In the final part of our study, we extracted and employed results from ML models to investigate the effect of fabrication parameters on PV properties. By only applying the parameters that can increase the property values shown in Figure , we obtained the champion recipe, which we used to fabricate the final batch of 2DRP PSCs. The final solar cells were tested for their performance (PCE, VOC, JSC and FF). The fabrication details can be found in the Experimental Section, and the performance metrics can be viewed in Figure in Supporting Information.