Fig. 4 | Nature Communications

Fig. 4

From: Gas-solid reaction based over one-micrometer thick stable perovskite films for efficient solar cells and modules

Fig. 4

Solar cells and modules. a Cross-sectional-view SEM image of the PSC based on 1.1-μm-thick films. b, c Histograms of the thickness and root-mean-square (RMS) roughness of 16 1.1-μm-thick MAPbI3(Cl) samples, respectively. d Photograph of the 1.1-μm-thick MAPbI3(Cl) film on a 5 cm × 5 cm substrate with the mirror-like smooth surface. e Photograph of a 12.0 cm2 six-cell perovskite solar module fabricated using our new method. f J–V curve of the 5 cm × 5 cm perovskite module with an active area of 12.0 cm2 based on 1.1-μm-thick MAPbI3(Cl) films

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