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Researchers from the Indian Institute of Technology Bhubaneswar have designed a tandem solar cell based on a top perovskite device and a bottom cell relying on transition metal dichalcogenide (TMD).

The two-terminal perovskite–silicon tandem solar cell was fabricated through a chemical polishing method that selectively removes residual lead(II)iodide from the perorvskite film in the top cell.