Photoresponsive stripe pattern in achiral azobenzene liquid crystals

Kunihiko Okano; Satoshi Aya; Fumito Araoka; Haruki Obara; Shiori Sato; Takashi Yamashita; Hideo Takezoe; Kouichi Asakura

doi:10.1002/cphc.201402578

Photoresponsive stripe pattern in achiral azobenzene liquid crystals

Kunihiko Okano, Satoshi Aya, Fumito Araoka, Haruki Obara, Shiori Sato, Takashi Yamashita, Hideo Takezoe, Kouichi Asakura

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研究成果: Article › 査読

抄録

A periodic stripe pattern is found in the nematic phase close to the smectic phase of photoresponsive achiral liquid-crystalline compounds. The origin of the stripe patterns can be ascribed to an extremely large bent elastic constant K₃₃. In addition, we succeeded in controlling the pattern by the following two methods: 1) the stripe disappears by a trans-cis photoisomerization upon UV light irradiation and reappears upon light termination, and 2) the stripe pattern is stabilized over the whole nematic phase, at approximately 10 ° C, by polymerization of the compounds.

本文言語	English
ページ（範囲）	95-98
ページ数	4
ジャーナル	ChemPhysChem
巻	16
号	1
DOI	https://doi.org/10.1002/cphc.201402578
出版ステータス	Published - 2015 1月 2

ASJC Scopus subject areas

原子分子物理学および光学
物理化学および理論化学

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10.1002/cphc.201402578

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title = "Photoresponsive stripe pattern in achiral azobenzene liquid crystals",

abstract = "A periodic stripe pattern is found in the nematic phase close to the smectic phase of photoresponsive achiral liquid-crystalline compounds. The origin of the stripe patterns can be ascribed to an extremely large bent elastic constant K33. In addition, we succeeded in controlling the pattern by the following two methods: 1) the stripe disappears by a trans-cis photoisomerization upon UV light irradiation and reappears upon light termination, and 2) the stripe pattern is stabilized over the whole nematic phase, at approximately 10 ° C, by polymerization of the compounds.",

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T1 - Photoresponsive stripe pattern in achiral azobenzene liquid crystals

AU - Okano, Kunihiko

AU - Aya, Satoshi

AU - Araoka, Fumito

AU - Obara, Haruki

AU - Sato, Shiori

AU - Yamashita, Takashi

AU - Takezoe, Hideo

AU - Asakura, Kouichi

PY - 2015/1/2

Y1 - 2015/1/2

N2 - A periodic stripe pattern is found in the nematic phase close to the smectic phase of photoresponsive achiral liquid-crystalline compounds. The origin of the stripe patterns can be ascribed to an extremely large bent elastic constant K33. In addition, we succeeded in controlling the pattern by the following two methods: 1) the stripe disappears by a trans-cis photoisomerization upon UV light irradiation and reappears upon light termination, and 2) the stripe pattern is stabilized over the whole nematic phase, at approximately 10 ° C, by polymerization of the compounds.

AB - A periodic stripe pattern is found in the nematic phase close to the smectic phase of photoresponsive achiral liquid-crystalline compounds. The origin of the stripe patterns can be ascribed to an extremely large bent elastic constant K33. In addition, we succeeded in controlling the pattern by the following two methods: 1) the stripe disappears by a trans-cis photoisomerization upon UV light irradiation and reappears upon light termination, and 2) the stripe pattern is stabilized over the whole nematic phase, at approximately 10 ° C, by polymerization of the compounds.

KW - Cybotactic cluster

KW - Liquid crystals

KW - Nematic phase

KW - Photochemistry

KW - Stripe pattern

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Photoresponsive stripe pattern in achiral azobenzene liquid crystals

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