tandem perovskite-silicon solar cell

Voltec and the Institut Photovoltaïque d’Île-de-France (IPVF) plan to set up a pilot line for their new tandem panel tech in 2023 and their first 200 MW industrial demonstrator in 2025. They also plan to increase the factory’s capacity to 1 GW in 2027 and 5 GW by 2030.

A group of international researchers has developed a new perovskite-silicon solar cell design using a top perovskite PV device with an energy bandgap of 1.67 eV and a new self-assembly monolayer based on carbazole. The tandem cell achieved a higher efficiency compared to counterparts without the monolayer and passed the IEC 61215 standard thermal cycling test.

The US Department of Energy’s National Renewable Energy Laboratory (NREL) has confirmed Longi’s achievement of a world record-breaking efficiency rating of 33.9% for a perovskite-silicon tandem solar cell.

The Japanese electronic manufacturer said this is the world’s highest efficiency for a stacked solar cell that combines a tandem double-junction solar cell and a silicon solar cell.

US scientists have achieved a breakthrough in PV cell tech by creating a 24 cm2 perovskite-silicon tandem solar cell. It positions a lithium fluoride interlayer between a hole transport layer and the perovskite absorber to reduce shunting losses.

The Fraunhofer ISE has developed an electro-optically optimized transparent conductive oxide layer that can reportedly improve the efficiency of perovskite-silicon tandem solar cells. A device built with the film achieved remarkable efficiency and fill factor.

A year after achieving what at the time was a world record efficiency for a tandem perovskite-silicon solar cell, scientists from EPFL and CSEM published a paper showing the technical features of the device and how that result was made possible. The key was regulating the perovskite crystallization process using an additive in the processing sequence.

Qcells says it is building a pilot line for perovskite-silicon tandem solar cells that will start operations later this year in South Korea. It is working closely with its team in Germany, where it has already established another pilot line for tandem cells.

Kaneka’s two-terminal tandem perovskite solar cell has achieved the highest efficiency ever recorded for such a device based on an industrial Czochralski (CZ) silicon wafer. It has an open-circuit voltage of 1.929 V, a short-circuit current density of 19.5 mA cm−2, and a fill factor of 77.55%.

CEA-INES researchers and Enel have developed a new solar cell with an active area of 9 cm² and an open-circuit voltage above 1,880 mV. Their results improve on the 25.8% efficiency they achieved for the same kind of cell in December 2022.