Researchers at EPFL’s Photovoltaics Laboratory and the CSEM PV-center have reported a record tandem junction solar cell with conversion efficiencies of 25.2%, using a standard monocrystalline cell and an evaporation and spin-on process to fully coat the structure.
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.
The Swiss non-profit research and technology organisation, the Swiss Centre for Electronics and Microtechnology (CSEM), today unveiled new PV facilities to include a 500m² cleanroom and 600m² module testing and production laboratories.
Silicon heterojunction solar cells demonstrate key advantages of high conversion efficiency, maximum field performance and simplicity of processing. The dedicated materials, processes and technologies used for the metallization and interconnection of this type of cell are reviewed in this paper.
Collaboration by the U.S. Energy Department's National Renewable Energy Laboratory (NREL) and at the Swiss Center for Electronics and Microtechnology (CSEM) has set a certified record conversion efficiency of 29.8% for a III-V/Si solar cell.