Details of Grant 

EPSRC Reference:	GR/L62696/01
Title:	DYE SENSITISED ORGANOCERAMIC NANOCOMPOSITE PHOTOVOLTAIC CELLS
Principal Investigator:	Peter, Professor LM
Other Investigators:	Riley, Professor DJ Fisher, Dr A Price, Professor G
Researcher Co-Investigators:
Project Partners:	BP NSG Group (UK) Tioxide Group Services
Department:	Chemistry
Organisation:	University of Bath
Scheme:	Standard Research (Pre-FEC)
Starts:	01 January 1998	Ends:	31 December 2000	Value (£):	93,346
EPSRC Research Topic Classifications:	Energy Efficiency Materials Processing Solar Technology
EPSRC Industrial Sector Classifications:	Electronics No relevance to Underpinning Sectors
Related Grants:
Panel History:
Summary on Grant Application Form
Photovoltaic cells based on dye-sensitised photoinjection into nanocrystalline oxides such as TiO2 and SnO2 contacted by a hole conducting polymer such as poly (vinyl carbazole) will be investigated. Candidtae oxide/dye/polymer combinations will be selected initially on the basis of the energy levels for charge injection and transport. The chosen materials will be used to construct nancomposites which combine electronic connectivity in the electron and hole conducting phases with interfacial charge carrier separation following photoexcitation of the dye. The binding of the dye to the oxide surface will be achieved by chemisorption and site-specific chemistry. Nanocrystalline oxides will be synthesised as size-selected colliods in several different ways, including sol-gel and aerosol routes. The nanocomposites will be preapred by dispersion of the ceramic phase in a solution containing monomer. Thin film structures will cast on the substrate and the film formed by thermal or photo-polymerisation. After application of a top contact, the structures will be characterised by photovoltage/photocurrent spectrocopy. The kinetics of charge transport and trapping in the two phases will be investigated by time and frequency resolved photocurrent techniques as well as by photoinduced microwave response. Suitable model systems will be used to fabricate small area PV cells for evaluation and optimisation.
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