PEROVSKITES’ TECHNOLOGICAL IMPACT DEPENDS ON RESOLVING CRITICAL CHALLENGES IN THEIR SCALABLE LARGE AREA FABRICATION AND INHERENT CHEMICAL INSTABILITIES. THE MAIN GOAL OF THIS PROGRAM IS TO ADVANCE THE UNIFORMITY AND STABILITY OF PEROVSKITE MODULES BY ADDRESSING WEAKPOINTS FROM SCRIBING AND COATING DEFECTS THAT SEED REACTIONS ACCELERATING MODULE DEGRADATION AND LEAD TO PERFORMANCE DROP-OFF AT LARGE AREAS. OUR APPROACH WILL BE TO DEVELOP FLEXOGRAPHIC PRINTED SELF-LEVELING INKS THAT COMPENSATE INTRINSIC COATING DEFECTS AND PARTICLES VIA REDISTRIBUTIVE MARANGONI FLOWS. OUR FLEXOGRAPHY PROCESS WITH INLINE DRYING IS AN ULTRAFAST METHOD FOR DIRECTLY PATTERNING MODULES, ELIMINATING SCRIBES. OUTCOMES WILL INCLUDE PRODUCING DESIGN RULES FOR SELF-LEVELING PEROVSKITE INKS, IDENTIFYING THE MECHANISMS LINKING THE SPATIAL DISTRIBUTION OF MICRO-SCALE COATING DEFECTS WITH MODULE-LEVEL PHOTOVOLTAIC PERFORMANCE, AND DEMONSTRATING LARGE AREA, HIGH EFFICIENCY PEROVSKITE MODULES INCORPORATING THESE NEW FLUID MECHANICAL INK DESIGN STRATEGIES.