Abstract
As metal halide solar cells reach photoconversion efficiencies over 25%, one question that is often being asked is, “What is next?” Interestingly, there are plenty of new opportunities to explore in the perovskite world. The four articles selected for the Energy Spotlight in this issue are just a few examples to show the dynamic nature of metal halide perovskite research. New inroads are being made to explore new heterostructures and luminescent semiconductor nanoclusters, understand phase stability, and offer new insights into excited state processes. Such advances provide new avenues to further expand the scope of perovskite research, offering new areas to explore.
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