Fig. 3: Optoelectronic properties of the control and perovskite/NVP films. | Nature Communications

Fig. 3: Optoelectronic properties of the control and perovskite/NVP films.

From: Monolithically-grained perovskite solar cell with Mortise-Tenon structure for charge extraction balance

Fig. 3

a Height images of perovskite films (5 × 5 μm). b PF-TUNA images of perovskite films (5 × 5 μm). TCSPC spectra of perovskite films were excited with laser (excitation: 520 nm, 55 nJ cm−2, 1 MHz) c from the HTL side and d, from the ETL side. e Surface height images and f, KPFM images of the interface between the perovskite and SnO2 layers. g Corresponding values of surface contact potential difference (CPD). h Plots of C−2 versus applied voltage by Mott–Schottky analysis in control and NVP-based perovskite solar cells.

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