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Details of Grant 

EPSRC Reference: EP/Z002494/1
Title: Nonplanar spray-coated solar cells
Principal Investigator: Lidzey, Professor D
Other Investigators:
Ribeiro Furtado, Dr S
Researcher Co-Investigators:
Project Partners:
Department: Physics and Astronomy
Organisation: University of Sheffield
Scheme: Standard Research - NR1
Starts: 02 September 2024 Ends: 01 March 2026 Value (£): 258,291
EPSRC Research Topic Classifications:
Manufacturing Machine & Plant
EPSRC Industrial Sector Classifications:
Manufacturing
Related Grants:
Panel History:  
Summary on Grant Application Form
We will develop spray coated solar cell technology and explore the direct deposition of high efficiency perovskite solar cells onto curved surfaces. Sush devices will add minimal weight to the surface on which they are coated and will allow energy to be generated in locations close to where it is being used, for example on the roof or body of an electric vehicle, or the cladding that is attached to the surface of a building. Our preliminary measurements suggest such a mass penalty to be around 5 grams per square metre and therefore such solar cells will add relatively little overall weight of an electric vehicle (EV), but will be capable of trickle-charging the car's battery when it is parked in the sunshine. The low weight nature of our technology is expected to be particularly important for EV applications, as reduced weight extends their maximum driving range. The carbon fibre composite materials on which we spray-cast solar cells will also be light-weight, rigid and strong and will be of importance in building applications as they could be retro-fitted as cladding to older buildings that are unable to support the weight of relatively heavy conventional solar cell devices based on silicon.

This research will build a unique toolbox of manufacturing process for the production of solar cells based around ultrasonic spray-coating. The process has recently been demonstrated at small 'lab-scale'. Our aim is to scale-up this technology, making it more repeatable and increasing the efficiency by which the solar cell converts light to electricity (the so-called power conversion efficiency). The surface on which we will spray-coat devices is of critical importance; surfaces have to be very smooth and contain a low rate of imperfections. Existing research has mainly targeted glass surfaces which are very smooth, however a process to spray-coat solar-cells onto carbon fibre composites having appropriate surface requirements will be developed. This process development will enable the transfer of this technology to a variety of other composites and can be expanded to include other emerging manufacturing methods.

The research will culminate in the creation of a demonstrator device that will be fabricated over a non planar carbon-fibre surface. We plan to show the demonstrator to potential end users and build a collaboration network that will further develop this technology and drive it towards commercialisation.
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Organisation Website: http://www.shef.ac.uk