Fig. 3: Device performance and stability.
From: Homogeneous 2D/3D heterostructured tin halide perovskite photovoltaics
a, Schematic of the device structure and cross-sectional scanning electron microscope image of THPSCs. b, J–V curves (dotted line, forward scan; solid line, reverse scan) and stabilized power outputs (inset) of the champion Cs0 and Cs5 devices in the laboratory. The maximum power output of the Cs0 and Cs5 devices was tracked at 0.73 and 0.85 V, respectively. c, EQE plots (solid lines and symbols) and integrated photocurrent responses (dashed lines) of the Cs0 and Cs5 devices. d, Statistical PCE distributions of THPSCs with different Cs molar ratios. Statistics were derived from 20 devices for each condition from different batches (whiskers: maxima and minima; bounds of box: 25th and 75th percentile; centre: mean). e, Comparison between certified PCE values from previously reported THPSCs (Supplementary Table 4) and this work. The red star indicates the certified PCE of this work. f, Shelf stability of unencapsulated THPSCs under dark conditions in N2 at 35 ± 5 °C for 6,000 h (initial PCEs: 12.73% for Cs0 and 16.39% for Cs5). g, Operational stability of unencapsulated THPSCs under continuous one-sun illumination at open-circuit status in N2 at 60 ± 5 °C for 1,500 h (initial PCEs: 12.55% for Cs0 and 17.09% for Cs5).
