한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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The Study of Molecular Structures for New Banana-shaped Liquid Crystals

  • Choi, S. (Department of Applied Physics, Korea University) ;
  • Huang, Y.M. (Liquid Crystal Institute, Kent State University) ;
  • Jakli, A. (Liquid Crystal Institute, Kent State University) ;
  • Lim, T.K. (Department of Physics, Korea University) ;
  • Lee, C.K. (Department of Chemistry, Kyung Sang National University) ;
  • Shin, S.T. (Department of Applied Physics, Korea University)
  • Published : 2003.07.09
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Abstract

We have studied the phase transition to look for molecular structure by using several different techniques for new banana-shaped liquid crystals shown in Fig. 1. Based on the similarities to recently observed fluro-contaning materials (switching involves layer structure rearrangement, increasing threshold with increasing temperature) for HC sample (where x is H), we assume that the phase C has a triclinic symmetry corresponding to the double tilted $smC_G$ Phase. The observation that the polarization peak appears at lower field ($E_o{\sim}15V/{\mu}m$) than the amplitude of the threshold ($E_{th}$) can be explained assuming a field induced $SmC_G$ - SmCP (or SmAP) transition at $E_{th}$

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