Electro-optical characteristics of liquid crystal device with nanoscale molybdenum trioxide (MoO 3) thin films

Hong Gyu Park, Dai Hyun Kim, Gun Young Lee, Lee Gon Kim, Young Hwan Kim, Hong Il Yoon, Dae-Shik Seo

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The liquid crystal (LC) alignment of molybdenum trioxide $(\hbox{MoO}-{3})$ thin layers through ion-beam (IB) irradiation leads to LC alignment characteristics that are superior to those obtained with rubbed polyimide (PI) layers. We found that LC alignment states on a thin MoO 3 layer are influenced by changes in IB irradiation energy. X-ray photoelectron spectroscopy analysis showed that the binding intensities of the Mo peaks that significantly decreased at IB irradiation energies greater than 2400 eV can homogeneously align with the LC and MoO 3 molecules. An examination of the electro-optical characteristics revealed that MoO 3 gave rise to a fast LC response time when compared to the PI layer.

Original languageEnglish
Article number6272316
Pages (from-to)1423-1425
Number of pages3
JournalIEEE Electron Device Letters
Volume33
Issue number10
DOIs
Publication statusPublished - 2012 Aug 22

Fingerprint

Liquid Crystals
Liquid crystals
Molybdenum
Thin films
Ion beams
Irradiation
Polyimides
X ray photoelectron spectroscopy
molybdenum trioxide
Molecules

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Park, Hong Gyu ; Kim, Dai Hyun ; Lee, Gun Young ; Kim, Lee Gon ; Kim, Young Hwan ; Yoon, Hong Il ; Seo, Dae-Shik. / Electro-optical characteristics of liquid crystal device with nanoscale molybdenum trioxide (MoO 3) thin films. In: IEEE Electron Device Letters. 2012 ; Vol. 33, No. 10. pp. 1423-1425.
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abstract = "The liquid crystal (LC) alignment of molybdenum trioxide $(\hbox{MoO}-{3})$ thin layers through ion-beam (IB) irradiation leads to LC alignment characteristics that are superior to those obtained with rubbed polyimide (PI) layers. We found that LC alignment states on a thin MoO 3 layer are influenced by changes in IB irradiation energy. X-ray photoelectron spectroscopy analysis showed that the binding intensities of the Mo peaks that significantly decreased at IB irradiation energies greater than 2400 eV can homogeneously align with the LC and MoO 3 molecules. An examination of the electro-optical characteristics revealed that MoO 3 gave rise to a fast LC response time when compared to the PI layer.",
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Electro-optical characteristics of liquid crystal device with nanoscale molybdenum trioxide (MoO 3) thin films. / Park, Hong Gyu; Kim, Dai Hyun; Lee, Gun Young; Kim, Lee Gon; Kim, Young Hwan; Yoon, Hong Il; Seo, Dae-Shik.

In: IEEE Electron Device Letters, Vol. 33, No. 10, 6272316, 22.08.2012, p. 1423-1425.

Research output: Contribution to journalArticle

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AU - Kim, Young Hwan

AU - Yoon, Hong Il

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AB - The liquid crystal (LC) alignment of molybdenum trioxide $(\hbox{MoO}-{3})$ thin layers through ion-beam (IB) irradiation leads to LC alignment characteristics that are superior to those obtained with rubbed polyimide (PI) layers. We found that LC alignment states on a thin MoO 3 layer are influenced by changes in IB irradiation energy. X-ray photoelectron spectroscopy analysis showed that the binding intensities of the Mo peaks that significantly decreased at IB irradiation energies greater than 2400 eV can homogeneously align with the LC and MoO 3 molecules. An examination of the electro-optical characteristics revealed that MoO 3 gave rise to a fast LC response time when compared to the PI layer.

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