EU PVSEC: Heraeus touts breakthrough ‘LECO’ tech increasing cell efficiencies by 0.15%

Facebook
Twitter
LinkedIn
Reddit
Email
Heraeus Photovoltaics has collaborated with German company, Cell Engineering to develop metallization pastes for its ‘LECO’ (Laser Enhanced Contact Optimization) technology that can increase multiple solar cell architectures conversion efficiencies by up to 0.15%. Image: Heraeus

Major PV materials supplier, Heraeus Photovoltaics has collaborated with German company, Cell Engineering to develop metallisation pastes for its ‘LECO’ (Laser Enhanced Contact Optimization) technology that can increase multiple solar cell architectures conversion efficiencies by up to 0.15%.

Heraeus noted that it had developed specific pastes for Cell Engineering’s patented LECO technology that was applicable to several different cell types, including P-type ultra-low doped homogeneous PERC, selective emitter (SE) PERC, N-type PERT and TOPCon.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Martin Ackermann, President of Heraeus Photovoltaics, said, “Our collaboration and partnership with Cell Engineering has produced what we believe is a potential game-changer for solar cell metallisation. It will enable ‘perfect’ metallisation contacts and help customers get even greater performance from their solar cells.”

Hans Jochen von Bomhard, Managing Director Cell Engineering added, “Cell Engineering offers the customer the optimal equipment for the use of LECO pastes. The production spectrum includes a laboratory machine as well as equipment for integration into cell lines”. 
 
Heraeus said it had previously acquired a LECO tool and invented new metallisation paste to take advantage of the new technology. The breakthrough LECO tool and metallisation package is said to be a simple add-in technology that significantly reduces metal-induced recombination while maintaining low contact resistance. As a result, cell efficiencies are increased with minimal impact to production lines.

Heraeus will present its work on LECO-specific paste development at the EU PVSEC 2019 conference, on Thursday, September 12.

7 October 2025
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 7-8 October 2025 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023 and 2024 were a sell out success and 2025 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.

Read Next

September 17, 2025
Chinese module producer DAS Solar is planning a 5GW manufacturing facility focused on producing high-efficiency back contact cells.
September 17, 2025
PV CellTech: Martin Pochtaruk, CEO of North American solar module manufacturer Heliene, says US producers must learn to survive without tax incentives.
September 16, 2025
IB Solar is investing INR30 billion (US$340 million) in a 4GW TOPCon solar cell and module manufacturing plant in Jewar, Uttar Pradesh.
September 15, 2025
Vikram Solar has secured a contract to supply 200MW of modules to AB Energia, a domestic solar engineering, procurement, and construction (EPC) solutions provider. 
September 11, 2025
US cell manufacturer ES Foundry is proceeding with expansion plans despite a six-month delay due to recent trade and tax credit policy uncertainties.
Premium
September 11, 2025
PV CellTech USA: US cell manufacturer ES Foundry’s CEO Alex Zhu discusses his company's rapid ascent, strategic technology choices and the challenges of operating in a shifting policy environment.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
September 30, 2025
Seattle, USA
Solar Media Events
October 1, 2025
London, UK
Solar Media Events
October 2, 2025
London,UK
Solar Media Events
October 7, 2025
Manila, Philippines
Solar Media Events
October 7, 2025
San Francisco Bay Area, USA