First published on the Cleantech Investor website, August 2014
The University of Sheffield has announced that scientists from the Departments of Physics and Astronomy and Chemical and Biological Engineering are the first to fabricate perovskite solar cells using a spray-painting process – a discovery that could help cut the cost of solar power generation.
Efficient organometal halide perovskite based photovoltaics were first demonstrated in 2012. Perovskite combines high efficiency with low materials costs and combined with spray-painting - which has previously been used to produce solar cells using organic semiconductors - a process has been developed to use peroskites in high volume manufacturing.
The Perovskite spray-painting techniques waste very little of the perovskite material and can be scaled to high volume manufacturing – similar to applying paint to cars and graphic printing. According to lead researcher, Professor David Lidzey:
“This class of material offers the potential to combine the high performance of mature solar cell technologies with the low embedded energy costs of production of organic photovoltaics.”