| EPSRC Reference: |
GR/S96944/01 |
| Title: |
Liquid Crystal Dispersable Anisotropic Pigments |
| Principal Investigator: |
Riley, Professor DJ |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Chemistry |
| Organisation: |
University of Bristol |
| Scheme: |
LINK |
| Starts: |
01 August 2004 |
Ends: |
31 August 2006 |
Value (£): |
223,920
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
Materials Processing |
| Optical Devices & Subsystems |
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| EPSRC Industrial Sector Classifications: |
| Communications |
Electronics |
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| Panel History: |
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Summary on Grant Application Form |
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Guest-host liquid crystal devices operate by reorienting an anisotropic absorber (the guest) which is dissolved or dispersed in a liquid crystal host. The orientation of anisotropy of the guest is aligned with and follows the orientation of the director of the host. Thus far, using molecular dyes, guest-host liquid crystal devices have had limited commercial success, mainly because suitable material properties have not been attainable. There are several important requirements for a guest-host system:Physical and chemical stability of the guest-host system, especially photostability Concentration of the guest - to get a sufficiently high absorption in a thin layerDichroic ratio - to get a good contrast, the guest must be well ordered in the host, and must have a high ratio of absorption between orthogonal directions.Viscosity of the mixture - if this is too high, the system may switch too slowly to be of use.This project is concerned with replacing dyes in guest-host devices with absorbing nanoparticles. This project will generate, screen and study a wide range of material systems to assess whether pigment-based guest host liquid crystal devices may meet the above criteria.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.bris.ac.uk |