Photolysis and ion migration under electrical bias cause intrinsic instability in halide perovskite solar cells. By harnessing materials that both capture and confine iodide and polyiodide ions at the perovskite surface, the stability of devices under ultraviolet irradiation, thermal–light conditions or reverse bias can be greatly increased.

中文翻译：

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钙钛矿太阳能电池可承受光解作用并在反向偏压下保持稳定


电偏压下的光解和离子迁移导致卤化物钙钛矿太阳能电池固有的不稳定性。通过利用在钙钛矿表面捕获和限制碘离子和聚碘离子的材料，可以大大提高器件在紫外线照射、热光条件或反向偏压下的稳定性。