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Surface reformation and electro-optical characteristics of liquid crystal alignment layers using ion beam irradiation
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10.1063/1.2978364
/content/aip/journal/jap/104/6/10.1063/1.2978364
http://aip.metastore.ingenta.com/content/aip/journal/jap/104/6/10.1063/1.2978364

Figures

Image of FIG. 1.
FIG. 1.

Schematic of the IB system with DuoPIGatron-type ion source.

Image of FIG. 2.
FIG. 2.

Pretilt angles on the IB-irradiated homogeneous PI surfaces as a function of the incident IB energy for an incident IB angle of and an exposure time of 1 min. The error bar was determined at several points in one cell. The inset shows the pretilt angle on the IB-irradiated PI surfaces as a function of the IB exposure time.

Image of FIG. 3.
FIG. 3.

RMS roughness values of the PI surfaces irradiated with various IB energies. The inset shows a representative AFM image of an area of for an IB energy of 1.8 keV.

Image of FIG. 4.
FIG. 4.

(a) , (b) , and (c) core-level XPS spectra of the PI surfaces before and after IB irradiation at incident IB energy of 1.8 keV.

Image of FIG. 5.
FIG. 5.

Polarizing optical photomicrographs of the NLC on the PI surfaces irradiated with incident IB energies of (a) 0 eV, (b) 0.6 keV, (c) 1.2 keV, (d) 1.8 keV, (e) 2.4 keV, and (f) 3.0 keV. “A” indicates analyzer and “P” indicates polarizer.

Image of FIG. 6.
FIG. 6.

characteristics for the IB-irradiated TN-LCD using the PI layers irradiated with incident IB energy in the range of 0.6–3.0 keV. The inset shows the characteristics of the rubbed-aligned and IB-irradiated TN-LCDs with an incident IB energy of 1.8 keV.

Image of FIG. 7.
FIG. 7.

Response time characteristics for the IB-irradiated TN-LCD using the PI layers irradiated with an incident IB energy in the range of 0.6–3.0 keV. The inset shows the response time of the rubbed-aligned and IB-irradiated TN-LCDs with an incident IB energy of 1.8 keV.

Tables

Generic image for table
Table I.

The atomic percentage areas of each chemical bonding state deconvoluted from the core-level spectra of the PI layers irradiated with various Ar IB energies.

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/content/aip/journal/jap/104/6/10.1063/1.2978364
2008-09-18
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Surface reformation and electro-optical characteristics of liquid crystal alignment layers using ion beam irradiation
http://aip.metastore.ingenta.com/content/aip/journal/jap/104/6/10.1063/1.2978364
10.1063/1.2978364
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