Fast switchable field-induced optical birefringence in highly transparent polymerliquid crystal composite

Young Jin Lim, Jeong Hwan Yoon, Hyesun Yoo, Seong Min Song, Ramesh Manda, Srinivas Pagidi, Myong Hoon Lee, Jaemin Myoung, Seung Hee Lee

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6 Citations (Scopus)

Abstract

A liquid crystal device with optically isotropic liquid crystal (OILC) phase induced from polymerization-induced phase separation exhibit a fast response time and a proper dark state. Its electro-optic performances are highly influenced by a kind of materials and processing conditions. Here, the effect of materials and phase-separation on the electro-optic performance of OILC device has been investigated by utilizing the acrylate and the thiol-ene monomer mixtures. The optically isotropic phase was analyzed with scattering theory, and it was revealed that a novel polymer network structure of acrylate mixture is free of scattering and yields a higher on-state transmittance, enhanced by ~50%. By tuning the monomer ratio and UV intensity, an excellent transparent film was obtained and, in addition, the response time was improved by ~40%. The excellent black state and its flexibility can be applied to flexible liquid crystal photonic and display devices.

Original languageEnglish
Pages (from-to)3698-3707
Number of pages10
JournalOptical Materials Express
Volume8
Issue number12
DOIs
Publication statusPublished - 2018 Jan 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

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    Lim, Y. J., Yoon, J. H., Yoo, H., Song, S. M., Manda, R., Pagidi, S., Lee, M. H., Myoung, J., & Lee, S. H. (2018). Fast switchable field-induced optical birefringence in highly transparent polymerliquid crystal composite. Optical Materials Express, 8(12), 3698-3707. https://doi.org/10.1364/OME.8.003698