Nexwafe, a German wafer manufacturer, said that a perovskite-silicon tandem solar cell it developed in partnership with the Swiss Center for Electronics and Microtechnology (CSEM) has achieved a power conversion efficiency of 28.9%.
The tandem perovskite 2-junction cells used NexWafe’s EpiNex wafers and demonstrated their potential for advanced solar technologies. The company stated that with superior smoothness at the nano-scale, EpiNex wafers provide the ideal platform for the next generation of low-cost, solution-processed tandem perovskite cells.
NexWafe was spun out from Fraunhofer Institute for Solar Energy Systems ISE in 2015 and is a member of the Ultra Low-Carbon Solar Alliance, Solar Power Europe, and the European Solar Manufacturing Council.
