ZSW sets another new CIGS solar cell record

Facebook
Twitter
LinkedIn
Reddit
Email

The Stuttgart-based researchers at Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg, Germany (Centre for Solar Energy and Hydrogen Research, ZSW) have demonstrated a CIGS solar cell conversion efficiency of 20.3%. The area of the world record cell is 0.5 square centimetres and surpasses their previous record of 20.1%, established in April 2010.

“Our researchers have made the cells in a CIGS laboratory coating plant using a modified co-evaporation process, which in principle can be scaled up to commercial production processes,” noted Michael Powalla, member of the board and head of the photovoltaics division at ZSW. “The Fraunhofer ISE in Freiburg, Germany, has confirmed the new results. However, it would take a while before the increased efficiency of CIGS solar cells can be commercially utilised.”

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

Manz Automation has recently signed a licensing and strategic alliance agreement with Würth Solar, which partnered with ZSW on CIGS technology. Manz is now responsible for introducing advances and turnkey solutions based on the R&D at ZSW.

Read Next

May 15, 2026
ISC Konstanz is upgrading its cleanroom facilities to operate a fully integrated solar cell and module pilot line by Q3 2026. 
May 15, 2026
India installed a record 15.3GW of solar capacity in the first quarter of 2026, according to new data from market research firm Mercom. 
May 15, 2026
Indian rooftop solar company Fujiyama Power has commissioned a 2GW solar module manufacturing facility in Ratlam, Madhya Pradesh. 
Premium
May 15, 2026
PV Tech Premium analyses whether this new PV trade scrutiny on Ethiopia could be a sign of accelerated protectionism from US manufacturers.
Premium
May 15, 2026
While CfDs are the most attractive route to market in UK solar, EDF's Ross Irvine says that there are opportunities for corporate PPAs.
May 15, 2026
New Zealand utility Meridian Energy has received consent to build a 120MW solar PV project alongside a planned battery energy storage system (BESS).

Upcoming Events

Solar Media Events
May 20, 2026
Porto, Portugal
Upcoming Webinars
May 27, 2026
9am BST / 10am CEST
Upcoming Webinars
May 27, 2026
9am BST / 10am CEST
Media Partners, Solar Media Events
June 2, 2026
Johannesburg, South Africa
Media Partners, Solar Media Events
June 3, 2026
National Exhibition and Convention Center (Shanghai)