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.
The European Solar Test Installation (ESTI) has confirmed the results of Longi’s new perovskite/silicon tandem solar cell. It is currently the second-highest efficiency record in the world for a perovskite/silicon tandem cell.
The European Solar Test Installation (ESTI) has confirmed the results of King Abdullah University of Science and Technology’s (KAUST) new perovskite/silicon tandem solar cell. The 1 cm2 device also achieved an open-circuit voltage of 1.974 V, a short-circuit current density of 20.99 mA/cm2, and a fill factor of 81.3%.
NASA has discovered that perovskite solar cells tested in space exhibit less degradation than reference devices tested on Earth. The agency acknowledged that it is uncertain about the specific factors in the space environment that contributed to the superior performance of the perovskite absorber film.
Researchers at the National Institute of Technology (NIT) Silchar, Assam, have designed a formamidinium tin iodide (FASnI3) active layer-based perovskite solar cell that achieves an admirable power conversion efficiency of 31.57% while scoring well on other performance parameters too.
Chinese researchers have developed a solar cell using CsSnI3 perovskite, known for its unique phase transitions and near-IR emissions. By simulating the device with various electron transport layers (ETLs) and hole transport layers (HTLs), they determined that the optimal cell could be created using a titanium oxide (TiO2) ETL and a nickel(II) oxide (NiOx) HTL.
First Solar has agreed to pay $38 million to buy Swedish manufacturing startup Evolar AB, as it seeks to expand development of high-efficiency tandem PV tech.
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