perovskite solar cells

The Japanese government says it expects perovskite solar modules to be produced in large quantities at JPY 20 ($0.13)/W by 2025, JPY 14/W by 2030, and JPY 10/W by 2040.

Scientists in China have conceived a perovskite solar cell that uses a back mirror based on silver to improve light harvesting. The device could reportedly achieved a power conversion efficiency of over 27%.

The experimental device achieved an open-circuit voltage of 1.21 V, which is the highest value reported to date for highly efficient perovskite photovoltaics. The cell is based on a photo-ferroelectric 2D/3D/2D perovskite junction integrating a 2D ferroelectric perovskite single crystals in the perovskite bulk.

Developed by Scientists in China, the solar cell reportedly achieved the highest open-circuit voltage ever recorded for an inverted perovksite PV device. The lead carbanion layer was responsible for reducing defects at the interface bewteen the perovskite layer and the electron transport layer.

Researchers in China have proposed a new lithium-free doping strategy to fabricate spiro-OMeTAD-based hole transport layers (HTLs) for applications in perovskite solar cell. A PV device built with a salt-doped HTL achieved a record-breaking efficiency of 25.45%.

An international team of researchers demonstrated perovskite solar cells treated with a molecular passivator based on π-conjugated terpyridine Lewis-base molecules that achieved 25.24% power conversion efficiency, with 90% retained after 2,664 hours of light exposure. The treatment reportedly works at high concentrations without damaging the perovskite film or diminishing cell performance. A protocol was published to reproduce the results, opening the door to testing it on a range of perovskite absorbers.

Researchers in Portugal adopted a new light trapping strategy to build an ultrathin perovskite solar cells that may reportedly have a longer operational lifetime. They utilized an LDS coating combined with a checkerboard photonic front structure to protect the cells against UV-enabled degradation and simultaneously improve UV irradiation.

Japan’s Sekisui Chemical launched an agrivoltaics project in partnership with Terra, a unit of Japan-based Citizen Energy Chiba, to test the peformance of its perovskite solar cell technology and the effect of the PV system on plants.

Researchers at City University of Hong Kong have developed a monolithic perovskite-organic tandem solar cell with a wide-bandgap subcell that reportedly provides “remarkable” stability. The tandem device achieved one of the highest efficiencies ever reported for this type of solar cell technology.

An international research team has developed an all-perovskite tandem PV device that reportedly shows reduced recombination losses in the cell’s bottom device and remarkable stability. To improve the perovskite solar cell’s surface, the scientists created partially non-conductive and non-functional areas that protect the perovskite area underneath from becoming defective.