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Pretilt angle control of main-chain liquid crystal polymer in photoalignment process
Material Physics | 更新时间：2024-05-15
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    • Pretilt angle control of main-chain liquid crystal polymer in photoalignment process

    • “液晶光子器件的研究取得了重要进展。液晶的方位角和预倾角的调制广泛应用于各类液晶光子器件中，然而传统的液晶预倾角调控方法存在稳定性差、易受外场干扰的问题。为此，研究人员提出了一种基于液晶聚合物预倾角可控制备的新方法。液晶聚合物因其高相变温度、耐热、耐强光、耐机械振动等特性，成为预倾角调控的理想选择。然而，由于液晶单体受液晶与空气界面的锚定能影响，液晶聚合物的预倾角与液晶层厚度相关，难以实现稳定可控。为解决这一问题，研究人员采用两步法曝光偶氮染料亮黄（BY）薄膜诱导液晶单体RM257倾斜，并通过多层旋凃及液晶单体RM257光聚合的方式降低液晶与空气界面锚定能的影响。这一创新方法使得RM257主链型液晶聚合物的预倾角可在0°~16°之间连续可调，并具备光热稳定的优点。这一研究成果为液晶光子器件的制备提供了新的材料设计思路，有望推动液晶光子与显示器件领域的发展。”
      ”
    • Chinese Journal of Liquid Crystals and Displays   Vol. 39, Issue 4, Pages: 420-426(2024)

    • DOI：10.37188/CJLCD.2024-0044    

      CLC： O484.4;O753+.2

    • Published：05 April 2024，

      Received：06 February 2024，

      Revised：27 February 2024，

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  • LI Chuan, HU Chao, FANG Qipeng, et al. Pretilt angle control of main-chain liquid crystal polymer in photoalignment process. [J]. Chinese Journal of Liquid Crystals and Displays 39(4):420-426(2024) DOI： 10.37188/CJLCD.2024-0044.

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Related Author

LI Chuan
HU Chao
FANG Qipeng
LIU Minxuan
JIAO Binzhang
SHEN Jun
YIN Shaoyun
SHEN Dong

Related Institution

Chongqing Institute of Green and Intelligent Technology， Chinese Academy of Sciences
Chongqing School， University of Chinese Academy Sciences
School of Materials Science and Engineering， East China University of Science and Technology
Department of Physics， East China University of Science and Technology
School of Information Engineering, Guangdong University of Technology
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