The alignment effect of nematic liquid crystal on NDLC thin films surface

Chang Joon Park; Hyung Ku Kang; Jeoung Yeon Hwang; Young Hwan Kim; Dae Shik Seo; Han Jin Ahn; Jong Bok Kim; Kyung Chan Kim; Hong Koo Baik

doi:10.1080/15421400590954902

The alignment effect of nematic liquid crystal on NDLC thin films surface

Chang Joon Park, Hyung Ku Kang, Jeoung Yeon Hwang, Young Hwan Kim, Dae Shik Seo, Han Jin Ahn, Jong Bok Kim, Kyung Chan Kim, Hong Koo Baik

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

Abstract

We studied the nematic liquid crystal (NLC) aligning capabilities using the new alignment material of Nitrogen doped diamond-like carbon (NDLC) thin film. The NDLC thin film exhibits high electrical resistivity and thermal conductivity that are similar to the properties shown by diamond-like carbon (DLC) thin films. The diamond-like properties and nondiamond-like bonding make NDLC an attractive candidate for applications. A high pretilt angle of about 9.9° by ion beam (IB) exposure on the NDLC thin film surface was measured. A good LC alignment is achieved by the IB alignment method on the NDLC thin film surface at annealing temperature of 200°C. The alignment defect of the NLC was observed above annealing temperature of 250°C. Consequently, the high pretilt angle and the good LC alignment by the IB alignment method on the NDLC thin film surface can be achieved.

Original language	English
Pages (from-to)	163/[491]-169/[497]
Journal	Molecular Crystals and Liquid Crystals
Volume	434
DOIs	https://doi.org/10.1080/15421400590954902
Publication status	Published - 2005

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Funding Information:
Keywords: annealing; ion Beam (IB); nematic liquid crystal (NLC); nitrogen doped diamond-like carbon (NDLC); pretilt angle This work was supported by National Research Laboratory program (M1-0203-00-0008).

All Science Journal Classification (ASJC) codes

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

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title = "The alignment effect of nematic liquid crystal on NDLC thin films surface",

abstract = "We studied the nematic liquid crystal (NLC) aligning capabilities using the new alignment material of Nitrogen doped diamond-like carbon (NDLC) thin film. The NDLC thin film exhibits high electrical resistivity and thermal conductivity that are similar to the properties shown by diamond-like carbon (DLC) thin films. The diamond-like properties and nondiamond-like bonding make NDLC an attractive candidate for applications. A high pretilt angle of about 9.9° by ion beam (IB) exposure on the NDLC thin film surface was measured. A good LC alignment is achieved by the IB alignment method on the NDLC thin film surface at annealing temperature of 200°C. The alignment defect of the NLC was observed above annealing temperature of 250°C. Consequently, the high pretilt angle and the good LC alignment by the IB alignment method on the NDLC thin film surface can be achieved.",

author = "Park, {Chang Joon} and Kang, {Hyung Ku} and Hwang, {Jeoung Yeon} and Kim, {Young Hwan} and Seo, {Dae Shik} and Ahn, {Han Jin} and Kim, {Jong Bok} and Kim, {Kyung Chan} and Baik, {Hong Koo}",

note = "Funding Information: Keywords: annealing; ion Beam (IB); nematic liquid crystal (NLC); nitrogen doped diamond-like carbon (NDLC); pretilt angle This work was supported by National Research Laboratory program (M1-0203-00-0008).",

year = "2005",

doi = "10.1080/15421400590954902",

language = "English",

volume = "434",

pages = "163/[491]--169/[497]",

journal = "Molecular Crystals and Liquid Crystals",

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T1 - The alignment effect of nematic liquid crystal on NDLC thin films surface

AU - Park, Chang Joon

AU - Kang, Hyung Ku

AU - Hwang, Jeoung Yeon

AU - Kim, Young Hwan

AU - Seo, Dae Shik

AU - Ahn, Han Jin

AU - Kim, Jong Bok

AU - Kim, Kyung Chan

AU - Baik, Hong Koo

N1 - Funding Information: Keywords: annealing; ion Beam (IB); nematic liquid crystal (NLC); nitrogen doped diamond-like carbon (NDLC); pretilt angle This work was supported by National Research Laboratory program (M1-0203-00-0008).

PY - 2005

Y1 - 2005

N2 - We studied the nematic liquid crystal (NLC) aligning capabilities using the new alignment material of Nitrogen doped diamond-like carbon (NDLC) thin film. The NDLC thin film exhibits high electrical resistivity and thermal conductivity that are similar to the properties shown by diamond-like carbon (DLC) thin films. The diamond-like properties and nondiamond-like bonding make NDLC an attractive candidate for applications. A high pretilt angle of about 9.9° by ion beam (IB) exposure on the NDLC thin film surface was measured. A good LC alignment is achieved by the IB alignment method on the NDLC thin film surface at annealing temperature of 200°C. The alignment defect of the NLC was observed above annealing temperature of 250°C. Consequently, the high pretilt angle and the good LC alignment by the IB alignment method on the NDLC thin film surface can be achieved.

AB - We studied the nematic liquid crystal (NLC) aligning capabilities using the new alignment material of Nitrogen doped diamond-like carbon (NDLC) thin film. The NDLC thin film exhibits high electrical resistivity and thermal conductivity that are similar to the properties shown by diamond-like carbon (DLC) thin films. The diamond-like properties and nondiamond-like bonding make NDLC an attractive candidate for applications. A high pretilt angle of about 9.9° by ion beam (IB) exposure on the NDLC thin film surface was measured. A good LC alignment is achieved by the IB alignment method on the NDLC thin film surface at annealing temperature of 200°C. The alignment defect of the NLC was observed above annealing temperature of 250°C. Consequently, the high pretilt angle and the good LC alignment by the IB alignment method on the NDLC thin film surface can be achieved.

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JO - Molecular Crystals and Liquid Crystals

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The alignment effect of nematic liquid crystal on NDLC thin films surface

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