Fig. 5: Environmental and water stability. | Communications Materials

Fig. 5: Environmental and water stability.

From: Moisture tolerant solar cells by encapsulating 3D perovskite with long-chain alkylammonium cation-based 2D perovskite

Fig. 5

XRD patterns of (a) 3D-only and (b) 3D@C18 thin films illustrating the evolution of degradation in 3D-only perovskite thin films and 2D perovskite prevents this degradation when monitored over a period of two months and stored under an ambient atmosphere with a relative humidity of 25-80%. c Variation in PCE of nonencapsulated 3D-only PSCs and C14, C16, and C18 perovskite-coated PSCs kept under ambient atmosphere (RH 25–80%, 10–25 °C, in the dark). d Photograph of 3D-only (on the left) and C18 perovskite-coated 3D perovskite (on the right) thin films after immersion in water for 3 min.

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