Fig. 5
From: Progress and outlook of Sn–Pb mixed perovskite solar cells
Precursor design via concentration and additives for improving perovskite film quality. a EQE curves, XRD FWHM values of (100) peak and carrier lifetime via TRPL of (FASnI3)1-x(MAPbI3)x perovskite with different thickness. Reproduced with permission from [53], copyright Springer Nature, 2017. b Various additives effects on the morphological evolution of Sn–Pb perovskite confirmed by SEM. c Carrier lifetime via TRPL and J-V curves of perovskite solar cells and with and without additives. Reproduced with permission from [28], copyright The American Association for the Advancement of Science, 2019. Reproduced with permission from [16], copyright Springer Nature, 2018