NREL and CSEM set multi-junction III–V/Si solar cell efficiency record
PVTECH, Aug 29th, 2017 The U.S. Department of Energy’s National Renewable Energy Laboratory (NREL), the Swiss Center for Electronics and Microtechnology (CSEM), and the École Polytechnique Fédérale de Lausanne (EPFL) have reported dual-junction and triple-junction cell efficiency gains. In testing silicon-based multijunction solar cells, researchers have found that the highest dual-junction efficiency (32.8%) came from…