Low-Voltage driving of liquid crystals vertically aligned by ion-beam bombardment on high-k HfO2 surface

Lee Gon Kim; Won Kyu Lee; Byeong Yun Oh; Ji Hun Lim; Hyun Jae Na; Hong Gyu Park; Young Hwan Kim; Byoung Yong Kim; Young Ku Kang; Chul Ho Ok; Jeoung Yeon Hwang; Jeong Min Han; Dae Shik Seo

doi:10.1080/15421406.2010.495885

Low-Voltage driving of liquid crystals vertically aligned by ion-beam bombardment on high-k HfO2 surface

Lee Gon Kim, Won Kyu Lee, Byeong Yun Oh, Ji Hun Lim, Hyun Jae Na, Hong Gyu Park, Young Hwan Kim, Byoung Yong Kim, Young Ku Kang, Chul Ho Ok, Jeoung Yeon Hwang, Jeong Min Han, Dae Shik Seo

Department of Electrical and Electronic Engineering

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

Abstract

Ion-beam irradiation (IB) on HfO2 surface induced high-performance liquid crystal (LC) driving at a 1-V threshold with vertical alignment of liquid crystals (LC). The high-k materials Atomic layer deposition was used to obtain LC orientation on ultrathin and high-quality films of HfO2 layers. To analyze surface morphological transition of HfO2 which can act as physical alignment effect of LC, atomic force microscopy images are employed with various IB intensities. The contact angle was measured to elucidate the mechanism of vertical alignment of LC on HfO2 with IB irradiation. Contact angle measurements show the surface energy changes via IB intensity increasing.

Original language	English
Pages (from-to)	115-121
Number of pages	7
Journal	Molecular Crystals and Liquid Crystals
Volume	529
DOIs	https://doi.org/10.1080/15421406.2010.495885
Publication status	Published - 2010 Jan

Bibliographical note

Funding Information:
This research was supported by the MKE (The Ministry of Knowledge Economy), Korea under the ITRC (Information Technology Research Center) Support program supervised by the NIPA (NIPA-2009-C1090-0902-0018).

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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Kim, L. G., Lee, W. K., Oh, B. Y., Lim, J. H., Na, H. J., Park, H. G., Kim, Y. H., Kim, B. Y., Kang, Y. K., Ok, C. H., Hwang, J. Y., Han, J. M., & Seo, D. S. (2010). Low-Voltage driving of liquid crystals vertically aligned by ion-beam bombardment on high-k HfO2 surface. Molecular Crystals and Liquid Crystals, 529, 115-121. https://doi.org/10.1080/15421406.2010.495885

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title = "Low-Voltage driving of liquid crystals vertically aligned by ion-beam bombardment on high-k HfO2 surface",

abstract = "Ion-beam irradiation (IB) on HfO2 surface induced high-performance liquid crystal (LC) driving at a 1-V threshold with vertical alignment of liquid crystals (LC). The high-k materials Atomic layer deposition was used to obtain LC orientation on ultrathin and high-quality films of HfO2 layers. To analyze surface morphological transition of HfO2 which can act as physical alignment effect of LC, atomic force microscopy images are employed with various IB intensities. The contact angle was measured to elucidate the mechanism of vertical alignment of LC on HfO2 with IB irradiation. Contact angle measurements show the surface energy changes via IB intensity increasing.",

author = "Kim, {Lee Gon} and Lee, {Won Kyu} and Oh, {Byeong Yun} and Lim, {Ji Hun} and Na, {Hyun Jae} and Park, {Hong Gyu} and Kim, {Young Hwan} and Kim, {Byoung Yong} and Kang, {Young Ku} and Ok, {Chul Ho} and Hwang, {Jeoung Yeon} and Han, {Jeong Min} and Seo, {Dae Shik}",

note = "Funding Information: This research was supported by the MKE (The Ministry of Knowledge Economy), Korea under the ITRC (Information Technology Research Center) Support program supervised by the NIPA (NIPA-2009-C1090-0902-0018).",

year = "2010",

month = jan,

doi = "10.1080/15421406.2010.495885",

language = "English",

volume = "529",

pages = "115--121",

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AU - Kim, Lee Gon

AU - Lee, Won Kyu

AU - Oh, Byeong Yun

AU - Lim, Ji Hun

AU - Na, Hyun Jae

AU - Park, Hong Gyu

AU - Kim, Young Hwan

AU - Kim, Byoung Yong

AU - Kang, Young Ku

AU - Ok, Chul Ho

AU - Hwang, Jeoung Yeon

AU - Han, Jeong Min

AU - Seo, Dae Shik

N1 - Funding Information: This research was supported by the MKE (The Ministry of Knowledge Economy), Korea under the ITRC (Information Technology Research Center) Support program supervised by the NIPA (NIPA-2009-C1090-0902-0018).

PY - 2010/1

Y1 - 2010/1

N2 - Ion-beam irradiation (IB) on HfO2 surface induced high-performance liquid crystal (LC) driving at a 1-V threshold with vertical alignment of liquid crystals (LC). The high-k materials Atomic layer deposition was used to obtain LC orientation on ultrathin and high-quality films of HfO2 layers. To analyze surface morphological transition of HfO2 which can act as physical alignment effect of LC, atomic force microscopy images are employed with various IB intensities. The contact angle was measured to elucidate the mechanism of vertical alignment of LC on HfO2 with IB irradiation. Contact angle measurements show the surface energy changes via IB intensity increasing.

AB - Ion-beam irradiation (IB) on HfO2 surface induced high-performance liquid crystal (LC) driving at a 1-V threshold with vertical alignment of liquid crystals (LC). The high-k materials Atomic layer deposition was used to obtain LC orientation on ultrathin and high-quality films of HfO2 layers. To analyze surface morphological transition of HfO2 which can act as physical alignment effect of LC, atomic force microscopy images are employed with various IB intensities. The contact angle was measured to elucidate the mechanism of vertical alignment of LC on HfO2 with IB irradiation. Contact angle measurements show the surface energy changes via IB intensity increasing.

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Low-Voltage driving of liquid crystals vertically aligned by ion-beam bombardment on high-k HfO2 surface

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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