Characteristics of wide-band reflection of polymer-stabilised cholesteric liquid crystal cell prepared from an unsticking technique |
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| Authors: | Renwei Guo Hui Cao Huijing Liu Kexuan Li Wei Huang Jiumei Xiao |
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| Affiliation: | 1. Department of Materials Physics and Chemistry, School of Materials Science and Engineering , University of Science and Technology Beijing , Beijing, 100083, P.R. China;2. School of Applied Science , University of Science and Technology Beijing , Beijing, 100083, P. R. China |
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| Abstract: | An unsticking technique was applied for the fabrication of a polymer-stabilised cholesteric liquid crystal (PSCLC) cell. The template of polymer matrix in the planarly aligned cholesteric liquid crystal (Ch-LC) was perfectly preserved by lifting off the hydrophilic antisticking substrate. The desired PSCLC cell could then be obtained by injecting a third Ch-LC sample between two designed templates of PSCLC layer. By adjusting the pitch distribution in the two stacking templates, a reflectivity of nearly 50% incident light could be yielded and the bandwidth of the reflection spectrum could be controlled accurately in the PSCLC cell. Thus, a method to modulate the wide-band reflection of 50% visible light flux range was offered. |
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| Keywords: | chiral dopant cholesteric liquid crystal crosslink monomer |
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