Challenging the Limits of Silicon Solar Cell Performance

Wilhelm Warta

Fraunhofer Institute for Solar Energy Systems ISE

Dr. Wilhelm Warta received the Ph.D. degree in physics from the University of Stuttgart in 1985. He then joined Fraunhofer ISE where in recent years he was Head of the Department Characterization and Simulation/CalLab. He is author or coauthor of 400 papers in journals and conferences. His research interests include the development of characterization techniques and their application to crystalline silicon materials and solar cells, supported by advanced simulation of solar cells and cell processing. He also is head of the CalLab Solar Cells at Fraunhofer ISE, a leading lab for solar cell calibration with highest precision.


Key factor for reducing the cost of electricity from PV is the conversion efficiency of solar cells. For many years technologically achievable silicon solar cell efficiencies have been seen to be limited at around 26% - until... [ view full abstract ]


  1. Wilhelm Warta (Fraunhofer Institute for Solar Energy Systems ISE)

Topic Area

Photovoltaic and solar energy systems


PL3b » Plenary Speeches (10:45 - Friday, 27th April, Auditorium)

Presentation Files

The presenter has not uploaded any presentation files.