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Secondary Ion Mass Spectrometry (SIMS) for Chemical Characterization of Metal Halide Perovskites

机译：金属卤化物钙钛矿化学表征二次离子质谱（SIMS）

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摘要

Metal halide perovskite (MHP) solar cells have attracted much attention due to the rapidly growing power conversion efficiency that has reached 25.2% in a decade, comparable to established commercial photovoltaic modules. Compositional engineering is one of the most effective methods to boost the performance of MHP solar cells. Further improving the efficiency and the stability of MHP solar cells necessitates good understanding of the chemical-efficiency correlation and the chemical evolution during the degradation of MHP solar cells. In this regard, time-of-flight secondary ion mass spectrometry (ToF-SIMS) is a powerful tool to investigate the chemical aspect of MHPs and has played an important role in advancing the development of MHP optoelectronics. However, up to date, a review that can guide future utilization of ToF-SIMS in the MHP development is missing. Herein, the capabilities of ToF-SIMS in MHP investigations are summarized and analyzed from simple material synthesis and chemical distribution to more complicated device operation mechanism and stability. The strength of ToF-SIMS in resolving important issues in this field, such as interface composition, ion migration, and degradation in MHP is highlighted. Finally, an outlook with an emphasis on making the utmost of ToF-SIMS in developing MHP devices is provided.
机译：金属卤化物Perovskite（MHP）太阳能电池由于达到了25.2％的快速增长而达到了25.2％，与建立的商业光伏模块相当，太阳能电池引起了很多关注。组成工程是提高MHP太阳能电池性能的最有效方法之一。进一步提高MHP太阳能电池的效率和稳定性需要良好地理解化学效率相关和MHP太阳能电池的降解期间的化学演变。在这方面，飞行时间二次离子质谱（TOF-SIMS）是研究MHP的化学方面的强大工具，在推进MHP光电子的发展方面发挥了重要作用。但是，迄今为止，缺少了可以指导未来利用TOF-SIMS在MHP开发中的审查。这里，从简单的材料合成和化学分配到更复杂的装置操作机构和稳定性，总结了MHP研究中TOF-SIMS的能力。突出了TOF-SIMS在解决该领域的重要问题时的强度，例如界面组成，离子迁移和MHP中的降解。最后，提供了一种强调在开发MHP设备中进行TOF-SIM的最大的前景。

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