Researchers achieve greater efficiency by manufacturing solar cells from crystal silicon
Photovoltaic systems are indeed enjoying a boom worldwide, yet the situation for German manufacturers of solar cells and module is critical. The reasons for this are worldwide excess capacities and manufacturers from China who have flooded the world market with modules with approximately 15 % efficiency at dumping prices. German and other European manufacturers will only be able to keep up if they are able to offer cells and modules with higher degrees of efficiency at competitive prices. The Institute for Photovoltaics (ipv) at the University of Stuttgart has now set a new record in the hunt for the highest degrees of efficiency using the simplest possible production processes. In a project funded by the Federal Environmental Ministry, success was achieved in manufacturing cells from crystal silicon with almost 22 % efficiency.