Počet záznamů: 1
Mesomorphic, electro-optic and structural properties of binary liquid crystalline mixtures with ferroelectric and antiferroelectric liquid crystalline behaviour
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SYSNO ASEP 0494604 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Mesomorphic, electro-optic and structural properties of binary liquid crystalline mixtures with ferroelectric and antiferroelectric liquid crystalline behaviour Tvůrce(i) Fitas, J. (PL)
Marzec, M. (PL)
Szymkowiak, M. (PL)
Jaworska-Golab, T. (PL)
Deptuch, A. (PL)
Tykarska, M. (PL)
Kurp, K. (PL)
Żurowska, M. (PL)
Bubnov, Alexej (FZU-D) RID, ORCID, SAICelkový počet autorů 9 Zdroj.dok. Phase Transitions. - : Taylor & Francis - ISSN 0141-1594
Roč. 91, č. 9-10 (2018), s. 1017-1026Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova liquid crystal ; fluorinated materials ; ferroelectric phase ; antiferroelectric phase ; mesomorphic behaviour ; binary mixture ; spontaneous polarisation Vědní obor RIV JJ - Ostatní materiály Obor OECD Materials engineering CEP GA16-12150S GA ČR - Grantová agentura ČR Institucionální podpora FZU-D - RVO:68378271 UT WOS 000446595600013 EID SCOPUS 85052106396 DOI 10.1080/01411594.2018.1506883 Anotace Two new binary liquid crystalline mixtures composed from the chiral liquid crystalline materials with fluorinated non-chiral chain and without lateral substitution at the molecular core have been designed and investigated by polarisation optical microscopy, differential scanning calorimetry, broad-band dielectric spectroscopy, and X-ray techniques. Both mixtures possess the paraelectric orthogonal smectic A*, the tilted ferroelectric smectic C* and the antiferroelectric smectic CA* phases over a reasonably broad temperature range. The gained results reveal a considerable improvement of (i) the broadness of the mesophases temperature range of the ferroelectric and antiferroelectric phases (up to 130 K broad) and (ii) electro-optical properties, namely the spontaneous polarisation (up to 200 nC/cm2) and tilt angle (higher than 40o), with respect to that of the original pure compounds. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2019
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