New passivation strategy paves the way for lead-free perovskite-silicon tandem solar cells

Scientists in Japan have developed a lead-free tin sulfide solar cell that is intended for applications in tandem perovskite-silicon PV devices. Through a new passivation technique based on the use of phenylsilane (PhSiH3) as a reducing agent, they were able to considerably increase the cell efficiency compared to a reference device with no PhSiH3 treatment.Researchers at the University of Electro-Communication in Japan have developed a tin perovskite solar cell with a bandgap wider than 1.6?eV that may be used as a top layer in lead-free perovskite-silicon tandem solar cells. The scientists acknowledged ...

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