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液晶二聚体 CB7CB 的巨大挠曲电光效应。

Giant Flexoelectro-optic Effect with Liquid Crystal Dimer CB7CB.

机构信息

Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, Ohio 44242, USA.

出版信息

Sci Rep. 2017 Jan 24;7:41333. doi: 10.1038/srep41333.

DOI:10.1038/srep41333
PMID:28117429
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5259770/
Abstract

We demonstrate a giant flexoelectro-optic behavior of liquid crystal dimer CB7CB. Flexoelectric properties of CB7CB experimentally characterized by measured angle of an in-plane rotation of helical axis (HA) in polymer stabilized uniform lying helix cholesteric liquid crystal. The 45° rotation of HA providing full intensity modulation of transmitted through a pair of crossed polarizers light, is achieved with 4.5 V/μm with a sub-millisecond electro-optic switching time. Reported properties enable application of CB7CB in applications of the flexoelectric effect in fast switching photonic and electro-optic devices.

摘要

我们展示了液晶二聚体 CB7CB 的巨大的挠曲电光学行为。通过测量聚合物稳定的均匀躺螺旋胆甾相液晶中螺旋轴（HA）的面内旋转角度，实验表征了 CB7CB 的挠曲电性。通过一对正交偏振器传输的光的强度调制可以达到 45°HA 的旋转，实现这一效果所需要的电压为 4.5V/μm，电光开关时间为亚毫秒级。所报道的性能使 CB7CB 能够应用于快速开关光子和电光器件中的挠曲电效应。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11f2/5259770/12f5b7d201d4/srep41333-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11f2/5259770/a8f6b8067cae/srep41333-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11f2/5259770/35b3abea5f4f/srep41333-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11f2/5259770/0f5098595937/srep41333-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11f2/5259770/bd535e620287/srep41333-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11f2/5259770/12f5b7d201d4/srep41333-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11f2/5259770/a8f6b8067cae/srep41333-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11f2/5259770/35b3abea5f4f/srep41333-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11f2/5259770/0f5098595937/srep41333-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11f2/5259770/bd535e620287/srep41333-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11f2/5259770/12f5b7d201d4/srep41333-f5.jpg

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本文引用的文献

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