4.4 Article

Effect of cyanobiphenyl homologue molecules on electro-optical properties in liquid crystal blue phases and polymer-stabilized blue phases

Journal

POLYMER JOURNAL
Volume 46, Issue 6, Pages 337-341

Publisher

SPRINGERNATURE
DOI: 10.1038/pj.2013.98

Keywords

blue phase; BP polymer stabilization; driving voltage; Kerr coefficient; n-CB homologue; optical response time; switching hysteresis

Funding

  1. IT R&D programme of MKE/KEIT [10041596]
  2. Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) [25248021]
  3. Grants-in-Aid for Scientific Research [25248021, 22107008] Funding Source: KAKEN
  4. Korea Evaluation Institute of Industrial Technology (KEIT) [10041596] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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The effects of cyanobiphenyl (CB) homologue molecules on the electro-optical properties of low-molecular-weight liquid crystal blue phase (BP) and polymer-stabilized BPs are investigated using chiral nematic liquid crystal mixtures that include CB molecules. The driving voltage and switching hysteresis of BPs were found to increase by polymer stabilization of the BP. It was also confirmed that the electro-optical rising time and Kerr coefficient of BPs vary with the molecular parity, as determined by the alkyl chain length of the n-CB homologue molecule dissolved in a chiral nematic liquid crystal mixture.

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