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 language | English |
|---|---|
| Pages (from-to) | 3698-3707 |
| Number of pages | 10 |
| Journal | Optical Materials Express |
| Volume | 8 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2018 |
Bibliographical note
Funding Information:Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2016R1A6A3A11930056 and 2016R1D1A1B01007189).
Publisher Copyright:
© 2018 Optical Society of America.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials