[SMM PV Flash] Visible light transmittance of 43.2%, efficiency of 9.26% — Fraunhofer ISE develops semi-transparent organic PV module

Published: Sep 1, 2026 13:31

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The Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE) and the University of Freiburg have developed semi-transparent organic PV modules using a scalable production process, achieving a maximum module efficiency of 9.26%, an average visible light transmittance of 43.2%, and a maximum light utilization efficiency (LUE) of 4.0%. These modules can be used in scenarios that require both power generation and light transmission, such as building facades, greenhouses, and vehicle roofs. In addition, the researchers fabricated a flexible module prototype that retained 100% of its initial efficiency after being bent 1,274 times around a rod with a diameter of 15 mm.

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