Coring Technique Development and Failure Analysis of Perovskite Solar Modules

IF 10.2 2区材料科学 Q1 ENERGY & FUELS

Progress in Photovoltaics Pub Date : 2026-10-13 Epub Date: 2026-05-19 DOI:10.1002/pip.70121

Yujian Han, Xiting Lang, Minghui Li, Hao Tian, Hong Lu, Xirui Liu, Xingxing Wang, Lang Wen, Jiang Sheng, Jichun Ye, Chongwen Li, Chuanxiao Xiao

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引用次数: 0

Abstract

Understanding degradation in perovskite solar modules (PSMs) is crucial for improving long-term stability, yet accessing internal layers without introducing artifacts remains difficult. We present a controlled coring method tailored for PSMs that enables mechanical extraction of intact device sections while preserving their structural, chemical, and optoelectronic properties. Comprehensive characterizations confirm that the cored devices remain representative of the original module, with no detectable artifacts introduced during extraction. Applying this technique to field-aged modules operated outdoors for 10 months reveals nonuniform photoluminescence, bandgap shifts, Ag oxidation, and the α-to-δ phase transition of formamidinium lead iodide (FAPbI₃), which are clear evidence of moisture-driven Ag corrosion and ion migration at the perovskite/Ag interface. This work establishes a reliable approach for accessing encapsulated perovskite modules and provides direct insight into real-world degradation pathways, offering guidance for improving the durability of perovskite photovoltaic technologies.

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钙钛矿太阳能组件取芯技术发展及失效分析

了解钙钛矿太阳能组件（psm）的降解对于提高长期稳定性至关重要，但在不引入人工制品的情况下进入内层仍然很困难。我们提出了一种为psm量身定制的受控取芯方法，可以在保留其结构，化学和光电子特性的同时机械提取完整的器件部分。综合表征证实，核心设备仍然具有原始模块的代表性，在提取过程中没有引入可检测的伪影。将该技术应用于户外运行10个月的现场老化模块，发现了甲酰胺型碘化铅（FAPbI3）的不均匀光致发光、带隙位移、Ag氧化和α-to-δ相变，这是水分驱动的钙钛矿/Ag界面银腐蚀和离子迁移的明确证据。这项工作建立了一种可靠的方法来获取封装的钙钛矿模块，并提供了对现实世界降解途径的直接洞察，为提高钙钛矿光伏技术的耐久性提供了指导。

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来源期刊

Progress in Photovoltaics 工程技术-能源与燃料

CiteScore

18.10

自引率

7.50%

发文量

130

审稿时长

5.4 months

期刊介绍： Progress in Photovoltaics offers a prestigious forum for reporting advances in this rapidly developing technology, aiming to reach all interested professionals, researchers and energy policy-makers. The key criterion is that all papers submitted should report substantial “progress” in photovoltaics. Papers are encouraged that report substantial “progress” such as gains in independently certified solar cell efficiency, eligible for a new entry in the journal''s widely referenced Solar Cell Efficiency Tables. Examples of papers that will not be considered for publication are those that report development in materials without relation to data on cell performance, routine analysis, characterisation or modelling of cells or processing sequences, routine reports of system performance, improvements in electronic hardware design, or country programs, although invited papers may occasionally be solicited in these areas to capture accumulated “progress”.