Effect of CNTs on the electro-optical propertiesof the VA LC cells

Chi Yen Huang, Po Yun Chiou, Yi Jen Huang, Jing Yang Zheng

Research output: Contribution to conferencePaper

Abstract

We investigate the electro-optical properties of the carbon nanotube (CNT)-doped vertical alignment (VA) liquid crystal (LC) cells. When the CNT concentration is low, the LCs and the CNTs form a guest host system. The doped CNTs increase the order parameter, and then increase the elastic constant and the absolute value of the dielectric anisotropy of the LC/CNT mixture. When the CNT concentration is high, the doped CNTs become entangled networks, disturbing the LC alignment and impeding the flow motion of the LC defects. The doped CNTs also increase the viscosity of the LC/CNT mixture. Without rubbing treatment, the response time of the 0.8 wt% CNT-doped cell is - 63% to that of the pristine cell; with rubbing treatment, the response time of the 0.8 wt% CNT-doped cell is - 92% to that of the pristine cell.

Original languageEnglish
Pages41-44
Number of pages4
Publication statusPublished - 2009 Dec 1
Event16th International Display Workshops, IDW '09 - Miyazaki, Japan
Duration: 2009 Dec 92009 Dec 11

Other

Other16th International Display Workshops, IDW '09
CountryJapan
CityMiyazaki
Period09-12-0909-12-11

Fingerprint

Liquid Crystals
Carbon Nanotubes
Liquid crystals
Carbon nanotubes
Crystal defects
Elastic constants
Anisotropy
Optical properties
Viscosity

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Human-Computer Interaction
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Huang, C. Y., Chiou, P. Y., Huang, Y. J., & Zheng, J. Y. (2009). Effect of CNTs on the electro-optical propertiesof the VA LC cells. 41-44. Paper presented at 16th International Display Workshops, IDW '09, Miyazaki, Japan.
Huang, Chi Yen ; Chiou, Po Yun ; Huang, Yi Jen ; Zheng, Jing Yang. / Effect of CNTs on the electro-optical propertiesof the VA LC cells. Paper presented at 16th International Display Workshops, IDW '09, Miyazaki, Japan.4 p.
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abstract = "We investigate the electro-optical properties of the carbon nanotube (CNT)-doped vertical alignment (VA) liquid crystal (LC) cells. When the CNT concentration is low, the LCs and the CNTs form a guest host system. The doped CNTs increase the order parameter, and then increase the elastic constant and the absolute value of the dielectric anisotropy of the LC/CNT mixture. When the CNT concentration is high, the doped CNTs become entangled networks, disturbing the LC alignment and impeding the flow motion of the LC defects. The doped CNTs also increase the viscosity of the LC/CNT mixture. Without rubbing treatment, the response time of the 0.8 wt{\%} CNT-doped cell is - 63{\%} to that of the pristine cell; with rubbing treatment, the response time of the 0.8 wt{\%} CNT-doped cell is - 92{\%} to that of the pristine cell.",
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Huang, CY, Chiou, PY, Huang, YJ & Zheng, JY 2009, 'Effect of CNTs on the electro-optical propertiesof the VA LC cells', Paper presented at 16th International Display Workshops, IDW '09, Miyazaki, Japan, 09-12-09 - 09-12-11 pp. 41-44.

Effect of CNTs on the electro-optical propertiesof the VA LC cells. / Huang, Chi Yen; Chiou, Po Yun; Huang, Yi Jen; Zheng, Jing Yang.

2009. 41-44 Paper presented at 16th International Display Workshops, IDW '09, Miyazaki, Japan.

Research output: Contribution to conferencePaper

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AB - We investigate the electro-optical properties of the carbon nanotube (CNT)-doped vertical alignment (VA) liquid crystal (LC) cells. When the CNT concentration is low, the LCs and the CNTs form a guest host system. The doped CNTs increase the order parameter, and then increase the elastic constant and the absolute value of the dielectric anisotropy of the LC/CNT mixture. When the CNT concentration is high, the doped CNTs become entangled networks, disturbing the LC alignment and impeding the flow motion of the LC defects. The doped CNTs also increase the viscosity of the LC/CNT mixture. Without rubbing treatment, the response time of the 0.8 wt% CNT-doped cell is - 63% to that of the pristine cell; with rubbing treatment, the response time of the 0.8 wt% CNT-doped cell is - 92% to that of the pristine cell.

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Huang CY, Chiou PY, Huang YJ, Zheng JY. Effect of CNTs on the electro-optical propertiesof the VA LC cells. 2009. Paper presented at 16th International Display Workshops, IDW '09, Miyazaki, Japan.