Perovskite solar cells (PSCs) have emerged as a leading photovoltaic technology due to their high efficiency and cost-effectiveness, yet long-term stability and consistent performance remain challenges. This perspective discusses how local structural properties, such as grain boundaries and intragrain defects, and optoelectronic properties, including charge transfer and recombination processes, affect PSC performance, emphasizing the role of advanced imaging and mapping techniques in characterizing these properties. Additionally, the perspective extends to the stability of perovskite materials and devices, exploring how imaging and mapping techniques reveal degradation caused by environmental factors such as humidity, temperature, light, and electrical bias. Furthermore, this perspective also discusses the limitations of these local performance analyses, such as characterization scope, resolution, and sensitivity issues, as well as challenges in quantitative analysis. Understanding these constraints is essential for refining local performance analysis methods and advancing perovskite solar cell technology toward more reliable and efficient photovoltaic devices.

中文翻译：

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钙钛矿太阳能电池的局部性能分析：意义和前景


钙钛矿太阳能电池 （PSC） 因其高效率和成本效益而成为领先的光伏技术，但长期稳定性和一致的性能仍然是挑战。本观点讨论了局部结构特性（如晶界和晶粒内缺陷）和光电特性（包括电荷转移和复合过程）如何影响 PSC 性能，强调了先进的成像和映射技术在表征这些特性方面的作用。此外，该观点扩展到钙钛矿材料和器件的稳定性，探索成像和映射技术如何揭示由环境因素（如湿度、温度、光和电偏置）引起的退化。此外，该观点还讨论了这些局部性能分析的局限性，例如表征范围、分辨率和敏感性问题，以及定量分析中的挑战。了解这些约束对于改进局部性能分析方法和推动钙钛矿太阳能电池技术朝着更可靠、更高效的光伏器件发展至关重要。