Electrooptical Properties of Single-Walled Carbon-Nanotube Mixed Liquid-Crystal Cells With Rubbed and Ion-Beam-Treated Alignment Layers

The electrooptical properties of single-walled carbon-nanotube (SWCNT) mixed liquid-crystal (LC) cells fabricated by rubbing and ion-beam (IB) process are investigated. The increase of SWCNT concentration in the LC mixture led to a decrease in the threshold voltage of twisted nematic cells by reduci...

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Bibliographic Details
Published in:Journal of display technology 2011-12, Vol.7 (12), p.644-648
Main Authors: Park, Hong-Gyu, Jeong, Hae-Yun, Kim, Young-Hwan, Kim, Byoung-Yong, Kim, Jeong-Hwan, Yoon, Hongil, Seo, Dae-Shik
Format: Article
Language:English
Subjects:
Alignment
Carbon nanotubes
Display devices
Educational institutions
Electrooptical
Electrooptical property
Electrooptical waveguides
Ion beams
ion-beam (IB) process
Liquid crystals
liquid crystals (LCs)
rubbing process
Single wall carbon nanotubes
single-walled carbon-nanotube (SWNT)
Spectra
Thermal stability
Threshold voltage
Transmittance
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Summary:The electrooptical properties of single-walled carbon-nanotube (SWCNT) mixed liquid-crystal (LC) cells fabricated by rubbing and ion-beam (IB) process are investigated. The increase of SWCNT concentration in the LC mixture led to a decrease in the threshold voltage of twisted nematic cells by reducing the screening effect. Threshold voltages of 1.3 and 1.7 V are lowered to 0.8 and 1.2 V, respectively, with SWCNT mixtures up to 10×10 -3 wt%. LC alignment characteristics including LC orientation state, transmittance spectra, pretilt angle, and thermal stability of LC cells are also observed.
ISSN:1551-319X
1558-9323
DOI:10.1109/JDT.2011.2160841