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Modulating helical nanostructures in liquid crystal phase by molecular design

Press Releases | January 18, 2021

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A team of researchers led by Assistant Professor Yuki Arakawa (Toyohashi University of Technology, Japan) has successfully developed sulfur-containing liquid crystal (LC) dimer molecules1) with oppositely directed ester bonds, which exhibit a helical liquid crystal phase, viz. twist-bend nematic (NTB) phase, 2) over a wide temperature range, including room temperature. Collaboration with a team at the Advanced Light Source research facility (Lawrence Berkeley National Laboratory, USA) revealed that the ester bond direction in the molecular structures largely impacts the pitch lengths of helical nanostructures in the NTB phase. It is expected that this molecular design can be used to tune the resultant physical properties of LC materials that would contribute to new LC technologies, such as LC laser, photo-alignment, and display technologies.

Full text: Modulating helical nanostructures in liquid crystal phase by molecular design
TUT website: Press release

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