (1996)
Coupling of liquid crystalline and polymer network properties in LC-elastomers M. Brehmer, R. Zentel, F. Giesselmann, R. Germer, and P. Zugenmaier Liquid Crystals 21, 589-596 (1996)
Dielectric properties of a ferroelectric liquid crystal in surface stabilized cells of various thickness J. Schacht, F. Giesselmann, P. Zugenmaier, and W. Kuczynski Ferroelectrics 173, 157-170 (1995)
Horizontal chevron configurations in ferroelectric liquid crystal cells induced by high electric fields I. Dierking, F. Giesselmann, J. Schacht, and P. Zugenmaier Liquid Crystals 19, 179-187 (1995)
Mesomorphic properties of a homologous series of chiral liquid crystals containing the a-chloroester group" J. Schacht, I. Dierking, F. Giesselmann, K. Mohr, H. Zaschke, W. Kuczynski, and P. Zugenmaier Liquid Crystals 19, 151-157 (1995)
Mean-field coefficients and electroclinic effect of a ferroelectric liquid crystal F. Giesselmann and P. Zugenmaier Physical Review E 52, 1762-1772 (1995) DOI: 10.1103/PhysRevE.52.1762
New diasterreomeric compound with cholesteric twist inversion I. Dierking, F. Giesselmann, P. Zugenmaier, K. Mohr, H. Zaschke, and W. Kuczynski Liquid Crystals 18, 443-449 (1995)
An optical method for the determination of the cholesteric pitch in liquid crystals" I. Dierking, F. Giesselmann, and P. Zugenmaier Zeitschrift für Naturforschung A 50a, 589-594 (1994)
The origin of the helical twist inversion in single component cholesteric liquid crystals I. Dierking, F. Giesselmann, P. Zugenmaier, K. Mohr, H. Zaschke, and W. Kuczynski Zeitschrift für Naturforschung A 49a, 1081-1086 (1994)
Properties of higher-ordered ferroelectric liquid crystal phases of a homologous series I. Dierking, F. Giesselmann, J. Kusserow, and P. Zugenmaier Liquid Crystals 17, 243-261 (1994)
TGBA* state in a homologous series of diarylethane a-chloroester ferroelectric liquid crystals I. Dierking, F. Giesselmann, J. Kusserow, and P. Zugenmaier Liquid Crystals 17, 17-22 (1994)
Electric field induced domain formation in surface stabilized ferroelectric liquid crystal cells I. Dierking, F. Giesselmann, J. Schacht, and P. Zugenmaier Materials Science Forum 157-162, 1393-1404 (1994)
Untersuchungen zum Mechanismus und zur Modellierung elektrooptischer Schaltvorgänge in ferroelektrischen Flüssigkristallphasen F. Giesselmann Mitteilungsblatt der TU Clausthal 77, 52-53 (1994)
Coupled director and layer reorientation in layer tilted ferroelectric smectic liquid crystal cells F. Giesselmann and P. Zugenmaier Molecular Crystals and Liquid Crystals 237, 121-143 (1993)
Ferroelectric liquid crystalline side group polymers: spacerlength variation and comparison to the monomers K. Kühnpast, J. Springer, G. Scherowsky, F. Giesselmann, and P. Zugenmaier Liquid Crystals 14, 861-869 (1993)
Computer simulation of the electrooptical switching process in ferroelectric liquid crystal cells with bookshelf geometry' F. Giesselmann and P. Zugenmaier Liquid Crystals 14, 389-404 (1993)
Investigations on the structure of a cholesteric phase with a temperature induced helix inversion and of the succeeding SC* phase in thin liquid crystal cells'' I. Dierking, F. Giesselmann, P. Zugenmaier, W. Kuczynski, S. T. Lagerwall, and B. Stebler Liquid Crystals 13, 45-55 (1993)
Electrooptical investigations on the three switching states of a chiral side group polymer' F. Giesselmann, P. Zugenmaier, G. Scherowsky, K. Kühnpast, and J. Springer Makromolekulare Chemie Rapid Communications 13, 489 - 497 (1992)
Strong electroacoustic effect in ferroelectric liquid crystal cells' F. Giesselmann, I. Dierking, and P. Zugenmaier Molecular Crystals and Liquid Crystals Letters 8, 105-110 (1992)
Determination of the rotational viscosity and the elastic constant from measurement of switching time and threshold voltage on planar oriented SC* phases in thin liquid crystal cells I. Dierking, F. Giesselmann, P. Zugenmaier, G. Pelzl, and P. Schiller Crystal Research and Technology 27, 727 - 739 (1992)
Director movement and potential function of surface stabilized ferroelectric liquid crystal cells by electrooptical investigations' F. Giesselmann and P. Zugenmaier Liquid Crystals 8, 361-373 (1990)
Synthesis and characterization of liquid crystalline side group polymers with benzylideneaniline as mesogenic moiety' F. Giesselmann and P. Zugenmaier Liquid Crystals 5, 1567-1581 (1989)