perovskite solar cells

An international research team has fabricated an inverted perovskite solar cell with an electron transport layer passivated with amidinium ligands instead of ammoniun ligands. The device achived not only a superior performance compared to reference cells treated with ammonium, but also showed remarkable stability.

An international research team has fabricated a perovskite solar cell using sulfur-based additives to improve its resistance to moisture. The device not only achieved high efficiency levels but was also able to retain about 96% of its efficiency after 1,000 h.

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.