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Details of Grant 

EPSRC Reference: GR/R20786/01
Title: Semiconducting Polymer Solar Cells
Principal Investigator: Friend, Professor Sir R
Other Investigators:
Greenham, Professor N
Researcher Co-Investigators:
Project Partners:
Cambridge Display Technology Ltd (CDT)
Department: Physics
Organisation: University of Cambridge
Scheme: Standard Research (Pre-FEC)
Starts: 01 June 2001 Ends: 30 November 2004 Value (£): 207,265
EPSRC Research Topic Classifications:
Materials Synthesis & Growth Solar Technology
EPSRC Industrial Sector Classifications:
Energy Manufacturing
Electronics
Related Grants:
Panel History:  
Summary on Grant Application Form
Semi-conducting polymers offer the prospect of producing cheap, solution-processed photovolatic devices. We have developed a technique for obtaining efficient charge generation and collection in conjugated polymers by using phase-separated two-component systems to achieve a distributed heterojunction at which charge separation can occur. In this proposal, we intend to develop efficient photovoltaic devices based on this concept, using new polyfluorene-based polymers whose electronic properties are readily tuneable. We will study the morphology of the phase separation in these polymers using a range of techniques, including atomic force microscopy. We will then optimise the photovoltaic performance by controlling the polymer composition and processing conditions to achieve the most favourable structure. We expect to be able to achieve solar power conversion efficiencies in excess of 5% in an all-polymer, thin-film, solution-processed solid state device.
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Organisation Website: http://www.cam.ac.uk