Journal ArticleDOI
Observation of blue phases in chiral networks
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TLDR
In this article, the first observation of cholesteric blue phases in chiral anisotropic polymer networks was reported, in which two-component mixtures of a chiral and a non-chiral diacrylate were photopolymerized at constant temperature.Abstract:
We report the first observation of cholesteric blue phases in chiral anisotropic polymer networks. In two-component mixtures of a chiral and a non-chiral diacrylate, we observed typical textures of BPI, BPII and BPIII phases. By photopolymerization of these materials at constant temperature we obtained blue phase networks. After polymerization, the blue phases were stored, which enabled us to further study them without any temperature control.read more
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Polymer-stabilized liquid crystal blue phases
Hirotsugu Kikuchi,Hirotsugu Kikuchi,Masayuki Yokota,Yoshiaki Hisakado,Huai Yang,Tisato Kajiyama +5 more
TL;DR: This work shows the stabilization of blue phases over a temperature range of more than 60 K including room temperature (260–326 K), and demonstrates an electro-optical switching with a response time of the order of 10−4 s for the stabilized blue phases at room temperature.
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Semiconductor device, and manufacturing method thereof
TL;DR: In this article, the oxide semiconductor film has at least a crystallized region in a channel region, which is defined as a region of interest (ROI) for a semiconductor device.
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TL;DR: In this paper, a connection terminal portion is provided with a plurality of connection pads which are part of the connection terminal, each of which includes a first connection pad and a second connection pad having a line width different from that of the first one.
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Semiconductor device, electronic device, and method of manufacturing semiconductor device
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Journal ArticleDOI
Liquid crystal ‘blue phases’ with a wide temperature range
TL;DR: It is proposed that the unusual behaviour of these blue phase materials is due to their dimeric molecular structure and their very high flexoelectric coefficients, which sets out new theoretical challenges and potentially opens up new photonic applications.
References
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Journal ArticleDOI
Insitu photopolymerization of oriented liquid-crystalline acrylates .3. oriented polymer networks from a mesogenic diacrylate
TL;DR: In this paper, a photo-initiated chain crosslinking of the liquid-crystalline diacrylate 1,4-phenylene bis{4-[6-(acryloyloxy)hexyloxy]benzoate} (1) is studied.
Journal ArticleDOI
Electrically induced light scattering from anisotropic gels
TL;DR: Anisotropic gels were produced by photopolymerization of an oriented liquid-crystalline (LC) mixture containing LC diacrylates and conventional LC molecules as mentioned in this paper.
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Insitu photopolymerization of oriented liquid-crystalline acrylates .4. influence of a lateral methyl substituent on monomer and oriented polymer network properties of a mesogenic diacrylate
TL;DR: In this article, the mesomorphism and the molecular orientation of 1,4-phenylene bis{4-(6-(acryloyloxy)hexyloxy)benzoate} and its derivative with a methyl-substituent in the central phenylene group are studied.
Journal ArticleDOI
Anisotropic gels and plasticized networks formed by liquid crystal molecules
TL;DR: In this paper, two component mixtures containing liquid crystalline diacrylates and liquid crystal molecules with no reactive groups were made, and upon photopolymeriz-ation of the mixtures anisotropic networks containing liquid-crystal molecules which were not chemically attached to the networks were created.
Journal ArticleDOI
Plenary Lecture. The blue phases. A review of experiments
TL;DR: A review of the experimental aspects of research on the blue phases of chiral liquid crystals is given in this paper, where a general description of blue phases is given and their relation to other important condensed matter problems is mentioned.