27.3 %: World Record for Perovskite Solar Cells

Perovskite-based tandem solar cells can achieve now efficiencies better than 25 %. (Source: HZB)

Oxford PV, leader in the field of perovskite solar cells, announced a new, certified, world record for its perovskite based solar cell. Its 1 cm2 perovskite-silicon tandem solar cell has achieved a 27.3 % conversion efficiency, certified by the Fraunhofer Institute for Solar Energy Systems ISE. This exceeds the 26.7 % efficiency world record for a single-junction silicon solar cell.

Frank Averdung, chief executive officer at Oxford PV commented, “This result further validates the ability of perovskite to enhance the performance of silicon based photovoltaics. Continuing to improve the performance of photovoltaics is fundamental for sustaining the growth of solar generated electricity.”

Dr Chris Case, chief technology officer at Oxford PV added, “We are continuing to push our perovskite-silicon solar cell technology with a roadmap that extends beyond 30 % efficiency, driving the world towards an all-electric future. Oxford PV counts on the support of development partners, suppliers and customers to deliver its perovskite solar technology.”

Oxford PV’s 156 mm × 156 mm perovskite-silicon tandem solar cells at the company’s industrial pilot line, Germany. (Source: Oxford PV)

The new record demonstrates the considerable progress the company has made in driving its perovskite solar solution closer to commercialization. Oxford PV is in the process of scaling its perovskite-silicon solar cell technology from the lab to high volume manufacturing. The company is producing commercial sized 156 mm × 156 mm perovskite-silicon solar cells, at its 17,000 square meters industrial pilot line in Germany, for validation by its development partner – a major manufacturer of silicon solar cells and modules.

At the World Conference on Photovoltaic Energy Conversion, WCPEC-7 in Waikoloa, Hawaii, tandem solar cells involving perovskites were an important topic: two records have been presented with 25.2 % certified efficiency: one from the group of Christophe Ballif at EPFL / CSEM and one from the consortium HZB / OxfordPV / Oxford University, presented by HZB scientist Bernd Stannowski. The third one, with 25.0 % certified efficiency, is a tandem cell developed by an HZB team headed by Steve Albrecht.

Oxford PV was established in 2010 and has had a close working relationship with Professor Snaith’s research group at the University of Oxford. In January 2018, Oxford PV announced its collaboration with HZB, the leading German research center focused on energy materials research. (Sources: Oxford PV / HZB)

Links: The perovskite-silicon tandem, Oxford PV – The Perovskite Company, Oxford, United KingdomHySPRINT – A Helmholtz Innovation Lab, Berlin, GermanyPVcomB: Competence Center Thin-Film- and Nanotechnology for Photovoltaics Berlin, Germany


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