• 文献标题:   Non-covalent intermolecular interactions of colloidal nematic liquid crystals doped with graphene oxide
  • 文献类型:   Article
  • 作  者:   JAVADIAN S, DALIR N, KAKEMAM J
  • 作者关键词:   nematic liquid crystal, graphene oxide, phase transition, intermolecular interaction
  • 出版物名称:   LIQUID CRYSTALS
  • ISSN:   0267-8292 EI 1366-5855
  • 通讯作者地址:   Tarbiat Modares Univ
  • 被引频次:   16
  • DOI:   10.1080/02678292.2016.1278051
  • 出版年:   2017

▎ 摘  要

Graphene oxide (GO) was doped to eutectic uniaxial nematic liquid crystals (NLCs) (E-5CN7) with different percentages to improve the physiochemical properties of NLCs effectively. GO shifts the N-I phase transition temperature to higher values. It has been observed that increasing GO concentration up to 0.75% increases the N-I phase transition temperature substantially while further increase of GO concentration results in an inverse trend. The GO/E-5CN7 non-covalent interactions change the N-I phase transition. The contribution of several terms such as anchoring and polarisation effects on N-I phase transition was quantified as well. The results suggest that the size is an important contributor to GO and liquid crystal interaction. The results show that E-5CN7@GO composites may act as promising candidates to enhance the efficiency of room temperature devices. [GRAPHICS]