3 degradations (IMAGE)
Caption
Three key degradation mechanisms were observed in PSCs that had undergone natural ageing in HZB’s outdoor laboratory in Berlin. The most significant of these is phase segregation (left), whereby the compositional changes in perovskite material lead to the formation of circular domains a few micrometres in diameter. The other two mechanisms are copper corrosion (middle) and edge patterns (right), which are primarily related to cell design.
Credit
HZB
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License
CC BY-SA