Electric-field-induced orientation of polar organic microcrystals with different crystal sizes dispersed in liquid as a novel optical devices

Satoru Okazoe, Satoshi Fujita, Hitoshi Kasai, Shuji Okada, Hidetoshi Oikawa, Hachiro Nakanishi

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    DAST microcrystals with different crystal sizes, 250 nm to 600 nm, were prepared successfully by adding a special polymer in the inverse reprepicitation method. The relative changes in absorbance between applied and unapplied electric field were found to be approximately proportional to the crystal sizes. The applied electric field was ca. 300 V/ cm and remarkably low, compared with ordinary liquid crystal systems. This result reflects that DAST microcrystal has huge dipole moment, which depended on crystal size, and the dispersion system is regarded as a new concept of "Liquid-and-Crystal".

    Original languageEnglish
    Pages (from-to)11-17
    Number of pages7
    JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
    Volume367
    DOIs
    Publication statusPublished - 2001 Jan 1

    Keywords

    • DAST
    • Dipole moment
    • Liquid-and-crystal system
    • Microcrystals
    • Reprepicitation method
    • Size dependence

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Fingerprint

    Dive into the research topics of 'Electric-field-induced orientation of polar organic microcrystals with different crystal sizes dispersed in liquid as a novel optical devices'. Together they form a unique fingerprint.

    Cite this