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Title: Electrooptical Properties of Carbon-Nanotube-Doped Twisted Nematic Liquid Crystal Cell
Authors: Huang, Chi-Yen;Pan, Hung-Chih;Hsieh, Chia-Ting
Contributors: 光電科技研究所
Keywords: Liquid crystal;Carbon nanotube
Date: 2006-08
Issue Date: 2013-01-07T02:10:36Z
Publisher: The Japan Society of Applied Physics
Abstract: We investigated the electrooptical properties of a carbon nanotube (CNT)-doped twisted nematic (TN) liquid crystal (LC) cell. Experimental results reveal that the doped CNTs influence the elastic constant of LC–CNT dispersion. Using a small amount of CNT dopant, the field-on response time of the LC cell is nearly invariant; the threshold voltage of the cell increases due to the increase in the elastic constant of LC–CNT dispersion. At a higher CNT concentration, the marked increase in the dielectric anisotropy of LC–CNT dispersion markedly decreases the field-on response time and threshold voltage of the LC cell. The field-off response time of this cell decreases with increasing CNT concentration due to the increase in elastic constant and the slight increase in viscosity of LC–CNT dispersion. The field-on and field-off response times of the LC cell are reduced simultaneously when the LC host is doped with a moderate amount of CNT dopant.
Relation: Jpn. J. Appl. Phys., 45(8A): 6392-6394
Appears in Collections:[Graduate Institute of Photonics Technologies] Periodical Articles

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