Fig. 7
From: Dimensionality engineering of hybrid halide perovskite light absorbers
Degradation analysis of a PSC device and the influence of MDP strategy. a Examples of intrinsic and extrinsic degradation mechanisms that lead to device failure at different timescales on a fresh hybrid perovskite device. b Energetics of perovskite formation and stability. Unit cell structure of (PEA)2(MA)n−1PbnI3n+1 perovskites with different n values, showing the evolution of dimensionality from 2D (n = 1) to 3D (n = ∞) (Reproduced with permission from ref. 34); c DFT simulation of the decomposition lifetime with different n values in different atmospheres (Reproduced with permission from ref. 34; d Summary of stability test results. Data composed based on Table 1. (red dot: 1D and 2D perovskite; green dot: MDP; blue dot: 3D perovskite; each spot represents one residual PCE after certain test time span under one stability test condition)
