Trina Solar uses super-sized n-type mono wafer for record 24.58% i-TOPCon bifacial Cell

Facebook
Twitter
LinkedIn
Reddit
Email
The record cell was fabricated at Trina Solar’s State Key Laboratory (SKL) of PV Science and Technology (PVST) and independently confirmed by the ISFH CalTeC in Germany. Image: Trina Solar

‘Solar Module Super League’ (SMSL) member, Trina Solar has set a conversion efficiency record of 24.58% for an i-TOPCon (Industrial Tunnel Oxide Passivated Contact) bifacial solar cell using a super-sized 244.62 cm2 wafer.

“We are very delighted to announce the latest achievement from our research team at the SKL PVST. To the best of our knowledge, this is the new world record for total area efficiency for a large-area two-side contact silicon solar cell”, said Jifan Gao, the CEO of Trina Solar. “The excellent R&D results lays a solid foundation for Trina Solar to provide new differentiated high-end PV modules and solutions to our customers.”

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

The record cell was fabricated at Trina Solar’s State Key Laboratory (SKL) of PV Science and Technology (PVST) and independently confirmed by the ISFH CalTeC in Germany.

The advanced i-TOPCon cell deploys a front boron emitter and a rear full-area passivating contact.

2 February 2027
London, UK
Returning in 2027 for its 14th edition, Solar & Storage Finance Europe will bring together the brightest minds representing funds, banks, developers, utilities, government and industry across Europe and the UK on a programme that is solutions-focused from top to tail. The event is designed to enable leaders at the forefront of solar and storage investment and deployment in Europe to scale, learn and land themselves industry defining partnerships.

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.
September 1, 2026
The Bundesnetzagentur has launched its third rooftop solar PV tender of the year, which aims to award 296.3MW of new rooftop solar capacity.

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