Dual-frequency-addressable photochromic cholesteric mixture with photo- and electro-switchable optical properties

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00585808" target="_blank" >RIV/68378271:_____/24:00585808 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.molliq.2024.124560" target="_blank" >https://doi.org/10.1016/j.molliq.2024.124560</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.molliq.2024.124560" target="_blank" >10.1016/j.molliq.2024.124560</a>

Result language
angličtina
Original language name
Dual-frequency-addressable photochromic cholesteric mixture with photo- and electro-switchable optical properties
Original language description
Cholesteric liquid crystalline mixture with photo-, electro-controllable optical properties was prepared and the features of its switching behavior were demonstrated. The working principle of the obtained switchable cell is based on using dual-frequency-addressable nematic mixture that enables effective control of selectively reflected planar and scattered focal conics texture by applied field frequency modulation. The nematic mixture was doped with the chiral substance in order to induce a cholesteric structure formation with selective light reflection in visible spectral range. Application of low-frequency electric field as well as UV irradiation induces short-wavelength shift of the selective light reflection. The possibility of photopatterning of the obtained electrooptic cells by UV irradiation through mask is demonstrated. It is shown, that application of electric field of different strength and frequency enables smart control of the photorecorded image contrast.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering

Project
<a href="/en/project/GA22-16499S" target="_blank" >GA22-16499S: Chirality as a tool for controlling photoresponsiveness of supramolecular arrangements</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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