Perovskite solar cells

Oxford PV has announced a record-setting 26.9% efficiency for its perovskite tandem module at Intersolar Europe 2024, the continent’s largest solar and energy storage event.

Developed through bandgap engineering and material design, the proposed PV device relies on a tin-based perovskite material known as CsSnI3-xBrx. It can reportedly be further designed to achieve power conversion efficiencies exceeding 24%.

Researchers in Bangladesh have designed a dual-junction tandem solar cell with a bottom device based on iron disilicide (FeSi2), an emerging absorber material know for its high thermal stability and good optoelectronic properties. Their simulation showed the advantage of combining the larger bandgap of the top cadmium telluride cell and the smaller bandgap of the bottom FeSi2 cell.

Silicon-perovskite tandem solar requires optimization of both approaches, and embodies the weaknesses of each. Meanwhile, the use of pure thin-film devices offers a cheaper, simpler, and more sustainable PV solution for the United States.

An international research team has developed a novel way to remanufacture fully encapsulated perovskite solar cells after recycling. The researchers say the devices can achieve 88% of the original efficiency of the products.

Perovskite technology, with its potential for large-scale deployment and local production, presents a compelling pathway towards a more secure and sustainable energy future.

Canada’s Solaires Entreprises says its indoor perovskite modules are suitable for powering a range of electronic devices, such as wireless keyboards, smart door locks, electronic shelf labels, and sensors.

Dutch scientists have developed a perovskite-PERC tandem solar cell based on a new type of tunnel recombination junction that reportedly offers an improved device efficiency distribution. The cell uses a nickel(II) oxide layer that is intended to reduce electrical shunts in the perovskite top cell.

Italian scientists have developed a flexible indoor perovskite solar cell with 32.5% efficiency. Their design uses a PET substrate combined with a tetrabutylammonium bromide layer over the perovskite absorber. This additional layer effectively reduces defect density and enhances the stability of the underlying 3D perovskite structure.

Scientists in Thailand built an indoor perovskite solar cell with low-cost carbon electrode architecture. The manufacturing process is based on antisolvent deposition and vacuum thermal annealing (VTA) and reportedly results in higher perovskite film quality.