DOI: https://doi.org/10.29363/nanoge.stabperoworkshop.2023.004
Publication date: 20th January 2023
Current stability tests in the lab mainly focus on maintaining the solar cells under constant ambient and operational conditions such as controlled temperature, one-sun equivalent illumination, and maximum power point [1]. However, solar cells under operation face volatility, in particular regarding illumination and temperature. Additionally, they might be exposed to open circuit or negative voltages in case of partial shading of a module with devices connected in series. Furthermore, slow reversible process triggered by light and accelerated by temperature, for instance due to ion migration, play an important role in the performance of perovskite solar cells.
In this talk I will give an overview on stability measurements under fluctuating ambient conditions. I will discuss the main factors influencing stability and the effect of reversible degradation. Furthermore, I will comment on the role of the voltage during degradation. I will highlight the advances that have been made since the initial studies [2,3] and address open challenges.
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