Four Junction solar cell hits new record at 44.7%
Semiconductor Today, September 25th, 2013 The Fraunhofer Institute for Solar Energy Systems ISE in Freiburg, Germany, concentrated photovoltaic (CPV) system maker Soitec of Bernin, France, micro/nanotechnology R&D center CEA-Leti in Grenoble, France and the Helmholtz Zentrum Berlin have jointly achieved a new record for solar energy conversion efficiency by using a new cell structure with…