Evaluating tandem cells, from the bottom up


From pv magazine International

The past year has seen plenty of research focused on large-scale processes to bring the impressive achievements made with perovskite thin films into large-scale production. And while there’s still plenty of disagreement over how long we’ll have to wait before seeing the technology take significant market share, perovskites are widely expected to have a major role to play in the future of PV.

And the first commercial iteration of the technology will almost certainly be in the form of a tandem cell, with a more conventional silicon technology sitting underneath. While much of the research community continues to focus on ironing out issues with the perovskite material, Germany’s Fraunhofer Institute for Solar Energy Systems (ISE) decided to look into the silicon cell underneath, evaluating the performance of various cell types for their compatibility with a perovskite top cell, aiming to identify pathways to higher energy yields from solar, at lower costs for manufacturing and deployment.

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