Improving the long-term stability of perovskite solar cells is critical to the deployment of this technology. Despite the great emphasis laid on stability-related investigations, publications lack consistency in experimental procedures and parameters reported. It is therefore challenging to reproduce and compare results and thereby develop a deep understanding of degradation mechanisms. Here, we report a consensus between researchers in the field on procedures for testing perovskite solar cell stability, which are based on the International Summit on Organic Photovoltaic Stability (ISOS) protocols. We propose additional procedures to account for properties specific to PSCs such as ion redistribution under electric fields, reversible degradation and to distinguish ambient-induced degradation from other stress factors. These protocols are not intended as a replacement of the existing qualification standards, but rather they aim to unify the stability assessment and to understand failure modes. Finally, we identify key procedural information which we suggest reporting in publications to improve reproducibility and enable large data set analysis.

改善钙钛矿太阳能电池的长期稳定性对于部署该技术至关重要。尽管非常重视稳定性相关的研究，但出版物在实验程序和所报告的参数方面缺乏一致性。因此，要再现和比较结果，从而对降解机理有深入的了解，就具有挑战性。在此，我们报告了本领域研究人员之间就钙钛矿太阳能电池稳定性测试程序达成的共识，该程序基于有机光伏稳定性国际峰会（ISOS）协议。我们提出了其他程序，以解决特定于PSC的特性，例如电场下的离子重新分布，可逆降解，以及将环境引起的降解与其他应力因素区分开来。这些协议并非旨在取代现有的资格标准，而是旨在统一稳定性评估并了解故障模式。最后，我们确定关键的程序信息，建议在出版物中进行报告，以提高可重复性并进行大数据集分析。