Organic–inorganic perovskites photovoltaic materials are considered as one of the promising candidates for the emerging photovoltaic (PV) sector. It has drawn tremendous attention from fundamental research and PV industries, due to its high efficiency, chemical properties, and low fabrication cost. But, its lifetime under real field operation is always the major obstacle toward commercialization. Potential-induced degradation (PID) is known as the common reliable threat in the established commercial PV technologies which lead to catastrophic failure within a short time. Thus, it is essential to enable reliability assessment of PID on the precommercial development stage of perovskite photovoltaics to further enrich the confidence by identifying, eliminating, and developing an understanding of the possible degradation mechanism in the field condition. In this article, different architecture-based perovskite solar cells are studied to reveal the degradation mechanism under PID for the first time. The results show that PSCs of n–i–p with a phenyl C61 butyric acid methyl ester (PCBM) layer have good stability under PID compared with other treated structures with only 4% degradation after 18 h.

中文翻译：

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电位诱导降解对不同结构钙钛矿太阳能电池的影响

有机-无机钙钛矿光伏材料被认为是新兴光伏（PV）领域的有前途的候选材料之一。由于其高效率、化学性能和低制造成本，它引起了基础研究和光伏行业的极大关注。但是，它在实际现场操作下的寿命始终是商业化的主要障碍。电位引起的退化 (PID) 被称为已建立的商业光伏技术中常见的可靠威胁，可在短时间内导致灾难性故障。因此，必须在钙钛矿光伏的预商业开发阶段对 PID 进行可靠性评估，以通过识别、消除、并了解现场条件下可能的降解机制。在本文中，研究了基于不同架构的钙钛矿太阳能电池，首次揭示了 PID 下的降解机制。结果表明，与其他处理过的结构相比，具有苯基 C61 丁酸甲酯 (PCBM) 层的 n-i-p PSC 在 PID 下具有良好的稳定性，18 小时后仅降解 4%。