Fast switching organosiloxane ferroelectric liquid crystals

We report the synthesis and characterization of organosiloxane 2-phenylpyrimidine mesogens with chiral (R,R)-2,3-difluorooctyloxy side-chains. These compounds form chiral SmA* and SmC* phases, and show remarkable electro-optical and alignment properties as surface-stabilized ferroelectric liquid cry...

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Bibliographic Details
Published inJournal of materials chemistry Vol. 18; no. 43; pp. 5301 - 5306
Main Authors ROBERTS, Jeffrey C, KAPERNAUM, Nadia, GIESSELMANN, Frank, WAND, Michael D, LEMIEUX, Robert P
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 01.01.2008
Subjects
Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric, piezoelectric, ferroelectric and antiferroelectric materials
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Liquids and liquid crystals
Organic polymers
Physicochemistry of polymers
Physics
Properties and characterization
Structure, morphology and analysis
Ferroelectric switching
Ferroelectric liquid crystals
Chiral compound
Electrooptical properties
Mesogenic compound
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Summary:We report the synthesis and characterization of organosiloxane 2-phenylpyrimidine mesogens with chiral (R,R)-2,3-difluorooctyloxy side-chains. These compounds form chiral SmA* and SmC* phases, and show remarkable electro-optical and alignment properties as surface-stabilized ferroelectric liquid crystals, including one of the fastest optical rise times (11 mus at T-TAC = -10 K and 6 V mum-1) for an organosiloxane mesogen.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0959-9428
1364-5501
DOI:10.1039/b810209k