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Perovskite solar cells must come of age

Developing aging standards is required for industrialization Perovskite solar cells (PSCs) have reached peak performances rivaling those of established technologies that have been painstakingly optimized for decades (1–3). Their high power outputs and low production costs have attracted serious industry attention from established companies and have led to the founding of multiple start-up companies (4). However, for commercial products, long-term stability is crucial. Thus, for perovskites to succeed, an informed discussion on a standard for stability data is required.