Electro-optical properties of planar nematic cells impregnated with carbon nanosolids |
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Authors: | W Lee J-S Gau H-Y Chen |
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Institution: | (1) Department of Physics, Chung Yuan Christian University, Chung-Li, Taiwan, 32023, Republic of China |
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Abstract: | We report electro-optical effects in planar-aligned liquid-crystal cells of pristine and doped calamitics in the presence of dc voltage. The doped cells comprise both a nematic host and a minute amount of either buckminsterfullerene or multiwalled carbon nanotubes. The voltage–transmittance and voltage–capacitance hystereses were observed from the sample cells in the range of applied dc voltage up to 8 V. Experimental evidence indicates that a nanoscale carbon dopant can affect the behavior of a nematic in terms of ion-charge effects and that doping with nanotubes can effectively reduce the driving voltage. |
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Keywords: | 42 70 Df 42 79 Kr 81 05 Tp 82 70 Dd |
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