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Contenido archivado el 2024-06-10

Enhancement of electroluminescence in polymers-from molecules to materials

Objetivo



Research objectives and content
The research project has two specific objectives, viz. the development of a range of blue light emitting polymers and improvement of polymer luminescence efficiency by control of polymer processing and order. Some elements of the project fall) within control of order on the molecular scale; others rest on control of the meso scale. (i) New Materials With Light Output at Short Wavelength New solvent-processible conjugated polymers carrying sterically bulky substituents, which will reduce coplanarity and hence favour a blue-shifted emission, will be synthesized by dehydrohalogenation and organometallic cross-coupling reactions. (ii) Exploration of Improved Solvent Processibility in Hydrophilic Solvents It is considered advantageous to be able to build up polymer layers by deposition of a polymer from a solvent which will not dissolve the previously deposited polymer layer. Layer-by-layer deposition of polyionic materials should also also exceptionally thin devices to be fabricated. For this purpose an environmentally benign solvent such as water is attractive Polyionic species soluble in water will be prepared by polymer-analogous alkylation reactions. (iii) Enhancement of PL Efficiency by Blends of Luminescent Materials in a Semiconductive Polymer Host Layer. The objective is to gain control of macroscopic ordering in copolymers by the design and synthesis of polymeric material which are compatible as polymer blends.
Training content (objective, benefit and expected impact)
The group is well equipped to provide a suitable training ground for a postdoctoral investigator. The research group provides; stimulating environment for polymer synthesis. Control of polymer architecture is one of the key research themes spanning stereoregular polymers,
liquid-crystalline fluorinated block copolymers, dendrimers and hyperbranched architectures, as well as conducting and electro-active polymers. The last-mentioned programme has the objective of maintaining Cambridge established position in light emitting polymers and in sharing the concepts and techniques with other academics. The Melville Laboratory is committed to a variety of interdisciplinary programmes in polymer design and synthesis, and has particularly strong links to the Cavendish Laboratory. Coworkers write full reports of their experimental investigations at six monthly intervals. Informal instruction takes place a departmental colloquia and in research group meetings each week. I can expect to benefit from all the strengths of a multidisciplinary training environment in an internationally recognised research group. The impact will be largely at the academic/industrial interface where various key European partners are commercialising light emitting polymer technology. Links with industry I industrial relevance (22)
Cambridge Display Technology has been established by Cambridge University to exploit intellectual property emerging from research in light emitting polymers in Cambridge. Strong collaborations also exist with Philips, Hoechst and Thomson CSF who are expected to commercialise aspects of the technology.

Ámbito científico (EuroSciVoc)

CORDIS clasifica los proyectos con EuroSciVoc, una taxonomía plurilingüe de ámbitos científicos, mediante un proceso semiautomático basado en técnicas de procesamiento del lenguaje natural. Véas: El vocabulario científico europeo..

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Programa(s)

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RGI - Research grants (individual fellowships)

Coordinador

THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE
Aportación de la UE
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Dirección
Pembroke Street
CB2 3RA Cambridge
Reino Unido

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Coste total

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