Figure 3.
Perovskite Compositional Change with Time
(A) Shockley-Queisser limit power conversion efficiency (PCE), open circuit voltage (VOC), short circuit current density (JSC), and fill factor (FF) as a function of band gap.
(B) A simplified diagram illustrating the direction of compositional change of the perovskite absorber.
(C) Comparison of the efficiency and perovskite compositions of PSCs from literature (Saliba et al., 2016a; Min et al., 2019; Liu et al., 2013; Im et al., 2014; Yang et al., 2015, 2017; Jeon et al., 2018).