EU PVSEC: IMEC presents Cu-plated contact c-Si cell with 18.4% conversion efficiency

Facebook
Twitter
LinkedIn
Reddit
Email

IMEC has presented a large-area cell (125cm2) at the European Photovoltaic Solar Energy Conference that incorporates a shallow emitter and advanced front metallization using copper plating instead of silver, which has a conversion efficiency of 18.4%. IMEC plans to develop the technology to efficiencies above 20% and wafer thickness of 40µm.

“Using copper instead of silver adds to the sustainability of solar cell production,” remarked Dr. Joachim John, team manager at IMEC. “IMEC was able to do this because it has extensive experience with copper plating on silicon. A similar efficiency result was obtained with screen printed contacts, but the long-term sustainability and low-cost potential of Cu-based contacting solutions and the fact that this was a first result obtained without dedicated fine-tuning makes this result particularly encouraging.”

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

“These cells and the new metallization stack involved are a further successful step in IMEC’s target to develop ever more cost-effective, efficient crystalline Si solar cells – eventually targeting cells that are only 40µm thick with efficiencies above 20%,” commented Dr. Jef Poortmans, IMEC’s Photovoltaics Program Director.

IMEC noted that the shallow emitter results in an enhanced blue response, and thus in a higher conversion efficiency than with a standard emitter.  The front contacts used a novel metallization stack is added which is applied to local openings in the antireflective coating. 

Caption: IMEC’s i-PERC cell with shallow emitter and Cu metallization

Read Next

Premium
July 24, 2024
Policies in the EU and US to impose a carbon price on imported materials and goods will inevitably hit solar manufacturers.
July 24, 2024
The power purchase agreement consists of a portfolio of six solar PV projects located in the Italian regions of Lazio and Emilia Romagna.
July 24, 2024
A roundup of two agrivoltaics projects from different sides of the world, from US PV developer Avangrid and Lodestone Energy in New Zealand.
July 24, 2024
In Q2 2024, Enphase Energy shipped 574,000 microinverters from its US facilities, which benefit from the 45X production tax credits.
July 24, 2024
AEMO has granted BrightNight approval to connect its Mortlake Energy Hub, which includes solar and storage facilities, to the Victoria grid.
Sponsored
July 24, 2024
Sungrow's Lei Wang discusses the company's floating solar activities and opportunities for PV to go offshore.

Subscribe to Newsletter

Upcoming Events

Upcoming Webinars
July 31, 2024
1:00 PM (BST) / 2:00PM (CEST)
Solar Media Events
September 24, 2024
Warsaw, Poland
Solar Media Events
September 24, 2024
Singapore, Asia
Solar Media Events
October 8, 2024
San Francisco Bay Area, USA