Printed perovskite solar cells the size of a standard piece of paper offer a breakthrough that could see the technology adopted by industry.
The ultra-large solar modules—which are almost six times larger than previous versions—were created by a team at Swansea University using simple and low-cost printing techniques. The modules are made up of three different layers, each printed via an optimized process on glass substrates as large as a sheet of paper.
According to Dr. Francesca De Rossi, “The key to our success was the screen printing process. We optimized this to avoid defects caused by printing such large areas. Accurate registration of layers and patterning the blocking layer helped improve connections between cells, boosting overall performance.”