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

doi:10.1080/10587250108028618

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

Polymer Hybrid Materials Research Center

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	11-17
Number of pages	7
Journal	Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume	367
DOIs	https://doi.org/10.1080/10587250108028618
Publication status	Published - 2001 Jan 1

Keywords

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

ASJC Scopus subject areas

Condensed Matter Physics

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10.1080/10587250108028618

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Okazoe, S., Fujita, S., Kasai, H., Okada, S., Oikawa, H., & Nakanishi, H. (2001). Electric-field-induced orientation of polar organic microcrystals with different crystal sizes dispersed in liquid as a novel optical devices. Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, 367, 11-17. https://doi.org/10.1080/10587250108028618

Electric-field-induced orientation of polar organic microcrystals with different crystal sizes dispersed in liquid as a novel optical devices. / Okazoe, Satoru; Fujita, Satoshi; Kasai, Hitoshi; Okada, Shuji; Oikawa, Hidetoshi; Nakanishi, Hachiro.

In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 367, 01.01.2001, p. 11-17.

Research output: Contribution to journal › Article › peer-review

Okazoe, S, Fujita, S, Kasai, H, Okada, S, Oikawa, H & Nakanishi, H 2001, 'Electric-field-induced orientation of polar organic microcrystals with different crystal sizes dispersed in liquid as a novel optical devices', Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, vol. 367, pp. 11-17. https://doi.org/10.1080/10587250108028618

Okazoe S, Fujita S, Kasai H, Okada S, Oikawa H, Nakanishi H. Electric-field-induced orientation of polar organic microcrystals with different crystal sizes dispersed in liquid as a novel optical devices. Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals. 2001 Jan 1;367:11-17. https://doi.org/10.1080/10587250108028618

Okazoe, Satoru ; Fujita, Satoshi ; Kasai, Hitoshi ; Okada, Shuji ; Oikawa, Hidetoshi ; Nakanishi, Hachiro. / Electric-field-induced orientation of polar organic microcrystals with different crystal sizes dispersed in liquid as a novel optical devices. In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals. 2001 ; Vol. 367. pp. 11-17.

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AU - Oikawa, Hidetoshi

AU - Nakanishi, Hachiro

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AB - 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".

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