Biaxial Nematic Liquid Crystals:reducing symmetry to increase order and develop novel applications
Lead Research Organisation:
University of York
Department Name: Chemistry
Abstract
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Publications
Mandle RJ
(2016)
The Dependency of Nematic and Twist-bend Mesophase Formation on Bend Angle.
in Scientific reports
Milton H
(2014)
Field-induced refractive index variation in the dark conglomerate phase for polarization-independent switchable liquid crystal lenses
in Applied Optics
Nagaraj M
(2015)
Understanding the unusual reorganization of the nanostructure of a dark conglomerate phase.
in Physical review. E, Statistical, nonlinear, and soft matter physics
Nagaraj M
(2014)
Electrically tunable refractive index in the dark conglomerate phase of a bent-core liquid crystal
in Applied Physics Letters
Nagaraj M
(2014)
Unusual electric-field-induced transformations in the dark conglomerate phase of a bent-core liquid crystal
in Liquid Crystals
Seed A
(2012)
Synthesis and mesomorphic behaviour of high polarisability materials for non-linear optical applications
in Liquid Crystals
Sims M
(2016)
Molecular Design Parameters of Anthraquinone Dyes for Guest-Host Liquid-Crystal Applications: Experimental and Computational Studies of Spectroscopy, Structure, and Stability
in The Journal of Physical Chemistry C
Sims MT
(2016)
Principal molecular axis and transition dipole moment orientations in liquid crystal systems: an assessment based on studies of guest anthraquinone dyes in a nematic host.
in Physical chemistry chemical physics : PCCP
Tian L
(2013)
The magnitude and temperature dependence of the Kerr constant in liquid crystal blue phases and the dark conglomerate phase
in Liquid Crystals
Xiang Y
(2009)
Revealing the uniaxial to biaxial nematic liquid crystal phase transition via distinctive electroconvection
in Applied Physics Letters
Description | Professor Helen Gleeson of Manchester University was the lead PI, and she holds the project findings. New materials and design methods have been developed, in particular for liquid crystalline oxadiazoles. We have demonstrated that this molecular motif supports a range of mesophase types, from nematic, to smectic, to columnar phases. However, although the literature reports the formation of the biaxial nematic phase in certain materials, we cannot prove this conclusively correct. Nevertheless, we have also discovered a number of new phenomenon associated with chirality, which we deem to be of future interest, with potential for device applications, in areas additional to optics. |
Exploitation Route | As noted above, applications in novel displays and sensors, with useful guidelines for the development of material design and synthesis. |
Sectors | Aerospace, Defence and Marine,Chemicals,Electronics |
Description | Discovery of a new mesophase system that has unusual optical properties, and potentially mechanical properties which could lead to the development of mechnoelectrical switches. |
First Year Of Impact | 2010 |
Sector | Aerospace, Defence and Marine,Chemicals,Electronics |
Impact Types | Economic |
Description | EPSRC |
Amount | £123,894 (GBP) |
Funding ID | R153680 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 02/2014 |
End | 01/2015 |
Description | CAPE University of Cambridge |
Organisation | University of Cambridge |
Department | Centre for Advanced Photonics and Electronics (CAPE) |
Country | United Kingdom |
Sector | Academic/University |
PI Contribution | Materials - dyes and liquid crystals - for test purposes |
Collaborator Contribution | Evaluation of materials in various devices and conditions |
Impact | Just started so no outcomes yet |
Start Year | 2016 |
Description | Leeds University |
Organisation | University of Leeds |
Department | School of Physics and Astronomy |
Country | United Kingdom |
Sector | Academic/University |
PI Contribution | Synthesis of materials for physical studies |
Collaborator Contribution | Physical studies on materials provided by York University. Studies form the basis of ne applications of materials in devices. |
Impact | Raman Scattering Studies of Order Parameters in Liquid Crystalline Dimers Exhibiting the Nematic and Twist-bend Nematic Phases, Z. Zhang, V.P. Panov, M. Nagaraj, R.J. Mandle, J.W. Goodby, G.R. Luckhurst, J.C. Jones and H.F. Gleeson, J. Mater. Chem. C, 2015, 3, 10007-10016, DOI: 10.1039/c5tc02174j. |
Start Year | 2015 |