Research / 2020 / Article / Fig 3

Research Article

Origin of High Efficiency and Long-Term Stability in Ionic Liquid Perovskite Photovoltaic

Figure 3

The crystallization and structure transformation by the time-resolved GIWAXS. (a) 2D mapping of a real-time evolution process based on MAAc perovskites. (b) 1D GIWAXS diffraction pattern of MAAc thin films in the direction for 40 frames (10 s per frame). (c) 2D GIWAXS diffraction images of MAAc perovskites. (d) 2D mapping of a real-time evolution process based on DMF perovskite. (e) 1D GIWAXS diffraction pattern of DMF thin films in the direction for 40 frames (10 s per frame). (f) 2D GIWAXS diffraction images of MAAc perovskites. The diagram of the mechanism of the perovskite crystal growth process in different solvents: (g) MAAc and (h) DMF.
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