Proposed corrosion mechanism of the silver electrode in perovskite solar cells

14. October 2015 - 18:48

The animation shows the layers of the perovskite solar cell and the proposed mechanism of corrosion of the silver electrode. Water molecules diffuse through the pinholes of the spiro-MeOTAD layer and induce the decomposition of the perovskite producing iodine-containing compounds. The iodine-containing compounds migrate to the silver layer, and corrode it. This can explain why silver iodide is found on corroded solar cells.  

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