| EPSRC Reference: |
GR/S68439/01 |
| Title: |
Novel Chevron And Banana-Shaped Materials For Photonic And Electrical Devices |
| Principal Investigator: |
Ashwell, Professor G |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Sch of Engineering |
| Organisation: |
Cranfield University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
04 October 2004 |
Ends: |
28 February 2007 |
Value (£): |
80,642
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| EPSRC Research Topic Classifications: |
| Materials Synthesis & Growth |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
Chemicals |
| Electronics |
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| Related Grants: |
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| Panel History: |
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Summary on Grant Application Form |
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A recent discovery at Cranfield resulted in the non-centrosymmetric alignment of molecules without aliphatic tails by the Langmuir-Blodgett (LB) technique, the films exhibiting a high second-order susceptibility (J. Mater. Chem. 2002, 12, 2181) and molecular rectification (J. Phys. Chem. B 2002, 106, 12158). The molecules differ from those normally considered suitable for LB deposition by having a chevron-shaped rather than a linear molecular structure but, nonetheless, on-going studies have demonstrated alignment in 75% of samples, albeit of only four so far investigated.This proposal concerns a development of the discovery and is driven by current research at Hull on banana-shaped liquid crystals, which have the same basic structure as the chevrons for alignment. An attempt will be made to correlate the molecular geometry and organisation of banana-shaped materials and to exploit their unique liquid crystalline phases. Analogues for both LB deposition and molecular self-assembly will be synthesised, the latter being achieved via a thiol link between the molecule and a gold-coated substrate.Molecules will be theoretically modelled to influence the alignment and consequently, the nonlinear optical and nonlinear electrical properties, with the aim of optimising the second-harmonic intensity and the current rectification ratio.
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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.cranfield.ac.uk |