Fig. 2: Comparison of 3D-only and 3D@2D perovskite solar cell performance. | Communications Materials

Fig. 2: Comparison of 3D-only and 3D@2D perovskite solar cell performance.

From: Moisture tolerant solar cells by encapsulating 3D perovskite with long-chain alkylammonium cation-based 2D perovskite

Fig. 2

a Schematic illustration of 2D-coated perovskite solar cell (PSC) with regular configuration, b current-voltage characteristic of 3D-only and C18 perovskite-coated PSCs, c comparison of the current–voltage characteristic of 3D-only and 2D perovskite-coated PSCs. Photovoltaic parameters determined from the J–V characteristic of a relevant number (50 in total) of 3D-only and C18 perovskite-coated PSCs: d PCE, open-circuit voltage (Voc), short-circuit current density (Jsc) and fill factor (FF). e The statistical distribution of PCE values of 3D-only and C14, C16, and C18 perovskite-coated PSCs. f Effect of variation in concentration of C18 perovskite per ml THF on PCE values of PSCs. g Steady-state photocurrent density and PCE of the 3D-only and C18-coated PSC monitored at a maximum powerpoint under 1-sun AM 1.5-G illumination. h Incident photon-to-electron-conversion efficiency (IPCE) spectra and the corresponding integrated Jsc of 3D-only and C18 perovskite-coated PSCs.

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