L R AS Published on Monday 12 September 2022 - n° 415 - Categories:R&D
In brief R & D: solar wind turbine, 24% perovskite cell, passivation of TOPCon cells, degradation of perovskite cells
In brief R & D: solar wind turbine, 24% perovskite cell, passivation of TOPCon cells, degradation of perovskite cells
A wind turbine whose blades are coated with solar cells is being tested in Switzerland.
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The American NREL achieved 24% efficiency with a perovskite cell. It retained 87% of its initial production capacity after 2,400 hours of operation at 55°C, using an inverted structure.
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Photovoltaic manufacturers are increasingly turning to N-type TOPCon technology because it uses a large proportion of P-type PERC production equipment. They are looking to improve efficiency and reduce cell production costs.
South Korean researchers compared two groups of cells with different thicknesses. They found that the thicker barrier offered better passivation quality and that diffusion of the boron dopant into the silicon during thermal annealing was the biggest threat to passivation quality and therefore to cell performance.
https://www.pv-magazine.com/2022/09/09/improving-n-type-topcon-solar-cells/
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Perovskite solar cells and perovskite-silicon tandems can be vulnerable to potential-induced degradation. Tandem cell devices are subject to potential-induced stress and have been found to lose up to 50% of their initial performance after just one day.
https://www.pv-magazine.com/2022/09/08/solar-perovskite-tandems-and-potential-induced-degradation/
