Proceedings of 13th Conference on Hybrid and Organic Photovoltaics (HOPV21)
Publication date: 11th May 2021
The commercialization of perovskite solar cells struggles despite the booming power conversion efficiencies, facile processability, and good compatibility with large‐area deposition techniques. The primary reason being the several instabilities of the perovskite devices. Here we show that enabling an indium tin oxide (ITO) buffer layer in the inverted architecture can significantly improve the stability of PSCs. Our holistic approach either dramatically slows down or completely prevents most of the degradation processes. Further, we demonstrate superior light soaking stabilities retaining 80% of initial efficiency under continuous illumination for over 2000h in ambient air and excellent thermal stabilities for more than 1500 hours with only less than 5% degradation under 85 °C thermal aging. Our barrier layer design enables excellent moisture, thermal and light-soaking stabilities to the perovskite solar cells, which is a crucial step to commercialization. The application of this stabilization strategy to large area cells and modules will be shown.
This research was sponsored by the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 764787. We acknowledge the research team at CHOSE for their support.
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International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
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