@article{40513,
  abstract     = {{Geometric-phase dielectric meta-lenses made of silicon with high numerical aperture and short focal lengths are fabricated and characterised. For circularly polarised light, the same meta-lens can act as a converging or diverging lens, depending on the handedness of the circular polarisation. This effect enables application for optical tweezers that trap or release µm-size polymer beads floating in a microfluidic channel on demand. An electrically addressable polarisation converter based on liquid crystals may be used to switch between the two states of polarisation, at which the light transmitted through the meta-lens is focused (trapping) or defocussed (releasing), respectively.}},
  author       = {{Geromel, René and Rennerich, Roman and Zentgraf, Thomas and Kitzerow, Heinz-Siegfried}},
  journal      = {{Liquid Crystals}},
  number       = {{7-10}},
  pages        = {{1193--1203}},
  publisher    = {{Taylor & Francis}},
  title        = {{{Geometric-phase metalens to be used for tunable optical tweezers in microfluidics}}},
  doi          = {{10.1080/02678292.2023.2171146}},
  volume       = {{50}},
  year         = {{2023}},
}

@article{39653,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>A detailed investigation of the energy levels of perylene-3,4,9,10-tetracarboxylic tetraethylester as a representative compound for the whole family of perylene esters was performed. It was revealed via electrochemical measurements that one oxidation and two reductions take place. The bandgaps determined via the electrochemical approach are in good agreement with the optical bandgap obtained from the absorption spectra via a Tauc plot. In addition, absorption spectra in dependence of the electrochemical potential were the basis for extensive quantum-chemical calculations of the neutral, monoanionic, and dianionic molecules. For this purpose, calculations based on density functional theory were compared with post-Hartree–Fock methods and the CAM-B3LYP functional proved to be the most reliable choice for the calculation of absorption spectra. Furthermore, spectral features found experimentally could be reproduced with vibronic calculations and allowed to understand their origins. In particular, the two lowest energy absorption bands of the anion are not caused by absorption of two distinct electronic states, which might have been expected from vertical excitation calculations, but both states exhibit a strong vibronic progression resulting in contributions to both bands.</jats:p>}},
  author       = {{Wiebeler, Christian and Vollbrecht, Joachim and Neuba, Adam and Kitzerow, Heinz-Siegfried and Schumacher, Stefan}},
  issn         = {{2045-2322}},
  journal      = {{Scientific Reports}},
  keywords     = {{Multidisciplinary}},
  number       = {{1}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Unraveling the electrochemical and spectroscopic properties of neutral and negatively charged perylene tetraethylesters}}},
  doi          = {{10.1038/s41598-021-95551-0}},
  volume       = {{11}},
  year         = {{2021}},
}

@article{39971,
  author       = {{Kitzerow, Heinz-Siegfried}},
  issn         = {{1358-314X}},
  journal      = {{Liquid Crystals Today}},
  keywords     = {{Materials Chemistry, Inorganic Chemistry, Condensed Matter Physics}},
  number       = {{1}},
  pages        = {{23--30}},
  publisher    = {{Informa UK Limited}},
  title        = {{{Pawel Pieranski – crystallographer of liquids and Alfred-Saupe-prize laureate 2019}}},
  doi          = {{10.1080/1358314x.2019.1625161}},
  volume       = {{28}},
  year         = {{2019}},
}

@article{39659,
  author       = {{Vollbrecht, Joachim and Stepen, Arne and Nolkemper, Karlo and Keuker-Baumann, Susanne and Kitzerow, Heinz-Siegfried}},
  issn         = {{1811-2382}},
  journal      = {{Polymer Science, Series C}},
  keywords     = {{Materials Chemistry, Polymers and Plastics, General Chemistry}},
  number       = {{1}},
  pages        = {{48--54}},
  publisher    = {{Pleiades Publishing Ltd}},
  title        = {{{Blends of Two Perylene Derivatives: Mesogenic Properties and Application As Emitter Materials in OLEDs}}},
  doi          = {{10.1134/s1811238218010095}},
  volume       = {{60}},
  year         = {{2018}},
}

@article{39665,
  author       = {{Knust, Steffen and Wahle, Markus and Kitzerow, Heinz-Siegfried}},
  issn         = {{1520-6106}},
  journal      = {{The Journal of Physical Chemistry B}},
  keywords     = {{Materials Chemistry, Surfaces, Coatings and Films, Physical and Theoretical Chemistry}},
  number       = {{19}},
  pages        = {{5110--5115}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Ferroelectric Liquid Crystals in Microcapillaries: Observation of Different Electro-optic Switching Mechanisms}}},
  doi          = {{10.1021/acs.jpcb.7b00307}},
  volume       = {{121}},
  year         = {{2017}},
}

@article{39663,
  author       = {{Vollbrecht, Joachim and Blazy, Simon and Dierks, Philipp and Peurifoy, Samuel and Bock, Harald and Kitzerow, Heinz-Siegfried}},
  issn         = {{1439-4235}},
  journal      = {{ChemPhysChem}},
  keywords     = {{Physical and Theoretical Chemistry, Atomic and Molecular Physics, and Optics}},
  number       = {{15}},
  pages        = {{2024--2032}},
  publisher    = {{Wiley}},
  title        = {{{Electroluminescent and Optoelectronic Properties of OLEDs with Bay-Extended, Distorted Perylene Esters as Emitter Materials}}},
  doi          = {{10.1002/cphc.201700502}},
  volume       = {{18}},
  year         = {{2017}},
}

@inproceedings{39660,
  author       = {{Atorf, B. and Rasouli, H. and Rennerich, R. and Muhlenbernd, H. and Reineke, B. J. and Zentgraf, T. and Kitzerow, Heinz-Siegfried}},
  booktitle    = {{2017 11th International Congress on Engineered Materials Platforms for Novel Wave Phenomena (Metamaterials)}},
  publisher    = {{IEEE}},
  title        = {{{Tunable plasmonic structures utilizing liquid crystals}}},
  doi          = {{10.1109/metamaterials.2017.8107880}},
  year         = {{2017}},
}

@misc{40638,
  author       = {{Wilkes, D. and Wittek, M. and Hoischen, A. and Kitzerow, Heinz-Siegfried and Nordendorf, G. and Schmidtke, J.}},
  title        = {{{Liquid crystal medium and liquid crystal display}}},
  year         = {{2017}},
}

@inproceedings{40635,
  author       = {{Meyers, Th. and Vollbrecht, J. and Vidor, F. and Reker, J. and Kitzerow, Heinz-Siegfried and Hilleringmann, Ulrich}},
  booktitle    = {{IEEE Xplore, MikroSystemTechnik 2017}},
  isbn         = {{978-3-8007-4491-6}},
  location     = {{Munich}},
  pages        = {{1--4}},
  publisher    = {{IEEE}},
  title        = {{{Organic Thin-Film Transistors for AMOLED Applications}}},
  year         = {{2017}},
}

@article{39662,
  author       = {{Atorf, Bernhard and Funck, Timon and Hegmann, Torsten and Kempter, Susanne and Liedl, Tim and Martens, Kevin and Mühlenbernd, Holger and Zentgraf, Thomas and Zhang, Bingru and Kitzerow, Heinz-Siegfried and Urbanski, Martin}},
  issn         = {{0267-8292}},
  journal      = {{Liquid Crystals}},
  keywords     = {{Condensed Matter Physics, General Materials Science, General Chemistry}},
  pages        = {{1--19}},
  publisher    = {{Informa UK Limited}},
  title        = {{{Liquid crystals and precious metal: from nanoparticle dispersions to functional plasmonic nanostructures}}},
  doi          = {{10.1080/02678292.2017.1359692}},
  year         = {{2017}},
}

@article{39674,
  author       = {{Atorf, B. and Rasouli, H. and Nordendorf, G. and Wilkes, D. and Kitzerow, Heinz-Siegfried}},
  issn         = {{0003-6951}},
  journal      = {{Applied Physics Letters}},
  keywords     = {{Physics and Astronomy (miscellaneous)}},
  number       = {{8}},
  publisher    = {{AIP Publishing}},
  title        = {{{Near infrared Kerr effect and description of field-induced phase transitions in polymer-stabilized blue phase liquid crystals}}},
  doi          = {{10.1063/1.4942604}},
  volume       = {{108}},
  year         = {{2016}},
}

@article{39968,
  author       = {{Dunmur, David and Kitzerow, Heinz-Siegfried}},
  issn         = {{1358-314X}},
  journal      = {{Liquid Crystals Today}},
  keywords     = {{Materials Chemistry, Inorganic Chemistry, Condensed Matter Physics}},
  number       = {{2}},
  pages        = {{24--29}},
  publisher    = {{Informa UK Limited}},
  title        = {{{The International Liquid Crystal Society 1990–2015}}},
  doi          = {{10.1080/1358314x.2016.1151994}},
  volume       = {{25}},
  year         = {{2016}},
}

@article{39669,
  abstract     = {{<p>Polymer-stabilized blue phase liquid crystal in-plane switching cell.</p>}},
  author       = {{Nordendorf, Gaby and Schmidtke, Jürgen and Wilkes, David and Kitzerow, Heinz-Siegfried}},
  issn         = {{2050-7526}},
  journal      = {{Journal of Materials Chemistry C}},
  keywords     = {{Materials Chemistry, General Chemistry}},
  number       = {{3}},
  pages        = {{518--521}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{Temperature-insensitive electro-optic response of polymer-stabilized blue phases}}},
  doi          = {{10.1039/c6tc04679g}},
  volume       = {{5}},
  year         = {{2016}},
}

@article{39673,
  author       = {{Wahle, M. and Ebel, J. and Wilkes, D. and Kitzerow, Heinz-Siegfried}},
  issn         = {{1094-4087}},
  journal      = {{Optics Express}},
  keywords     = {{Atomic and Molecular Physics, and Optics}},
  number       = {{20}},
  publisher    = {{The Optical Society}},
  title        = {{{Asymmetric band gap shift in electrically addressed blue phase photonic crystal fibers}}},
  doi          = {{10.1364/oe.24.022718}},
  volume       = {{24}},
  year         = {{2016}},
}

@article{39671,
  author       = {{Wahle, M. and Ebel, J. and Wilkes, D. and Kitzerow, Heinz-Siegfried}},
  issn         = {{1094-4087}},
  journal      = {{Optics Express}},
  keywords     = {{Atomic and Molecular Physics, and Optics}},
  number       = {{20}},
  publisher    = {{The Optical Society}},
  title        = {{{Asymmetric band gap shift in electrically addressed blue phase photonic crystal fibers}}},
  doi          = {{10.1364/oe.24.022718}},
  volume       = {{24}},
  year         = {{2016}},
}

@inbook{39670,
  author       = {{Sharma, Anshul and Urbanski, Martin and Mori, Taizo and Kitzerow, Heinz-Siegfried and Hegmann, Torsten}},
  booktitle    = {{Series in Soft Condensed Matter}},
  issn         = {{1793-1479}},
  publisher    = {{WORLD SCIENTIFIC}},
  title        = {{{Metallic and semiconducting nanoparticles in LCs}}},
  doi          = {{10.1142/9789814619264_0014}},
  year         = {{2016}},
}

@article{39686,
  author       = {{Zhang, Bingru and Kitzerow, Heinz-Siegfried}},
  issn         = {{1520-6106}},
  journal      = {{The Journal of Physical Chemistry B}},
  keywords     = {{Materials Chemistry, Surfaces, Coatings and Films, Physical and Theoretical Chemistry}},
  number       = {{12}},
  pages        = {{3250--3256}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{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}}},
  doi          = {{10.1021/acs.jpcb.6b01644}},
  volume       = {{120}},
  year         = {{2016}},
}

@article{39685,
  author       = {{Martens, Kevin and Funck, Timon and Kempter, Susanne and Roller, Eva-Maria and Liedl, Tim and Blaschke, Benno M. and Knecht, Peter and Garrido, José Antonio and Zhang, Bingru and Kitzerow, Heinz-Siegfried}},
  issn         = {{1613-6810}},
  journal      = {{Small}},
  keywords     = {{Biomaterials, Biotechnology, General Materials Science, General Chemistry}},
  number       = {{12}},
  pages        = {{1658--1666}},
  publisher    = {{Wiley}},
  title        = {{{Alignment and Graphene-Assisted Decoration of Lyotropic Chromonic Liquid Crystals Containing DNA Origami Nanostructures}}},
  doi          = {{10.1002/smll.201503382}},
  volume       = {{12}},
  year         = {{2016}},
}

@article{39694,
  author       = {{Zimmermann, Natalie and Jünnemann-Held, Gisela and Collings, Peter J. and Kitzerow, Heinz-Siegfried}},
  issn         = {{1744-683X}},
  journal      = {{Soft Matter}},
  keywords     = {{Condensed Matter Physics, General Chemistry}},
  number       = {{8}},
  pages        = {{1547--1553}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{Self-organized assemblies of colloidal particles obtained from an aligned chromonic liquid crystal dispersion}}},
  doi          = {{10.1039/c4sm02579b}},
  volume       = {{11}},
  year         = {{2015}},
}

@article{39688,
  author       = {{Urbanski, Martin and Mirzaei, Javad and Sharma, Anshul and Hofmann, Daniel and Kitzerow, Heinz-Siegfried and Hegmann, Torsten}},
  issn         = {{0267-8292}},
  journal      = {{Liquid Crystals}},
  keywords     = {{Condensed Matter Physics, General Materials Science, General Chemistry}},
  number       = {{2}},
  pages        = {{183--194}},
  publisher    = {{Informa UK Limited}},
  title        = {{{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}}},
  doi          = {{10.1080/02678292.2015.1082651}},
  volume       = {{43}},
  year         = {{2015}},
}