Inventors of PERC technology awarded Queen Elizabeth engineering prize

Professor Martin Green, one of the lead inventors of PERC technology. Image: Anna Kucera via University of New South Wales.

The inventors of PERC (passivated emitter and rear cell) solar PV technology were awarded the 2023 Queen Elizabeth Prize for Engineering this week, in recognition of the transformative role that the technology has played in raising the efficiency and lowering the cost of solar PV and making it a cornerstone of the renewable energy transition across the globe.

Professor Martin Green, Professor Andrew Blakers, Dr Aihua Wang and Dr Jianhua Zhao researched and developed passivated emitter and rear cell technology, which improved the quality of both the top and rear surfaces of silicon solar cells and introduced a back layer behind the cell which reflects photons back into the silicon to produce more electrons.

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

Green and Blakers first developed PERC technology at the University of New South Wales in 1983, producing cells with 18% efficiency, eventually increasing to 19% and 20% over the following years. Zhao and Wang headed up the work that increased efficiency over the years at the lab, which eventually reached Green’s initial target of 25% in 1999.

Crucially, the researchers chose not to patent their discovery as they saw the potential benefits it held for the development of solar PV. This led to further developments across the industry until PERC became the most cost-effective, commercially viable and consistent solar technology in the world. Still, Professor Green’s laboratory has held the global PERC efficiency record for 30 out of the last 40 years since its initial development.

Since then, subsequent innovations in PV technology, like TOPCon (tunnel oxide passivated contact), have built on the foundation laid by PERC.

The Queen Elizabeth Award is given every year to engineers responsible for developments that have been “of global benefit to humanity”.

Professor Green said: “I am honoured to share this esteemed award with Andrew Blakers, Aihua Wang and Jianhua Zhao. As engineers, we are constantly striving to improve the world we live in. As the world feels the devastating impacts of our changing environment and collapsing ecosystems, I feel passionately that more must be done to reduce our reliance on fossil fuels and keep up with the trajectory of human civilization.

“I hope that PERC technology winning the QEPrize will open many people’s eyes to the possibilities of renewable energy.”

8 October 2024
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 8-9 October 2024 is our second PV CellTech conference dedicated to the U.S. manufacturing sector. The event in 2023 was a sell out success and 2024 will once again gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.
26 November 2024
Málaga, Spain
Understanding PV module supply to the European market in 2025. PV ModuleTech Europe 2024 is a two-day conference that tackles these challenges directly, with an agenda that addresses all aspects of module supplier selection; product availability, technology offerings, traceability of supply-chain, factory auditing, module testing and reliability, and company bankability.

Read Next

Subscribe to Newsletter

Upcoming Events

Solar Media Events
April 17, 2024
Lisbon, Portugal
Solar Media Events
May 1, 2024
Dallas, Texas
Solar Media Events
May 21, 2024
Sydney, Australia