钙钛矿太阳能电池的稳定性:降解机制和补救措施

IF 1.9 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC Frontiers in electronics Pub Date : 2021-08-20 DOI:10.3389/felec.2021.712785
Sayantan Mazumdar, Ying Zhao, Xiaodang Zhang
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引用次数: 56

摘要

无机-有机金属卤化物钙钛矿光收集器基钙钛矿太阳能电池(PSCs)由于其效率的快速增长而成为太阳能电池研究的焦点。目前,稳定性和可靠性是硅基或薄膜基商用器件面临的挑战。钙钛矿太阳能电池的商业化仍然难以捉摸,因为这些设备在实际操作条件下缺乏稳定性,特别是在长时间使用时。大量的研究人员一直致力于提高钙钛矿太阳能电池的稳定性。在探索降解的补救措施之前,了解降解机制是最重要的。在这篇综述中,系统地了解了钙钛矿和钙钛矿太阳能电池的各种降解机制,然后讨论了克服稳定性问题所采取的不同步骤。讨论了有关降解机制的最新见解。对提高稳定性的各种方法进行了审查,重点介绍了符合商业太阳能组件实际应用操作标准的报告。特别讨论了国际电工委员会制定的运行稳定性标准,并报告了满足要求或表现优异的结果,这是评估器件在商业太阳能组件中实际应用前景的最重要标准。本文综述了钙钛矿和钙钛矿太阳能电池的降解途径,以及克服这些途径所采取的措施,其中包括具有良好运行稳定性的最新设备。
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Stability of Perovskite Solar Cells: Degradation Mechanisms and Remedies
Inorganic–organic metal halide perovskite light harvester-based perovskite solar cells (PSCs) have come to the limelight of solar cell research due to their rapid growth in efficiency. At present, stability and reliability are challenging aspects concerning the Si-based or thin film-based commercial devices. Commercialization of perovskite solar cells remains elusive due to the lack of stability of these devices under real operational conditions, especially for longer duration use. A large number of researchers have been engaged in an ardent effort to improve the stability of perovskite solar cells. Understanding the degradation mechanisms has been the primary importance before exploring the remedies for degradation. In this review, a methodical understanding of various degradation mechanisms of perovskites and perovskite solar cells is presented followed by a discussion on different steps taken to overcome the stability issues. Recent insights on degradation mechanisms are discussed. Various approaches of stability enhancement are reviewed with an emphasis on reports that complied with the operational standard for practical application in a commercial solar module. The operational stability standard enacted by the International Electrotechnical Commission is especially discussed with reports that met the requirements or showed excellent results, which is the most important criterion to evaluate a device’s actual prospect to be utilized for practical applications in commercial solar modules. An overall understanding of degradation pathways in perovskites and perovskite solar cells and steps taken to overcome those with references including state-of-the-art devices with promising operational stability can be gained from this review.
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