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Perovskite

Fully printable flexible perovskite solar cell achieves 17.6% efficiency

Developed by scientists in Canada, the 0.049 cm2 solar cell was built in ambient air fabricationand with a reactant known as phenyltrimethylammonium chloride (PTACl). It achieved an open-circuit voltage of 0.95 V, a short-circuit current density of 23 mA cm−2, and a fill factor of 80%.

Inverted perovskite solar cell with 2D/3D heterojunctions achieves 25.6% efficiency

An international research team claims to have achieved optimal passivation in inverted perovskite solar cells by applying thin layers of low-dimensional perovskite on top of a 3D perovskite film. The resulting cell achieved an open-circuit voltage of 1.19 V, a short-circuit current density of 24.94 mA cm2, and a fill factor of 85.9%.

Inverted perovskite solar cell with antimony-doped tin oxides achieves 25.7% efficiency

Researchers in Singapore have built an inverted perovskite PV device with a p-type antimony-doped tin oxides (ATOx) interlayer that reportedly reduces the efficiency disparity between small and large-area perovskite cells. According to their findings, ATOx may easily replace commonly used nickel oxides (NiOx) as a hole transport material.

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Triple-junction perovskite–perovskite–silicon solar cell achieves record-breaking efficiency of 24.4%

Developed by scientists in Germany, the triple-junction cell is based on a perovskite top cell with an energy bandgap of 1.84 eV, a perovskite middle cell with bandgap of 1.52 eV, and a silicon bottom cell with a bandgap of 1.1 eV. The device achieved an open-circuit voltage of 2.84 V, a short-circuit current of 11.6 mA cm–2, and a fill factor of 74%.

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US researchers develop 108 cm2 perovskite solar module with 19.21% efficiency

The scientists built the panel with perovskite solar cells treated with trifluoromethane sulfonate to combat iodide defects. The mini module reportedly achieved the highest efficiency ever recorded for its size to date, with the result being confirmed by the US National Renewable Energy Laboratory (NREL).

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U.S. startup advances solar perovskite thin film roll-to-roll coating

Verde Technologies, a U.S.-based spinoff of the University of Vermont specializing in single junction and all thin-film tandem perovskite solar technologies, has demonstrated that its coating processes are transferable to existing commercial roll-to-roll manufacturing lines in a project with compatriot manufacturer Verico Technology.

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Merida Aerospace developing perovskite PV cells for space

Merida Aerospace, a US aerospace company, is developing perovskite solar cells for low-Earth-orbit satellites. It says perovskite solar cells could be a more cost-effective and efficient option than traditional cells.

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Sekisui Chemical to open solar module factory in Slovakia

Denisa Sakova, Slovakia’s Deputy Prime Minister and Minster of Economy, has signed an agreement with Japanese plastics manufacturer Sekisui Chemical, which is developing flexible photovoltaic panels. Sakova says the aim is to explore the possibility of producing the panels in Slovakia.

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Laser-assisted hermetic encapsulation tech for perovskite PV modules

Pixel Voltaic, a spinoff of University of Porto, has launched a laser system to hermetically seal glass-glass and glass-steel perovskite PV modules up to 30 cm x 30 cm. The company’s technology roadmap is to increase capacity to accommodate larger device areas of up to 1 m2, and to modify the process to operate within a roll-to-roll line.

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CubicPV halts plans for US solar silicon wafer factory

CubicPV has halted its plans to build a US solar silicon wafer factory, as it has shifted its focus to producing perovskite tandem modules.

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