PV research institute Fraunhofer ISE has reported a new efficiency record of 22.3% for a multi-junction solar cell made of silicon and III-V semiconductor materials using a direct epitaxy process developed with tool supplier AIXTRON.
Nanoelectronics R&D organisation imec has reported a record 4-terminal Perovskite/silicon tandem photovoltaic cell with a conversion efficiency of 27.1%, while claiming further microcrystal engineering leads a path of efficiencies of over 30%.
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.
Move over pesky perovskites and old faithful intrinsic amorphous silicon as the preferred solutions for tandem-junction solar cell post crystalline-silicon PERC (passivated emitter rear cell) technology: A perennial conversion efficiency record holder and space-proven solution is back to gate-crash the party.
The Solar Energy Research Institute of Singapore (SERIS) at the National University of Singapore (NUS) has set a new R&D goal to develop a commercially viable thin-film-on-silicon tandem solar cell with 30% conversion efficiencies.