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.

Read Next

September 3, 2026
In this week's PV Chart of the Week, we look at disparity between announced and operational cell and module manufacturing capacity in the US across PERC, TOPCon and HJT.
September 3, 2026
PERC, TOPCon or HJT? In the fourth of five articles this week, Moustafa Ramadan and Joe Hennessy of PV Tech Research examine emerging technology trends in US solar cell and module manufacturing.
Premium
September 3, 2026
Heterojunction is emerging as the n-type technology of choice as US PV manufacturers seek to minimise IP-related risks.
September 2, 2026
In the third part of this week’s series exploring the US solar supply chain, we track how quickly announced manufacturing capacity is translating into real production.
September 1, 2026
US module production is at a near saturation point, but significant capacity gaps persist further up the supply chain, writes head of PV Tech Research, Moustafa Ramadan.
August 28, 2026
Importing solar modules to the US will “no longer make any economic sense” under new Section 232 tariffs for polysilicon-based products, according to Intertek CEA.

Upcoming Events

Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK