Scientists create printable solar cells

Researchers at Swansea University have developed a carbon ink formulation for manufacturing perovskite solar cells at scale. The team used a Roll-to-Roll (R2R) process with slot die coating to create “fully printable” perovskite photovoltaics. A perovskite solar cell is a special type of material that can turn sunlight into electricity. It is a new and exciting technology that could help us produce clean and renewable energy. The new fully R2R-coated device, printed onto a 20-metre-long flexible substrate, produced a stabilised power conversion efficiency of 10.8 per cent. The devices with carbon electrodes provided similar photovoltaic performance to conventional evaporated gold electrodes.

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