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; Hongil Yoon; Dae Shik Seo

doi:10.1109/LED.2012.2207875

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, Hongil Yoon, Dae Shik Seo

Department of Electrical and Electronic Engineering

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

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 language	English
Article number	6272316
Pages (from-to)	1423-1425
Number of pages	3
Journal	IEEE Electron Device Letters
Volume	33
Issue number	10
DOIs	https://doi.org/10.1109/LED.2012.2207875
Publication status	Published - 2012

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/LED.2012.2207875

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

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.",

keywords = "Electro-optical (EO) properties, ion-beam (IB) irradiation, liquid crystal (LC), molybdenum trioxide (MoO )",

author = "Park, {Hong Gyu} and Kim, {Dai Hyun} and Lee, {Gun Young} and Kim, {Lee Gon} and Kim, {Young Hwan} and Hongil Yoon and Seo, {Dae Shik}",

year = "2012",

doi = "10.1109/LED.2012.2207875",

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T1 - Electro-optical characteristics of liquid crystal device with nanoscale molybdenum trioxide (MoO 3) thin films

AU - Park, Hong Gyu

AU - Kim, Dai Hyun

AU - Lee, Gun Young

AU - Kim, Lee Gon

AU - Kim, Young Hwan

AU - Yoon, Hongil

AU - Seo, Dae Shik

PY - 2012

Y1 - 2012

N2 - 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.

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.

KW - Electro-optical (EO) properties

KW - ion-beam (IB) irradiation

KW - liquid crystal (LC)

KW - molybdenum trioxide (MoO )

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

Abstract

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