Oxford PV posts 28.6% efficiency on commercial perovskite-silicon tandem cell

Facebook
Twitter
LinkedIn
Reddit
Email
Scaling and stabilising perovskite cells is proving challenging for manufacturers the world over. Image: Oxford PV

Perovskite solar cell researchers Oxford PV have claimed a new world record for commercial solar cell efficiency, recording a 28.6% efficiency on a 258.15 cm2 perovskite tandem cell independently certified by Fraunhofer ISE.

The organisation stated that “the combined ‘perovskite-on-silicon’ tandem solar cell achieves a conversion efficiency that is substantially higher than that of mainstream silicon-only solar cells, which average 22–24%”.

This article requires Premium SubscriptionBasic (FREE) Subscription

Unlock unlimited access for 12 whole months of distinctive global analysis

Photovoltaics International is now included.

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Unlimited digital access to the PV Tech Power journal catalogue
  • Unlimited digital access to the Photovoltaics International journal catalogue
  • Access to more than 1,000 technical papers
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

The cell was produced at Oxford PV’s integrated production line in Brandenburg an der Havel, Germany. The factory commenced initial production of the company’s tandem solar cells for integration by solar module manufacturing partners and is now “ramping up to higher volumes”.

“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. 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,” said Chris Case, chief technology officer at Oxford PV.

Companies across the world are trying to commercialise perovskite solar technology, which is notoriously prone to degradation and instability when exposed to the elements. The tech has the potential to be a significant next step for solar power. Korean-owned manufacturer QCells announced a US$100 million investment into a pilot production line last week.

The full version of this story can be found on our sister site, Solar Power Portal.

Read Next

July 18, 2025
Georgia Power’s 2025 Integrated Resource Plan (IRP) will see the utility aim to install 4GW of new renewable power capacity by 2035.
July 18, 2025
Decisions and actions related to the US Department of Interior (DoI) will ‘undergo elevated review’ of solar PV and wind facilities.
July 17, 2025
Corporate funding in the solar sector fell by 39% in the first half of 2025 compared with the same period last year.
July 17, 2025
Swedish solar developer OX2 has submitted plans for a 150MW solar-plus-storage project in Queensland to Australia’s EPBC Act.
July 17, 2025
Pilecom, a mechanical installer of utility-scale solar projects, has officially started work on European Energy’s 106MW Lancaster solar PV power plant in Victoria, Australia.
July 16, 2025
Supply-demand imbalances and inventory pressures have driven down prices and negatively impacted the operational performance of several listed Chinese PV companies that released their 2025 interim forecasts this week.

Subscribe to Newsletter

Upcoming Events

Media Partners, Solar Media Events
September 2, 2025
Mexico City, Mexico
Solar Media Events
September 16, 2025
Athens, Greece
Solar Media Events
September 22, 2025
Bilbao, Spain
Solar Media Events
September 30, 2025
Seattle, USA
Solar Media Events
October 1, 2025
London, UK