Fig. 3: Characterization of mixed Pb–Sn perovskite films with passivating agents. | Nature

Fig. 3: Characterization of mixed Pb–Sn perovskite films with passivating agents.

From: All-perovskite tandem solar cells with improved grain surface passivation

Fig. 3

a, b, SEM images of the control (a) and CF3-PA (b) perovskite films. c, XRD patterns of the control, PEA, PA and CF3-PA perovskite films. a.u., arbitrary units. d, e, Steady-state (d) and time-resolved (e) PL spectra of the control, PEA, PA and CF3-PA perovskite films. f, Mobilities and diffusion lengths of the CF3-PA and control Pb–Sn perovskite films.

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