Anisotropie orientation control of nonpolar organic nanocrystal dispersion by external fields

Yuji Kaneko; Satoru Shimada; Tsunenobu Onodera; Tatsumi Kimura; Hiro Matsuda; Shuji Okada; Hitoshi Kasai; Hidetoshi Oikawa; Yozo Kakudate; Hachiro Nakanishi

doi:10.1143/JJAP.46.6893

Anisotropie orientation control of nonpolar organic nanocrystal dispersion by external fields

Yuji Kaneko, Satoru Shimada, Tsunenobu Onodera, Tatsumi Kimura, Hiro Matsuda, Shuji Okada, Hitoshi Kasai, Hidetoshi Oikawa, Yozo Kakudate, Hachiro Nakanishi

Materials-Measurement Hybrid Research Center

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

12 Citations (Scopus)

Abstract

We have studied the external-field-induced orientation of fibriform polydiacetylene nanocrystals in dispersions that we fabricated through reprecipitation followed by orientational fixation. The polymer employed was poly[1,6-di(N-carbazolyl)-2,4-hexadiyne] (polyDCHD). An AC electric field and a magnetic field were both effective agents for controlling the orientation of the nanocrystals in the dispersions; in contrast, we observed no orientational effect when applying a DC electric field. The application of the AC electric and magnetic fields led to different anisotropic orientations of the same dispersed nanocrystals. The degree of orientation depended on the AC frequency and the strength of the AC electric or magnetic field.

Original language	English
Pages (from-to)	6893-6897
Number of pages	5
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	46
Issue number	10 A
DOIs	https://doi.org/10.1143/JJAP.46.6893
Publication status	Published - 2007 Oct 9

Keywords

Electric field
Fixation
Magnetic field
Nanocrystal dispersion
Orientation
PolyDCHD

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.1143/JJAP.46.6893

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Kaneko, Y., Shimada, S., Onodera, T., Kimura, T., Matsuda, H., Okada, S., Kasai, H., Oikawa, H., Kakudate, Y., & Nakanishi, H. (2007). Anisotropie orientation control of nonpolar organic nanocrystal dispersion by external fields. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 46(10 A), 6893-6897. https://doi.org/10.1143/JJAP.46.6893

Kaneko, Y, Shimada, S, Onodera, T, Kimura, T, Matsuda, H, Okada, S, Kasai, H, Oikawa, H, Kakudate, Y & Nakanishi, H 2007, 'Anisotropie orientation control of nonpolar organic nanocrystal dispersion by external fields', Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, vol. 46, no. 10 A, pp. 6893-6897. https://doi.org/10.1143/JJAP.46.6893

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abstract = "We have studied the external-field-induced orientation of fibriform polydiacetylene nanocrystals in dispersions that we fabricated through reprecipitation followed by orientational fixation. The polymer employed was poly[1,6-di(N-carbazolyl)-2,4-hexadiyne] (polyDCHD). An AC electric field and a magnetic field were both effective agents for controlling the orientation of the nanocrystals in the dispersions; in contrast, we observed no orientational effect when applying a DC electric field. The application of the AC electric and magnetic fields led to different anisotropic orientations of the same dispersed nanocrystals. The degree of orientation depended on the AC frequency and the strength of the AC electric or magnetic field.",

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author = "Yuji Kaneko and Satoru Shimada and Tsunenobu Onodera and Tatsumi Kimura and Hiro Matsuda and Shuji Okada and Hitoshi Kasai and Hidetoshi Oikawa and Yozo Kakudate and Hachiro Nakanishi",

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AU - Kaneko, Yuji

AU - Shimada, Satoru

AU - Onodera, Tsunenobu

AU - Kimura, Tatsumi

AU - Matsuda, Hiro

AU - Okada, Shuji

AU - Kasai, Hitoshi

AU - Oikawa, Hidetoshi

AU - Kakudate, Yozo

AU - Nakanishi, Hachiro

PY - 2007/10/9

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N2 - We have studied the external-field-induced orientation of fibriform polydiacetylene nanocrystals in dispersions that we fabricated through reprecipitation followed by orientational fixation. The polymer employed was poly[1,6-di(N-carbazolyl)-2,4-hexadiyne] (polyDCHD). An AC electric field and a magnetic field were both effective agents for controlling the orientation of the nanocrystals in the dispersions; in contrast, we observed no orientational effect when applying a DC electric field. The application of the AC electric and magnetic fields led to different anisotropic orientations of the same dispersed nanocrystals. The degree of orientation depended on the AC frequency and the strength of the AC electric or magnetic field.

AB - We have studied the external-field-induced orientation of fibriform polydiacetylene nanocrystals in dispersions that we fabricated through reprecipitation followed by orientational fixation. The polymer employed was poly[1,6-di(N-carbazolyl)-2,4-hexadiyne] (polyDCHD). An AC electric field and a magnetic field were both effective agents for controlling the orientation of the nanocrystals in the dispersions; in contrast, we observed no orientational effect when applying a DC electric field. The application of the AC electric and magnetic fields led to different anisotropic orientations of the same dispersed nanocrystals. The degree of orientation depended on the AC frequency and the strength of the AC electric or magnetic field.

KW - Electric field

KW - Fixation

KW - Magnetic field

KW - Nanocrystal dispersion

KW - Orientation

KW - PolyDCHD

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Anisotropie orientation control of nonpolar organic nanocrystal dispersion by external fields

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Keywords

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