A thin film of perovskite was deposited upon a standard silicon solar cell to create the device. The conversion efficiency of the combined tandem solar cell is significantly better than that of conventional silicon-only solar cells, which average 22-24%.
Oxford PV‘s integrated production line in Brandenburg a der Havel, Germany, produced the solar cell. The factory has started producing tandem solar cells for integration by solar module manufacturing partners, and it is ramping up to higher numbers. The facility, which has been in operation since 2017, features the world’s first volume manufacturing line for perovskite-on-silicon tandem solar cells and employs over 70 people.
“Our latest efficiency achievement of 28.6% is more than 1.5% above our record set last year and exceeds our own roadmap plan of 1% annual increases,” said Chris Case, Chief Technology Officer at Oxford PV. “These record-setting solar cells are made on the same production line as our 27% efficient commercial solar cells, which already meet strict performance and reliability targets.”
“This world record on a large-area cell is our second in two years and marks another milestone for our technology,” said David Ward, Chief Executive Officer of Oxford PV. The accomplishment also demonstrates our strong intellectual property and is a credit to our team’s expertise and commitment. While we continue to develop our perovskite-on-silicon technology on small research-sized solar cells, our primary focus has been on improving our commercial-sized cells for the market, ramping up production, and collaborating with our solar module partners to prepare them for assembly into solar panels. During 2023, our team achieved excellent progress, and our unique solar cells are on their way to our module-manufacturing clients.”
