Considerations for transforming energy technologies: Lessons from and an introduction to metal halide perovskite photovoltaics

Over the past decade metal halide perovskites (MHPs) have emerged as potentially transformational materials for enabling low-cost high efficiency photovoltaics (PVs). In this talk the basic of these material and systems that makes them of such excitement for PV as, current state-of-the-art devices have reached lab scale solar cell efficiencies exceeding any other polycrystalline thin film technology. In addition, MHPs have shown the promise of creating low-cost high efficiency tandems based on both all-perovskite configurations and in combination with incumbent technologies (i.e., Si, CIGS) to target performance beyond single junction PV efficiency limits. This presentation will ask question about how we can take these lessons from PV material and apply them to our current understanding of hybrid semiconductors. The current status of the MHP-PV technologies will be touched upon from the perspective of what basic question need to be addressed in these semiconductor materials to translate their promise into deployable technologies that can have impact.