Vertical alignment of nematic liquid crystal by rubbing-free method on the SiC thin film layer

Hyun Chan Moon, Hyung Ku Kang, Jeoung Yeon Hwang, Yong Pil Park, Sung Hoon Lim, Jin Jang, Dae-Shik Seo

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We studied the nematic liquid crystal (NLC) aligning capabilities using the new alignment material of the silicon carbide (SiC) thin film. The SiC thin film exhibits good chemical and thermal stability. The good thermal and chemical stability make SiC an attractive candidate for electronic applications. A vertical alignment of nematic liquid crystal by atomic beam exposure on the SiC thin film surface was achieved. The about 87° of stable pretilt angle was achieved at the range from 30 to 45° of incident angle. The good LC alignment is maintained by the atomic beam alignment method on the SiC thin film surface until annealing temperature of 300°C. Consequently, the vertical alignment effect of liquid crystal and the good thermal stability by the atomic beam alignment method on the SiC thin film layer can be achieved.

Original languageEnglish
Pages (from-to)7017-7019
Number of pages3
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume45
Issue number9 A
DOIs
Publication statusPublished - 2006 Sep 7

Fingerprint

Nematic liquid crystals
Silicon carbide
silicon carbides
liquid crystals
alignment
Atomic beams
Thin films
atomic beams
thin films
Thermodynamic stability
thermal stability
Chemical stability
Liquid crystals
Annealing
annealing
electronics

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Moon, Hyun Chan ; Kang, Hyung Ku ; Hwang, Jeoung Yeon ; Park, Yong Pil ; Lim, Sung Hoon ; Jang, Jin ; Seo, Dae-Shik. / Vertical alignment of nematic liquid crystal by rubbing-free method on the SiC thin film layer. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 2006 ; Vol. 45, No. 9 A. pp. 7017-7019.
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abstract = "We studied the nematic liquid crystal (NLC) aligning capabilities using the new alignment material of the silicon carbide (SiC) thin film. The SiC thin film exhibits good chemical and thermal stability. The good thermal and chemical stability make SiC an attractive candidate for electronic applications. A vertical alignment of nematic liquid crystal by atomic beam exposure on the SiC thin film surface was achieved. The about 87° of stable pretilt angle was achieved at the range from 30 to 45° of incident angle. The good LC alignment is maintained by the atomic beam alignment method on the SiC thin film surface until annealing temperature of 300°C. Consequently, the vertical alignment effect of liquid crystal and the good thermal stability by the atomic beam alignment method on the SiC thin film layer can be achieved.",
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Vertical alignment of nematic liquid crystal by rubbing-free method on the SiC thin film layer. / Moon, Hyun Chan; Kang, Hyung Ku; Hwang, Jeoung Yeon; Park, Yong Pil; Lim, Sung Hoon; Jang, Jin; Seo, Dae-Shik.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 45, No. 9 A, 07.09.2006, p. 7017-7019.

Research output: Contribution to journalArticle

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AU - Moon, Hyun Chan

AU - Kang, Hyung Ku

AU - Hwang, Jeoung Yeon

AU - Park, Yong Pil

AU - Lim, Sung Hoon

AU - Jang, Jin

AU - Seo, Dae-Shik

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AB - We studied the nematic liquid crystal (NLC) aligning capabilities using the new alignment material of the silicon carbide (SiC) thin film. The SiC thin film exhibits good chemical and thermal stability. The good thermal and chemical stability make SiC an attractive candidate for electronic applications. A vertical alignment of nematic liquid crystal by atomic beam exposure on the SiC thin film surface was achieved. The about 87° of stable pretilt angle was achieved at the range from 30 to 45° of incident angle. The good LC alignment is maintained by the atomic beam alignment method on the SiC thin film surface until annealing temperature of 300°C. Consequently, the vertical alignment effect of liquid crystal and the good thermal stability by the atomic beam alignment method on the SiC thin film layer can be achieved.

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