CIGS thin-film solar cells
by Dr. Wolfram Witte (Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg (ZSW))
at CERN ( 26-1-022 )
In recent years Cu(In,Ga)Se2 (CIGS) thin-film solar modules have become industrially established as an alternative to silicon-based solar modules. The CIGS technology is mature and the worldwide production is now in the GWp/year range. CIGS solar cells with a current record conversion efficiency of 20.8% for small-area cells have the highest demonstrated efficiency of all thin-film techniques (amorphous and micro-crystalline silicon as well as CdTe).