Moisture, heat, and light instabilities of halide perovskites (HPs) represent a serious Achilles' heel that must be overcome, to enable future advancements in perovskite‐based optoelectronic devices such as solar cells and light‐emitting diodes. The instabilities are attributed to the unavoidable fragile ionic bonding between cationic and anionic parts of HPs during their formation. Surface passivation of HPs by various surface‐passivating materials has proven to be an attractive approach to stabilize perovskites against moisture, heat, and light, keeping intact their structural integrity and ionic bonding. Herein, the experimental and theoretical background for degradation mechanisms of HPs is reviewed along with various surface passivating materials to stabilize HPs. Finally, the existing challenges associated with thin‐film and device fabrication and an outlook for improving the stability of perovskites in optoelectronics are presented

中文翻译：

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介面工程促进卤化物钙钛矿对光电子应用中水分，热量和光的稳定

卤化物钙钛矿（HPs）的水分，热和光的不稳定性代表了必须克服的致命弱点，以使未来基于钙钛矿的光电器件（例如太阳能电池和发光二极管）取得进步。这种不稳定性归因于HP的阳离子和阴离子部分形成过程中不可避免的脆弱的离子键合。事实证明，通过各种表面钝化材料对HP进行表面钝化是一种稳定钙钛矿抗潮，抗热和抗光，保持其结构完整性和离子键完整的有吸引力的方法。在本文中，对HPs降解机理的实验和理论背景以及稳定HPs的各种表面钝化材料进行了综述。最后，