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A Compact Full 2π Flexoelectro‐Optic Liquid Crystal Phase Modulator (2020)
Journal Article
Wang, X., Fells, J. A. J., Shi, Y., Ali, T., Welch, C., Mehl, G. H., …Elston, S. J. (2020). A Compact Full 2π Flexoelectro‐Optic Liquid Crystal Phase Modulator. Advanced Materials Technologies, 5(12), Article 2000589. https://doi.org/10.1002/admt.202000589

Wavefront shaping, which is often achieved using liquid crystal (LC) spatial light modulators, is particularly important for a wide range of applications including laser microfabrication and micromanipulation, microscopy, and quantum optics. In this... Read More about A Compact Full 2π Flexoelectro‐Optic Liquid Crystal Phase Modulator.

Chirality enhancement in macro-chiral liquid crystal nanoparticles (2020)
Journal Article
Yu, H., Welch, C., Qu, W., Schubert, C. J., Liu, F., Siligardi, G., & Mehl, G. H. (2020). Chirality enhancement in macro-chiral liquid crystal nanoparticles. Materials Horizons, 7(11), 3021-3027. https://doi.org/10.1039/d0mh01274b

The amplification of molecular chirality by metal nanoparticles (NPs) is an important and rapidly evolving field in nanomaterial research with wide applications in smart materials, catalysis, and solvent-solute interactions. Here we present the resul... Read More about Chirality enhancement in macro-chiral liquid crystal nanoparticles.

Self-Assembly and Temperature-Driven Chirality Inversion of Cholesteryl-Based Block Copolymers (2020)
Journal Article
Krishnasamy, V., Qu, W., Chen, C., Huo, H., Ramanagul, K., Gothandapani, V., …Liu, F. (2020). Self-Assembly and Temperature-Driven Chirality Inversion of Cholesteryl-Based Block Copolymers. Macromolecules, 53(11), 4193-4203. https://doi.org/10.1021/acs.macromol.9b02264

Block copolymers (BCPs), comprising a poly(methyl methacrylate) (PMMA) block and a poly(cholesteryloxyhexyl methacrylate) (PChMA) block, were synthesized via reversible addition–fragmentation chain transfer polymerization. The self-assembly of the li... Read More about Self-Assembly and Temperature-Driven Chirality Inversion of Cholesteryl-Based Block Copolymers.

Macroscopic chirality of twist-bend nematic phase in bent dimers confirmed by circular dichroism (2019)
Journal Article
Stevenson, W. D., Zeng, X., Welch, C., Thakur, A. K., Ungar, G., & Mehl, G. H. (2020). Macroscopic chirality of twist-bend nematic phase in bent dimers confirmed by circular dichroism. Journal of Materials Chemistry C, 8(3), 1041-1047. https://doi.org/10.1039/c9tc05061b

Many achiral bent molecules and some polymers with such repeat units exhibit a liquid crystal phase transition between a conventional nematic (N), and a second nematic (Nx) with periodically modulated orientation. Theory predicts several possible str... Read More about Macroscopic chirality of twist-bend nematic phase in bent dimers confirmed by circular dichroism.