Fig. 2: CsPbI2Br PSCs characterizations. | Nature Communications

Fig. 2: CsPbI2Br PSCs characterizations.

From: Surface chelation of cesium halide perovskite by dithiocarbamate for efficient and stable solar cells

Fig. 2

a Cross-sectional SEM image of a chelated perovskite device. Scale bar is 300 nm. b J–V curves of perovskite solar cells with different concentrations of Pb(DDTC)2 under simulated AM 1.5G illumination (100 mW cm−2). c PCE histograms of pristine (blue) and chelated (orange) CsPbI2Br PSCs. d J–V characteristics of the champion device for chelated CsPbI2Br solar cell at opposite scan directions. e Steady-state power output (blue) and current density (orange) of the champion cell measured at a fixed maximum power point (MPP) voltage (1.11 V) as a function of time. f EQE spectra (orange) and corresponding integrated photocurrent (blue) of the champion device.

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