Photo from Scientific Research

Photographs of fresh and 24 h aged unencapsulated perovskite film (1.0 cm by 2.0 cm) without and with DMPESI treatment of different concentrations (from left to right: reference, 1 mg ml −1 , 3 mg ml −1 , 5 mg ml −1 , 10 mg ml −1 ) in high humid condition of R.H. 85 ~ 95%.

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