Creation of a voltage controllable micro-liquid crystal domain using the atomic force microscope rubbing for surface modification

Cheol Kim Wan; Sunae Song; Il Cheol Jeon; Dae Shik Seo; Myong Hoon Lee; Seung Hee Lee

doi:10.1143/jjap.42.l607

Creation of a voltage controllable micro-liquid crystal domain using the atomic force microscope rubbing for surface modification

Cheol Kim Wan, Sunae Song, Il Cheol Jeon, Dae Shik Seo, Myong Hoon Lee, Seung Hee Lee

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Letter

Abstract

We have studied the liquid crystal (LC) alignment on a modified homeotropic polymer surface using an atomic force microscopy (AFM) rubbing. The nano-rubbing by AFM shows well-defined LC alignment and the rubbed surface induces the LC to be planarly aligned. The hybrid aligned nematic LC cell as made shows dynamic stability while increasing voltage without causing disclination lines and asymmetric light transmittance in oblique viewing angles. The result indicates that the pretilt angle is generated from the homeotropic alignment layer to the initial scanning direction, and the device is useful as a light modulator or dynamic phase retarder in the micron or nano region.

Original language	English
Pages (from-to)	L607-L609
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	42
Issue number	6 A
DOIs	https://doi.org/10.1143/jjap.42.l607
Publication status	Published - 2003 Jun 1

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy (miscellaneous)
Physics and Astronomy(all)

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10.1143/jjap.42.l607

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Wan, C. K., Song, S., Jeon, I. C., Seo, D. S., Lee, M. H., & Lee, S. H. (2003). Creation of a voltage controllable micro-liquid crystal domain using the atomic force microscope rubbing for surface modification. Japanese Journal of Applied Physics, Part 2: Letters, 42(6 A), L607-L609. https://doi.org/10.1143/jjap.42.l607

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title = "Creation of a voltage controllable micro-liquid crystal domain using the atomic force microscope rubbing for surface modification",

abstract = "We have studied the liquid crystal (LC) alignment on a modified homeotropic polymer surface using an atomic force microscopy (AFM) rubbing. The nano-rubbing by AFM shows well-defined LC alignment and the rubbed surface induces the LC to be planarly aligned. The hybrid aligned nematic LC cell as made shows dynamic stability while increasing voltage without causing disclination lines and asymmetric light transmittance in oblique viewing angles. The result indicates that the pretilt angle is generated from the homeotropic alignment layer to the initial scanning direction, and the device is useful as a light modulator or dynamic phase retarder in the micron or nano region.",

author = "Wan, {Cheol Kim} and Sunae Song and Jeon, {Il Cheol} and Seo, {Dae Shik} and Lee, {Myong Hoon} and Lee, {Seung Hee}",

year = "2003",

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doi = "10.1143/jjap.42.l607",

language = "English",

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Creation of a voltage controllable micro-liquid crystal domain using the atomic force microscope rubbing for surface modification. / Wan, Cheol Kim; Song, Sunae; Jeon, Il Cheol; Seo, Dae Shik; Lee, Myong Hoon; Lee, Seung Hee.

In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 42, No. 6 A, 01.06.2003, p. L607-L609.

Research output: Contribution to journal › Letter

TY - JOUR

T1 - Creation of a voltage controllable micro-liquid crystal domain using the atomic force microscope rubbing for surface modification

AU - Wan, Cheol Kim

AU - Song, Sunae

AU - Jeon, Il Cheol

AU - Seo, Dae Shik

AU - Lee, Myong Hoon

AU - Lee, Seung Hee

PY - 2003/6/1

Y1 - 2003/6/1

N2 - We have studied the liquid crystal (LC) alignment on a modified homeotropic polymer surface using an atomic force microscopy (AFM) rubbing. The nano-rubbing by AFM shows well-defined LC alignment and the rubbed surface induces the LC to be planarly aligned. The hybrid aligned nematic LC cell as made shows dynamic stability while increasing voltage without causing disclination lines and asymmetric light transmittance in oblique viewing angles. The result indicates that the pretilt angle is generated from the homeotropic alignment layer to the initial scanning direction, and the device is useful as a light modulator or dynamic phase retarder in the micron or nano region.

AB - We have studied the liquid crystal (LC) alignment on a modified homeotropic polymer surface using an atomic force microscopy (AFM) rubbing. The nano-rubbing by AFM shows well-defined LC alignment and the rubbed surface induces the LC to be planarly aligned. The hybrid aligned nematic LC cell as made shows dynamic stability while increasing voltage without causing disclination lines and asymmetric light transmittance in oblique viewing angles. The result indicates that the pretilt angle is generated from the homeotropic alignment layer to the initial scanning direction, and the device is useful as a light modulator or dynamic phase retarder in the micron or nano region.

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