Projects: Projects for Investigator
Reference Number EP/E02730X/1
Title Self-assembling conjugated macromolecules for organic field effect transistors and solar cells
Status Completed
Energy Categories Renewable Energy Sources(Solar Energy, Photovoltaics) 50%;
Not Energy Related 50%;
Research Types Basic and strategic applied research 100%
Science and Technology Fields PHYSICAL SCIENCES AND MATHEMATICS (Physics) 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Dr T (Thomas ) Anthopoulos
No email address given
Department of Physics (the Blackett Laboratory)
Imperial College London
Award Type Standard
Funding Source EPSRC
Start Date 01 October 2007
End Date 30 September 2010
Duration 36 months
Total Grant Value £116,852
Industrial Sectors Electronics
Region London
Programme Physical Sciences
Investigators Principal Investigator Dr T (Thomas ) Anthopoulos , Department of Physics (the Blackett Laboratory), Imperial College London (99.999%)
  Other Investigator Professor D C (Donal ) Bradley , Department of Physics (the Blackett Laboratory), Imperial College London (0.001%)
  Industrial Collaborator Project Contact , Merck Speciality Chemicals Ltd (0.000%)
Web Site
Abstract The design and construction of an ideal material for organic semiconductor devices requires the careful consideration of a range of physical properties. In some cases, what would represent good materials characteristics for one type of device may be highly detrimental to the efficiency of another. Intermolecular pi-pi interactions symbolise one good example: in organic light emitting devices, photoluminescence is quenched by these attractions and the device efficiency is reduced dramatically;inorganic field effect transistors (OFETs), it is desirable to promote pi-pi interactions throughout the bulk, so that charge mobility can be maximised. In this proposal, we aim to prepare materials for organic photovoltaic (OPV) devices and OFETs. The novelty in this work originates from very recent results, in which we demonstrate that highly soluble materials with conformational freedom in solution are able to self-assemble in the solid state to give highly planar and conjugated structures. Such levels of planarity, which maximise the possibility of pi-pi interactions, have only been achieved previously with ladder or ribbon type structures which possess inherent solubility problems. In our systems, long range planarity can be achieved through the use of weak, non-covalent interactions; to date, this approach has not been given significant consideration and is therefore waiting to be exploited
Publications (none)
Final Report (none)
Added to Database 22/02/07