Nano-doped weakly polar versus highly polar liquid crystal

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• 作者：Kamal Kumar Pandey ; Abhishek Kumar Misra ; Rajiv Manohar
• 关键词：Nematic liquid crystals ; Nanoparticles ; Dielectric anisotropy ; Relaxation
• 刊名：Applied Nanoscience
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：6
• 期：2
• 页码：141-148
• 全文大小：673 KB
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• 作者单位：Kamal Kumar Pandey (1)
  Abhishek Kumar Misra (2)
  Rajiv Manohar (2)
  
  1. Physics Department, Vivekanand P.G. College, Manendragarh, Chhattisgarh, India
  2. Liquid Crystal Research Lab, Physics Department, University of Lucknow, Lucknow, 226007, India
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Materials Science
  Nanotechnology
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：2190-5517

文摘

Nanoparticles doped liquid crystal show changed dielectric properties in comparison to pure liquid crystals. These changes are strongly dependent on the inherent properties of guest and host particles. In the present work we have done comparative dielectric study of highly polar nematic liquid crystals 5CB and weakly polar liquid crystal D6AOB and its 1 % wt/wt concentration with zinc oxide nanoparticles (1 % Cu) doped. The relaxation modes in pure and nano doped samples are explained properly. We have also analyzed the dielectric anisotropy and relaxation frequency for all the samples. Keywords Nematic liquid crystals Nanoparticles Dielectric anisotropy Relaxation