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Liquid Crystals Volume 37, 2010 - Issue 3
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Original Articles

Enhancing the electro-optical properties of ferroelectric liquid crystals by doping ferroelectric nanoparticles

Hao-Hsun Liang Department of Polymer Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan, Republic of ChinaCorrespondence[email protected]
,
Ya-Zhi Xiao Department of Polymer Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan, Republic of China
,
Fu-Jhen Hsh Department of Polymer Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan, Republic of China
,
Che-Cheng Wu Department of Polymer Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan, Republic of China
&
Jiunn-Yih Lee Department of Polymer Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan, Republic of ChinaCorrespondence[email protected]
Pages 255-261 | Received 27 Apr 2009, Accepted 16 Dec 2009, Published online: 04 Mar 2010
 
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Abstract

The effects on the physical and electro-optical properties of ferroelectric liquid crystals (FLCs) after the doping of a dilute suspension of ferroelectric nanoparticles (BaTiO3) have been studied. Due to the permanent electric dipole moments of the ferroelectric nanoparticles, the spontaneous polarisation of FLCs with low doping concentration was about twice that of pure FLCs, in addition to a significant improvement in the dielectric properties, the response time and the V-shaped switching in the chiral smectic C (SmC∗) phase. The results obtained point the way to an alternative for improving the applicability of FLCs without resorting to chemical synthesis.

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