Fig. 4: Photovoltaic performance of SP and PHJ solar cells.
a–g, Distribution of VOC (a), JSC (b), FF (c), PCE parameters (d), EQE spectra (e), J–V characteristics (f) and hysteresis index (g) of SP and PHJ solar cells with varying thicknesses. h, Comparison of PCEs of standard and inverted architecture CsPbI3 solar cells (data taken from refs. 28,29,31,33,36,37,43,44,45,46,47,48,49). The curves drawn on top of the data are presented as guides to the eye. The box plots in a–d and g display the mean, median line, 25~75% box limits with 1.5× interquartile range whiskers. The number of samples of each column of panels a, b, c, d and g is 64, 7, 8, 23, 30, 46, 120, 39, 74, respectively. Twenty-one data points from the same batch for ‘β-CsPbI3’ are also used in Supplementary Fig. 12 as ‘370 nm’. From ‘β-CsPbI3’, ‘γ-CsPbI3’, ‘PHJ100’ in d, 18 data points of the same batch are also provided in Supplementary Fig. 14.
