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Funding
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DFG Gi243/3 |
| Cooperation
with |
 Prof. R. P. Lemieux, Queen's University, Kingston,
Ontario, Canada
Prof. D. M. Walba, University of Colorado at Boulder,
USA
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| Description of
project |
Ferroelectric materials that change their ferroelectric
properties, such as spontaneous electric polarization or coercive field,
by interaction with light are denoted as photoferroelectrics. In liquid
crystals (LCs) photoferroelectric properties are easily obtained by dissolving
small amounts of photochemically isomerizable dopants in ferroelectric
LC (FLC) host phases. Since the electric and electro-optical properties
of photoferroelectric LCs can be modulated by light, they are considered
as promising candidates for photonic materials and molecular switches.
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| Publications |
Mesomorphie
und Ferroelektrizität eines chiralen photoisomerisierbaren Flüssigkristalls
Diplomarbeit, Alexander Saipa (2002)
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)
Untersuchungen zum Mechanismus des photoferroelektrischen Effekts chiraler
smektischer Flüssigkristalle
Dissertation, Arne Langhoff (2002)
Photoferroelectric smectic-C* liquid crystal mixtures
A. Langhoff and F. Giesselmann*
Ferroelectrics 244, 283 - 293 (2000)
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Contact
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f.giesselmann... |
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nk) | © Universität
Stuttgart | Impressum