15 September 2020 1 9K Report

I am trying to understand the effect of the grain boundaries on the emission and absorption profile of perovskite grain. I found few papers mentioning the PL will be more from grain interiors than in grain boundaries. this might be because of the trapping of the charge carrier in the Grain boundaries. Can anyone please give more details on it? Also how the absorption will be affected by the grain boundaries?

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