Biaxial Nematic Liquid Crystals:reducing symmetry to increase order and develop novel applications
Lead Research Organisation:
University of York
Department Name: Chemistry
Abstract
Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.
Publications
Addis J
(2016)
Second-harmonic generation and the influence of flexoelectricity in the nematic phases of bent-core oxadiazoles
in Liquid Crystals
Belaissaoui A
(2013)
Mesogenic properties of two 1,3,4-oxadiazole-based bent-core geometrical isomers
in Liquid Crystals
Belaissaoui A
(2013)
Spontaneous formation of chiral macrostructures in achiral hockey-stick liquid crystals
in Liquid Crystals
Davis E
(2014)
Handbook of Liquid Crystals
Davis E
(2014)
Liquid-crystalline structure-property relationships in halogen-terminated derivatives of cyanobiphenyl
in Liquid Crystals
Gleeson H
(2010)
Optical measurements of orientational order in uniaxial and biaxial nematic liquid crystals
in Liquid Crystals
Gleeson HF
(2014)
The nematic phases of bent-core liquid crystals.
in Chemphyschem : a European journal of chemical physics and physical chemistry
Goodby
(2015)
What makes a liquid crystal? The effect of free volume on soft matter
in Liquid Crystals
Görtz V
(2009)
Unusual properties of a bent-core liquid-crystalline fluid
in Soft Matter
Kaur S
(2011)
Nonstandard electroconvection in a bent-core oxadiazole material.
in Physical review. E, Statistical, nonlinear, and soft matter physics
| 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 |