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Published on 25/09/2022 12:37:24 | Source: ANI

Solvent study solves solar cell durability puzzle

Posted in Business Videos| #News

The manufacturing of high-efficiency solar cells with layers of 2D and 3D perovskites may be simplified by solvents that allow solution deposition of one layer without destroying the other. It took finding the right solvent design to apply a 2D top layer of desired composition and thickness without destroying the 3D bottom one (or vice versa). Such a cell would turn more sunlight into electricity than either layer on its own, with better stability. Chemical and biomolecular engineer Aditya Mohite and his lab at Rice's George R. Brown School of Engineering reported in Science their success at building thin 3D/2D solar cells that deliver a power conversion efficiency of 24.5%. Perovskites are crystals with cubelike lattices known to be efficient light harvesters, but the materials tend to be stressed by light, humidity and heat. Mohite and many others have worked for years to make perovskite solar cells practical.